ncbirths <- structure(list(fage = c(NA, NA, 19L, 21L, NA, NA, 18L, 17L, NA, 20L, 30L, NA, NA, NA, 21L, NA, 14L, 16L, 20L, 18L, NA, 20L, 20L, NA, 26L, NA, NA, 20L, 31L, 17L, NA, 19L, 20L, 17L, 19L, 18L, 18L, NA, 28L, 28L, 20L, NA, 25L, 20L, 23L, 21L, 21L, 24L, 20L, 20L, 21L, 21L, 25L, 20L, 21L, NA, 18L, 20L, 18L, 21L, NA, 22L, NA, 23L, 20L, 24L, 20L, NA, 25L, 24L, NA, 22L, 23L, 21L, NA, NA, 21L, 31L, 20L, NA, 21L, 22L, NA, NA, 23L, 19L, 24L, 20L, 21L, 24L, 20L, NA, 21L, 32L, 21L, 21L, NA, 19L, NA, NA, 25L, 25L, NA, NA, NA, 27L, NA, NA, 19L, 26L, 22L, 21L, 17L, NA, 21L, 21L, 29L, NA, 21L, 20L, 22L, 24L, 21L, 20L, 23L, 25L, 25L, 21L, 21L, 18L, 21L, 24L, NA, 21L, 21L, 31L, 24L, 20L, 21L, 18L, NA, 36L, 22L, 22L, 20L, 23L, 25L, 18L, 28L, NA, 22L, NA, NA, 23L, 38L, 21L, 22L, 22L, 33L, 22L, 24L, 26L, 20L, 28L, NA, NA, NA, NA, 28L, 19L, NA, 19L, NA, NA, 22L, 22L, 22L, 35L, 24L, NA, 25L, 32L, 24L, 28L, 27L, 22L, 22L, 18L, 22L, 20L, 23L, NA, 26L, 24L, 24L, 29L, 22L, 21L, 25L, 22L, 18L, 22L, 23L, 25L, NA, NA, 26L, NA, 35L, 25L, 22L, NA, NA, 21L, NA, 21L, NA, 24L, NA, NA, 27L, NA, 21L, NA, 21L, NA, 28L, 34L, 24L, 22L, 28L, 35L, 24L, 26L, 25L, 24L, 26L, 31L, 26L, 27L, 26L, 22L, 24L, NA, 23L, 26L, NA, NA, 26L, 23L, NA, 28L, 28L, 26L, NA, 22L, 23L, 21L, NA, 22L, 21L, 21L, 30L, 23L, 24L, NA, 21L, 22L, 29L, NA, 23L, 27L, 24L, 27L, 24L, 30L, NA, 21L, 25L, NA, 22L, NA, 27L, 25L, 25L, 31L, 28L, 26L, 41L, NA, 26L, 31L, 24L, 25L, 26L, 29L, 24L, NA, 28L, 28L, 24L, 20L, NA, 28L, 23L, 22L, 36L, 31L, NA, NA, 26L, 23L, 27L, 26L, NA, 23L, 27L, 25L, 24L, 22L, NA, 20L, NA, 26L, NA, NA, NA, 28L, NA, 25L, 23L, 22L, 21L, 26L, 44L, 26L, NA, 26L, 43L, 26L, 21L, 27L, 25L, 28L, 24L, 45L, NA, 26L, 27L, 27L, 25L, NA, 30L, 27L, 32L, NA, 29L, 30L, 22L, NA, 29L, 32L, NA, 24L, 27L, 22L, 28L, 25L, 47L, 46L, NA, NA, 28L, 34L, 25L, 28L, 19L, 28L, 20L, NA, 26L, 30L, 32L, NA, NA, NA, NA, 32L, 29L, NA, NA, 24L, NA, NA, 26L, 30L, NA, 23L, 24L, 32L, 32L, NA, 29L, 23L, 24L, NA, 26L, 25L, 36L, NA, 31L, 35L, 27L, NA, 28L, NA, 27L, NA, 24L, 27L, 34L, 32L, 29L, 29L, 24L, 25L, NA, NA, 27L, 30L, 25L, 26L, 26L, 34L, NA, 23L, 21L, 25L, NA, 33L, NA, 24L, NA, 23L, 30L, 27L, 28L, 28L, 33L, 30L, 35L, 28L, 29L, 30L, 32L, 25L, NA, 33L, 28L, 29L, 30L, 29L, 27L, NA, 29L, NA, 26L, 27L, 28L, 25L, 32L, 29L, 30L, NA, NA, 32L, 23L, 25L, 30L, NA, 32L, 26L, NA, 25L, NA, 42L, 22L, NA, 29L, 31L, 27L, 29L, 25L, 35L, NA, 29L, 28L, 33L, 26L, 28L, 28L, 30L, 31L, 27L, 32L, 37L, 30L, 40L, 31L, 30L, 31L, 33L, 45L, 