Table 2 Main characteristics of the cohort
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 |