. Author manuscript; available in PMC: 2014 Nov 1.

Published in final edited form as: J Acad Nutr Diet. 2013 Jul 19;113(11):10.1016/j.jand.2013.05.022. doi: 10.1016/j.jand.2013.05.022

Table 1.

Baseline (1985-86) sample characteristics of adults with or without children at year 7 (1992-93), CARDIA study

	Children (n = 914)^a	No Children (n = 1967)
	Mean ± SD	Mean ± SD
Age at Baseline (yrs)	24.8 ± 3.5	24.2 ± 3.6**
Physical activity score (Exercise Units) ^b	439 ± 283	444 ± 292
Years of Education completed	14.4 ± 2.4	14.4 ± 2.2
BMI	24.1 ± 4.4	24.0 ± 4.6
Calories per day	2688±1285	2738±1264
	%	%

Female (%) ^*	55.0	50.2^*
Race / Ethnicity (%) ^*
Caucasian	59.4	64.1^*
African American	40.6	35.9
Living with Partner (%) ^*** ^c	36.3	15.8**
Working Full Time (%) ^***	65.0	56.9**
Smoking (%)	23.5	23.8**

p≤ 0.05 for comparison of those with and without children

^***

p ≤ 0.001 for comparison of those with and without children

Children in the home at year 7

Physical Activity score = intensity × frequency = Σbi * (P2i+2*P3i) where bi = the intensity level of the activity in METS, P2i = number of months doing an activity and P3i = the number of months doing the activity above a specified frequency.

Living with partner = married or living as married at baseline