28L, 32L, 36L, 30L, 31L, NA, NA, 39L, NA, 33L, 32L, 44L, 35L, 27L, 37L, NA, NA, 34L, 39L, 24L, 31L, 27L, 30L, 33L, 30L, NA, 34L, 27L, 33L, 28L, NA, 28L, 36L, NA, 27L, NA, 25L, 28L, 30L, 28L, 30L, 33L, 28L, 33L, 30L, 45L, 31L, 27L, 24L, 33L, 30L, 23L, 35L, 46L, 34L, 28L, 29L, 33L, NA, 31L, 29L, 24L, 35L, 28L, 34L, 28L, 33L, NA, 30L, 23L, 31L, 37L, 26L, NA, 25L, 34L, 32L, 33L, 34L, 37L, 31L, NA, 30L, 28L, 28L, 31L, 29L, 30L, 31L, 27L, 45L, 34L, 28L, 30L, 37L, 31L, 30L, 31L, 28L, 42L, 30L, 35L, 34L, 32L, NA, 30L, 29L, 28L, 33L, 30L, 32L, 29L, 29L, 30L, NA, 30L, 34L, 26L, 22L, 34L, 40L, 36L, 35L, 34L, 31L, 27L, 33L, 33L, 29L, 30L, 36L, NA, 23L, NA, 24L, 31L, 34L, 33L, 29L, 33L, 31L, 31L, 34L, 31L, 33L, 30L, 25L, 33L, 32L, 30L, 41L, 36L, 33L, NA, 29L, 34L, NA, 35L, 29L, 31L, 33L, 31L, 31L, 29L, 34L, 36L, NA, 30L, NA, NA, 32L, 32L, 31L, 30L, 34L, 38L, 35L, 30L, 28L, 26L, 35L, 34L, 35L, 27L, 42L, 32L, NA, 40L, 35L, 32L, 34L, 38L, NA, NA, 31L, 31L, 34L, 35L, NA, 38L, 31L, 36L, 34L, 32L, 35L, 35L, 35L, 30L, 32L, 33L, 32L, 28L, 32L, 38L, 34L, 35L, NA, 43L, 37L, 30L, 32L, 32L, 32L, NA, 32L, 29L, 33L, NA, 33L, 30L, NA, 33L, 28L, 29L, 33L, 36L, 35L, 26L, 31L, 34L, 31L, 44L, 34L, 32L, 31L, 30L, 40L, 35L, 35L, 36L, 34L, 36L, 35L, 38L, 27L, NA, 33L, 35L, 32L, 45L, 42L, 32L, NA, 23L, 35L, 35L, 33L, 35L, NA, 32L, 42L, 32L, 31L, 38L, 33L, 36L, 36L, 36L, 36L, 27L, 34L, 31L, 34L, 33L, 35L, 31L, 42L, 33L, 35L, 35L, 33L, 33L, 40L, 32L, 31L, 34L, 38L, 37L, 27L, 34L, 32L, 38L, 34L, 35L, 48L, 34L, 34L, 37L, 37L, 34L, 25L, 32L, 35L, 37L, 40L, 38L, 38L, 35L, 35L, 34L, 33L, 35L, 35L, 37L, 34L, 33L, 36L, 32L, 33L, 35L, 35L, 40L, 36L, 40L, 36L, 34L, 22L, 38L, 31L, 34L, 40L, 30L, 26L, 35L, 35L, 30L, 34L, 39L, 38L, 38L, 38L, 38L, NA, 34L, 38L, 43L, 30L, 34L, 39L, 38L, NA, 36L, 39L, 36L, 34L, 39L, 37L, 33L, 32L, NA, 35L, 41L, 35L, 35L, 42L, 34L, 32L, 48L, 32L, 36L, 33L, NA, 32L, 38L, 31L, 38L, 37L, 42L, 35L, 37L, 37L, 34L, 39L, 41L, 30L, 32L, 40L, 37L, 42L, 33L, 39L, 33L, 42L, 30L, 37L, 33L, 37L, 36L, 39L, 35L, 32L, 40L, 34L, 28L, 41L, 37L, 34L, 41L, 36L, 38L, 39L, 37L, 35L, NA, 41L, 44L, 42L, 37L, 38L, 37L, 36L, 39L, 36L, 38L, 47L, 37L, 42L, 34L, 43L, 37L, NA, NA, 41L, 38L, 45L, 38L, 37L, 39L, 44L, 42L, NA, 40L, 44L, 40L, 42L, 26L, 36L, NA, 41L, 39L, 43L, 38L, NA, 46L, 53L, 40L, 34L, 43L, 41L, 41L, 44L, 42L, 33L, 46L, NA, 48L, 50L, 42L, 43L, 40L, 34L, NA, 47L, 34L, 39L, 55L, 45L), mage = c(13L, 14L, 15L, 15L, 15L, 15L, 15L, 15L, 16L, 16L, 16L, 16L, 16L, 16L, 