Table 2

Descriptive statistics (N = 14,689)
Variable Definition Mean/proportion Standard deviation
Residential walkability and weight measures
RESWALK Factor score for neighbourhood walkability −0.24 0.98
BMI Weight in kg divided by height in meters squared 24.27 4.88
BMIBG ≥ 25 Proportion of the women with a BMI > 25.0 0.32 0.47
    D
Variables (Exogenous): Hypothesized to affect BMI and residential walkability
AGE Age in years 25.58 3.98
EDUC Years of schooling 13.93 1.88
MARRIED 1 = married 0.89
BMIYR Year of pregnancy (1 = 1995… 11 = 2005) 6.02 3.12
SIBBMI Average age and year standardized sibling BMI residual −0.03 0.71
    Z
Variables hypothesized to affect residential walkability only
NSCHOOL Number of schools 0.61 0.90
NCHURCH Number of churches 0.91 0.87
LIBRARY Presence of one or more public libraries (1 = yes) 0.04 0.21
UNDER16 Proportion of the population ≤ Age 15 0.24 0.08

Zick et al.

Zick et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:27   doi:10.1186/1479-5868-10-27

Open Data