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Table 1 Descriptive statistics for participants from the add health study, 1994-2008. Unrelated sample

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

   Breastfeeding status (Yes/No)
Full sample No Yes
4648 2362 2286
n % n % n %
Males 2116 45.52 % 1056 44.71 % 1060 46.37 %
Females 2532 54.48 % 1306 55.29 % 1226 53.63 %
Race
 Non-Hispanic White 2865 61.64 % 1368 57.92 % 1497 65.49 %
 Non-Hispanic African American 856 18.42 % 589 24.94 % 267 11.68 %
 Non-Hispanic Asian/Native American 259 5.57 % 89 3.77 % 170 7.44 %
 Hispanic 666 14.33 % 315 13.34 % 351 15.35 %
Parent smoker
 No 714 15.36 % 370 15.66 % 344 15.05 %
 Yes 1328 28.57 % 838 35.48 % 490 21.43 %
 Missing 2606 56.07 % 1154 48.86 % 1452 63.52 %
Low birth weight
 No 4351 93.61 % 2155 91.24 % 2196 96.06 %
 Yes 216 4.65 % 146 6.18 % 70 3.06 %
 Missing 81 1.74 % 61 2.58 % 20 0.87 %
Parent socioeconomic status
 Below median income 2101 45.20 % 1250 52.92 % 851 37.23 %
 Above median income 2547 54.80 % 1112 47.08 % 1435 62.77 %
Maternal obesity
 No 3790 81.54 % 1901 80.48 % 1889 82.63 %
 Yes 858 18.46 % 461 19.52 % 397 17.37 %
  Mean SE Mean SE Mean SE
Body mass index 29.007 0.112 29.803 0.165 28.185 0.148
Waist-to-height ratio 0.575 0.002 0.589 0.002 0.562 0.002