16L, 16L, 16L, 16L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 17L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 18L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 19L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 20L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 21L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 22L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 23L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 24L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 25L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 26L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 27L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 28L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 29L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 30L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 31L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 32L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 33L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 34L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 35L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 36L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 37L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 38L, 39L, 39L, 39L, 39L, 39L, 39L, 39L, 40L, 40L, 40L, 40L, 40L, 40L, 40L, 40L, 40L, 41L, 41L, 41L, 41L, 41L, 41L, 41L, 41L, 42L, 42L, 45L, 46L, 50L), mature = structure(c(2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 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2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L), .Label = c("mature mom", "younger mom" ), class = "factor"), weeks = c(39L, 42L, 37L, 41L, 39L, 38L, 37L, 35L, 38L, 37L, 45L, 42L, 40L, 38L, 38L, 40L, 40L, 24L, 40L, 37L, 39L, 40L, 39L, 40L, 38L, 38L, 39L, 40L, 39L, 38L, 42L, 36L, 29L, 29L, 35L, 35L, 31L, 42L, 38L, 41L, 43L, 41L, 40L, 38L, 37L, 38L, 41L, 40L, 40L, 38L, 40L, 40L, 42L, 41L, 37L, 39L, 40L, 38L, 39L, 41L, 40L, 39L, 39L, 37L, 41L, 40L, 38L, 44L, 41L, 37L, 36L, 33L, 30L, 36L, 33L, 39L, 39L, 40L, 40L, 41L, 40L, 38L, 39L, 42L, 37L, 38L, 40L, 38L, 41L, 40L, 41L, 39L, 37L, 43L, 41L, 39L, 38L, 37L, 39L, 39L, 40L, 41L, 34L, 34L, 22L, 32L, 36L, 35L, 36L, 36L, 39L, 40L, 39L, 38L, 40L, 38L, 40L, 39L, 37L, 40L, 38L, 41L, 41L, 40L, 39L, 42L, 39L, 38L, 40L, 39L, 38L, 41L, 39L, 37L, 38L, 41L, 38L, 37L, 38L, 40L, 37L, 41L, 43L, 38L, 38L, 39L, 38L, 38L, 38L, 38L, 41L, 39L, 40L, 41L, 37L, 42L, 38L, 43L, 39L, 