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Table 2 Descriptive statistics for participants from the Add Health Study, 1994–2008. Sibling pair sample

From: Breastfeeding is associated with waist-to-height ratio in young adults

   Breastfeeding status (Yes/No)
Full sample No Yes
1179 715 464
n % n % n %
Males 581 49.28 % 350 48.95 % 231 49.78 %
Females 598 50.72 % 365 51.05 % 233 50.22 %
Race
 Non-Hispanic White 625 53.01 % 321 44.90 % 304 65.52 %
 Non-Hispanic African American 403 34.18 % 333 46.57 % 70 15.09 %
 Non-Hispanic Asian/Native American 35 2.97 % 8 1.12 % 27 5.82 %
 Hispanic 116 9.84 % 53 7.41 % 63 13.58 %
Parent smoker
 No 194 16.45 % 116 16.22 % 78 16.81 %
 Yes 369 31.30 % 270 37.76 % 99 21.34 %
 Missing 616 52.25 % 329 46.01 % 287 61.85 %
Low birth weight
 No 984 83.46 % 558 78.04 % 426 91.81 %
 Yes 160 13.57 % 126 17.62 % 34 7.33 %
 Missing 35 2.97 % 31 4.34 % 4 0.86 %
Parent socioeconomic status
 Below median income 661 56.06 % 453 63.36 % 208 44.83 %
 Above median income 518 43.94 % 262 36.64 % 256 55.17 %
Maternal obesity
 No 909 77.10 % 560 78.32 % 349 75.22 %
 Yes 270 22.90 % 155 21.68 % 115 24.78 %
  Mean SE Mean SE Mean SE
Body mass index 29.321 0.223 29.880 0.300 28.459 0.325
Waist-to-height ratio 0.580 0.003 0.588 0.004 0.566 0.004