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Table 1 Demographic and anthropometric characteristics of urban and rural mothers on postnatal wards

From: Breastfeeding practices on postnatal wards in urban and rural areas of the Deyang region, Sichuan province of China

  Total Urban Rural p-value
n = 201 n = 102 n = 99
Age, years 26.0 ± 4.2 26.9 ± 3.7 25.0 ± 4.5 0.001
Weight pre-pregnancy, kg 50.5 ± 6.8 51.1 ± 6.9 49.8 ± 6.7 0.193
Height, m 1.58 ± 0.05 1.59 ± 0.05 1.57 ± 0.05 0.006
BMI a, pre-pregnancy, (kg/m2) 20.35 ± 2.65 20.33 ± 2.54 20.36 ± 2.78 0.943
BMI <18.5, n (%) 42 (22.2) 21 (21.9) 21 (22.6)  
BMI 18.5 ~ 24.9, n (%) 137 (72.5) 71 (74.0) 66 (71.0)  
BMI 25 ~ 29.9, n (%) 8 (4.2) 4 (2.1) 4 (4.3)  
BMI ≥30, n (%) 2 (1.1) 0 2 (2.2)  
Parity 1.12 ± 0.33 1.09 ± 0.29 1.16 ± 0.37 0.151
Education     
≤12 years (senior high school), n (%) 141(70.9) 55 (53.9) 86 (88.7) <0.001
>12 years (i.e. university or above), n (%) 58 (29.1) 47 (46.1) 11 (11.3)  
Monthly income, RMB b 2683 ± 2542 3074 ± 3086 2241 ± 1648 0.026
  1. Values are mean ± SD or number (%)
  2. p-value: independent-samples T test or Fisher’s exact test
  3. aBMI, body mass index (weight/squared height), categorized following WHO standard [35, 61]
  4. bChinese currency, 1 RMB = 0.1622 US Dollar (2014.08.28)