37L, 39L, 41L, 41L, 42L, 40L, 39L, 37L, 35L, 35L, 33L, 36L, 34L, 33L, 36L, 34L, 32L, 38L, 38L, 39L, 41L, 39L, 40L, 40L, 38L, 41L, 39L, 40L, 39L, 38L, 43L, 40L, 41L, 44L, 41L, 41L, 39L, 37L, 38L, 39L, 39L, 40L, 37L, 39L, 40L, 41L, 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41L, 38L, 37L, 39L, 38L, 38L, 39L, 40L, 39L, 39L, 38L, 39L, 39L, 38L, 37L, 39L, 41L, 38L, 38L, 37L, 44L, 39L, 37L, 38L, 37L, 37L, 39L, 39L, 39L, 41L, 38L, 40L, 41L, 37L, 39L, 35L, 35L, 36L, 22L, 34L, 36L, 34L, 35L, 41L, 39L, 37L, 42L, 44L, 39L, 37L, 39L, 39L, 39L, 40L, 43L, 42L, 37L, 37L, 40L, 39L, 39L, 39L, 39L, 38L, 40L, 43L, 38L, 39L, 39L, 38L, 39L, 39L, 38L, 38L, 36L, 36L, 36L, 34L, 31L, 35L, 36L, 35L, 39L, 37L, 38L, 38L, 39L, 41L, 38L, 39L, 37L, 39L, 39L, 40L, 38L, 37L, 39L, 41L, 40L, 37L, 40L, 38L, 38L, 41L, 39L, 37L, 38L, 45L, 39L, 37L, 41L, 38L, 39L, 40L, 40L, 39L, 37L, 38L, 37L, 40L, 40L, 39L, 40L, 40L, 40L, 41L, 39L, 26L, 30L, 36L, 34L, 36L, 33L, 36L, NA, 41L, 39L, 39L, 41L, 41L, 40L, 38L, 41L, 38L, 40L, 43L, 38L, 37L, 37L, 40L, 38L, 38L, 39L, 39L, 40L, 39L, 37L, 37L, 39L, 40L, 38L, 39L, 39L, 37L, 33L, 33L, 33L, 35L, 26L, 26L, 33L, 36L, 40L, 39L, 38L, 42L, 37L, 38L, 42L, 37L, 39L, 39L, 39L, 39L, 39L, 39L, 38L, 38L, 39L, 38L, 38L, 38L, 37L, 37L, 41L, 37L, 41L, 37L, 39L, 37L, 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1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, NA, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, NA, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L), .Label = c("full term", "premie"), class = "factor"), visits = c(10L, 15L, 11L, 6L, 9L, 19L, 12L, 5L, 9L, 13L, 9L, 8L, 4L, 12L, 15L, 7L, 12L, 5L, 8L, 10L, 10L, 17L, 9L, 15L, 11L, 12L, 12L, 10L, 12L, 12L, 8L, 15L, 6L, 4L, 3L, 12L, 6L, 15L, 15L, 10L, 8L, 6L, 6L, 6L, 6L, 16L, 10L, 15L, 11L, 13L, 12L, 13L, 11L, 9L, 15L, 8L, NA, 14L, 11L, 13L, 12L, 14L, 0L, 4L, 14L, 14L, 15L, 15L, 17L, 8L, 18L, 9L, 2L, 8L, 7L, 10L, 12L, 11L, 15L, 12L, 11L, 15L, 10L, 10L, 18L, 6L, 12L, 17L, 15L, 4L, 15L, 9L, 8L, 2L, 13L, 15L, 3L, 0L, 11L, 7L, 16L, 13L, 10L, 0L, 5L, 5L, 9L, 12L, 10L, 12L, 14L, 9L, 16L, 15L, 14L, 15L, 11L, 16L, 10L, 15L, 14L, 16L, 14L, 3L, 0L, 15L, 8L, 14L, 12L, 10L, 10L, 15L, 16L, 23L, 10L, 13L, 9L, 12L, 8L, 10L, 2L, 12L, 10L, 13L, 12L, 13L, 15L, 8L, 7L, 12L, 11L, 13L, 7L, 11L, 5L, 11L, 8L, 11L, 15L, 8L, 12L, 16L, 12L, 30L, 17L, 15L, 10L, 20L, 7L, 0L, 15L, 13L, 9L, 10L, 14L, 5L, 12L, 7L, 14L, 18L, 10L, 11L, 10L, 12L, 8L, 4L, 15L, 14L, 14L, 15L, 15L, 12L, 11L, 