No Relationship between Maternal Iron Status and Postpartum Depression in Two Samples in China
Table 2
Background characteristics of the two samples in Chinaa.
Sample
Pilot
Confirmatory
Mother and family
Mother age, years
<0.001
Mother high school graduate %
66.2 (90/136)
31.5 (174/552)
<0.001
Annual household income %
<0.001
<5000,
46.5 (59/127)
87.1 (481/552)
>5000, ¥
53.5 (68/127)
12.9 (71/552)
Infant
Gender, %male
53.3 (73/137)
54.5 (305/560)
0.44
Gestational age, weeks
0.36
Birth weight, g
0.28
varies slightly due to occasional missing data for some measures. Values are expressed as means ± SD or % for categorical variables. values are based on -tests for continuous variables and Fisher’s exact analyses for categorical variables. uan Renminbi, sign ¥, is the official currency of China. Approximate exchange rate 1$ = 6.31¥.