Longitudinal, cross-cohort comparison of physical activity patterns in Chinese mothers and children

Table 1 Baseline characteristics of mother-child pairs by cohort ^1,2

	2000 Cohort	2004 Cohort
Survey years	2000, 2004	2004, 2006
N	167	186
Child’s gender, % male	55.7	51.1
Child’s age, y*	7.4 ± 0.9	8.4 ± 0.9
Mother’s age, y*	32.8 ± 3.5	34.6 ± 3.8
Mother’s education, %
None/primary school	52.5	42.5
Middle school	34.4	41.3
High school	8.7	8.4
College, technical or higher	4.4	7.8
Annual household income, yuan^3*	16045 ± 14267	20740 ± 18733
Household residence, % rural	76.7	76.3

China Health and Nutrition Survey.^1,2
*Different between cohorts, P < 0.001.
¹Values are mean ± SD or percentage.
²Data were missing for mother’s age (n = 11), mother’s education (n = 14), and household income (n = 10).
³Annual household income inflated to 2006 yuan currency values.

ISSN: 1479-5868