13L, 10L, 18L, 19L, 10L, 8L, 8L, 15L, 5L, 10L, 16L, 10L, 20L, 9L, 10L, 10L, 14L, 16L, 12L, 5L, 10L, 11L, 15L, 10L, 15L, 12L, 10L, 12L, 15L, 4L, 3L, 15L, 8L, 9L, 10L, 7L, 11L, 12L, 10L, 12L, 10L, 14L, 15L, 14L, 12L, 10L, 11L, 18L, 11L, 10L, 15L, 15L, 9L, 13L, 12L, 6L, 14L, 8L, 15L, 6L, 11L, 7L, 15L, 15L, 15L, 7L, 14L, 16L, 10L, 8L, 10L, 5L, 13L, 18L, 14L, 16L, 9L, 15L, 20L, 16L, 12L, 11L, 16L, 18L, 9L, 12L, 13L, 13L, 8L, 12L, 10L, 13L, 10L, 8L, 5L, 3L, 9L, 14L, 14L, 12L, 15L, 15L, 20L, 13L, 14L, 14L, 8L, 15L, 10L, 11L, 12L, 13L, 10L, 10L, 12L, 10L, 12L, 14L, 9L, 15L, 15L, 10L, 10L, 6L, 15L, 13L, 10L, 4L, 15L, NA, 10L, 11L, 12L, 10L, 12L, 13L, 5L, 18L, 11L, 5L, 18L, 0L, 12L, 2L, 14L, 16L, 9L, 18L, 15L, 10L, 7L, 13L, 15L, 9L, 14L, 11L, 15L, 12L, 7L, 11L, 2L, 15L, 16L, 15L, 15L, 14L, 16L, 18L, 12L, 6L, 17L, 10L, 10L, 11L, 16L, 12L, 14L, 12L, 20L, 15L, 12L, 15L, 12L, 11L, 12L, 11L, 6L, 13L, 12L, 8L, 5L, 5L, 12L, 8L, 12L, 12L, 3L, 7L, 14L, 11L, 11L, 16L, 12L, 15L, 12L, 15L, 13L, 13L, 17L, 18L, 8L, 15L, 14L, 9L, 18L, 13L, 14L, 14L, 30L, 14L, 8L, 7L, 9L, 11L, 6L, 18L, 15L, 6L, 14L, 10L, 8L, 22L, 19L, 12L, 20L, 15L, 15L, 12L, 10L, 10L, 12L, 5L, 14L, 15L, 10L, 8L, 15L, 8L, 10L, 0L, 11L, 15L, 14L, 15L, 14L, 15L, 12L, 12L, 15L, 15L, 15L, 13L, 12L, 15L, 11L, 13L, 14L, 13L, 12L, 16L, 15L, 12L, 6L, 10L, 15L, 13L, 12L, 14L, 8L, 14L, 6L, 20L, 12L, 4L, 9L, 18L, 16L, 15L, 15L, 14L, 9L, 14L, 8L, 12L, 15L, 14L, 18L, 20L, 10L, 10L, 14L, 18L, 4L, 16L, 14L, 8L, 14L, 13L, 13L, 12L, 13L, 11L, 8L, 10L, 5L, 13L, 12L, 5L, 9L, 14L, 12L, 9L, 11L, 15L, 14L, 16L, 10L, 13L, 10L, NA, 11L, 10L, 14L, 14L, 16L, 8L, 12L, 16L, 12L, 15L, 11L, 11L, 15L, 15L, 15L, 10L, 17L, 10L, 11L, 6L, 13L, 17L, 15L, 5L, 22L, 16L, 12L, 15L, 15L, 15L, 13L, NA, 13L, 10L, 8L, 13L, 20L, 15L, 12L, 14L, 12L, 11L, 12L, 14L, 11L, 15L, 5L, 11L, 13L, 16L, 10L, 15L, 10L, 15L, 12L, 12L, 10L, 10L, 12L, 13L, 15L, 12L, 16L, 11L, 10L, NA, 18L, 14L, 11L, 14L, 6L, 9L, 8L, 5L, 15L, 10L, 9L, 14L, 15L, 10L, 11L, 16L, 15L, 12L, 15L, 11L, 14L, 14L, 12L, 8L, 14L, 6L, 16L, 11L, 18L, 17L, 10L, 8L, 13L, 7L, 14L, 18L, 12L, 19L, 13L, 10L, 12L, 12L, 17L, 15L, 14L, 10L, 12L, 10L, 12L, 15L, 11L, 15L, 30L, 14L, NA, 10L, 12L, 6L, 10L, 12L, 15L, 10L, 12L, 15L, 12L, 10L, 12L, 15L, 10L, 9L, 11L, 15L, 14L, 12L, 14L, 11L, 14L, 10L, 10L, 16L, 10L, 12L, 14L, 13L, 9L, 13L, 13L, 15L, 5L, 12L, 8L, 14L, 11L, 15L, 8L, 10L, 14L, 12L, 15L, 11L, 10L, 15L, 12L, 12L, 10L, 10L, 10L, 14L, 12L, 15L, 20L, 9L, 15L, 15L, 14L, 11L, 10L, 16L, 