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Table 2 Main characteristics of the cohort

From: A summary index of infant and child feeding practices is associated with child growth in urban Shanghai

Characteristic n result
Child age
Visit 1 (6-month-old) 180 5.85 ± 0.44 a
Visit 2 (12-month-old) 180 12.13 ± 0.29
Visit 3 (18-month-old) 180 18.12 ± 0.27
Child gender [n (%)]
Male 79 43.89
Female 101 56.11
Breastfeeding [n (%)]
Visit 1 (6-month-old) 88 48.89
Visit 2 (12-month-old) 12 6.67
Visit 3 (18-month-old) 3 1.67
Child nutritional status
Length-for-age z score   
Visit 1 (6-month-old) 180 0.58 ± 0.80
Visit 2 (12-month-old) 180 0.43 ± 0.88
Visit 3 (18-month-old) 180 0.41 ± 0.91
Weight-for-age z score
Visit 1 (6-month-old) 180 0.83 ± 0.78
Visit 2 (12-month-old) 180 0.70 ± 0.74
Visit 3 (18-month-old) 180 0.65 ± 0.80
Weight-for-length z score
Visit 1 (6-month-old) 180 0.76 ± 0.88
Visit 2 (12-month-old) 180 0.70 ± 0.77
Visit 3 (18-month-old) 180 0.62 ± 0.82
Mother’s pre-pregnancy height (cm) 180 161.61 ± 4.24
Mother’s pre-pregnancy weight (kg) 180 55.64 ± 8.02
Mother’s pre-pregnancy BMI (kg/m2) 180 21.30 ± 2.93
Caregiver’s schooling years [n (%)]
12y 75 41.67
>12y 105 58.33
Annual household income [n (%)]
RMB 60 thousand per year 56 31.11
RMB 60-150 thousand per year 81 45.00
>RMB 150 thousand per year 43 23.89
  1. aMean ± SD (all such values).