18L, 14L, 12L, 12L, 10L, 12L, 15L, 13L, 7L, 10L, 12L, 15L, 10L, 12L, 13L, 15L, 12L, 6L, 12L, 11L, 16L, 15L, 14L, 5L, 14L, 8L, 10L, 13L, 9L, 12L, 16L, 8L, 9L, 15L, 12L, 14L, 12L, 12L, 11L, 20L, 12L, 10L, 14L, 12L, 6L, 11L, 12L, 10L, 10L, 10L, 14L, 18L, 14L, 12L, 11L, 10L, 13L, 15L, 13L, 10L, 12L, 8L, 13L, 14L, 9L, 14L, 13L, 8L, 10L, 18L, 11L, 12L, 15L, 13L, 9L, 11L, 24L, 13L, 16L, 12L, 14L, 13L, 15L, 12L, 10L, 12L, 10L, 10L, 18L, 13L, 13L, 14L, 15L, 14L, 16L, 15L, 30L, 10L, 10L, 12L, NA, 12L, 14L, 13L, 15L, 25L, 13L, 15L, 16L, 16L, 11L, 13L, 10L, 13L, 11L, 15L, 10L, 13L, 12L, 15L, 15L, 13L, 20L, 15L, 13L, 11L, 11L, 13L, 10L, 18L, 13L, 10L, 14L, 10L, 13L, 14L, 15L, 5L, 15L, 12L, 10L, 15L, 12L, 18L, 20L, 17L, 12L, 10L, 16L, 16L, 10L, 14L, 10L, 8L, 9L, 10L, 7L, 10L, 17L, 20L, 16L, 12L, 12L, 14L, 16L, 14L, 3L, 14L, 12L, 12L, 10L, 11L, 16L, 14L, 17L, 18L, 14L, 18L, 13L, 12L, 10L, 12L, 15L, 20L, 8L, 10L, 10L, 10L, 12L, 16L, 12L, 11L, 8L, 18L, 6L, 4L, 13L, 14L, 4L, 6L, 22L, 18L, 26L, 12L, 13L, 15L, 10L, 11L, 12L, 20L, 15L, 11L, 12L, 11L, 11L, 18L, 14L, 9L, 5L, 11L, 14L, 5L, 4L, 5L, 10L, 18L, 5L, 17L, 13L, 9L, 12L, 12L, 16L, 18L, 14L, 10L, 10L, 17L, 15L, 10L, 13L, 12L, NA, 16L, 10L, 14L, 3L, 5L, 15L, 20L, 9L, 5L, 11L, 16L, 14L, 15L, 15L, 13L, 15L, 14L, 15L, 5L, 15L, 10L, 11L, 12L, 17L, 20L, 16L, 10L, 6L, 13L, 8L, 11L, 12L, 13L, 30L, 12L, 13L, 14L, NA, 15L, 12L, 11L, 14L, 12L, 15L, 13L, 10L, 18L, 15L, 8L, 14L), marital = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 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2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 1L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 1L, 1L, 1L), .Label = c("female", "male"), class = "factor"), habit = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 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1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 1L, 1L, 1L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, NA, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L ), .Label = c("nonsmoker", "smoker"), class = "factor"), whitemom = structure(c(1L, 1L, 2L, 2L, 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2L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 1L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, NA, 2L, 2L, 2L, 1L, 2L, 2L, 2L, 2L, 1L, 2L, 1L, 2L, 2L, 1L, 1L, 1L, 2L, 2L, 1L, 2L), .Label = c("not white", "white"), class = "factor")), row.names = c(NA, -1000L), class = c("tbl_df", "tbl", "data.frame"))