Table 6.

Total METs for girls from South Carolina from final model with constant or changing level of family support over time, and fixed values of perceived behavioral control and self-efficacy (1998–2003)

	Family Support			Total METs
	Eighth grade	Ninth grade	Twelfth grade	Eighth grade	Ninth grade	Twelfth grade
Family support	Black girls
Remained low	0.80	0.80	0.80	61.05	61.46	62.69
Increased	0.80	1.53	2.40	61.05	62.77	65.57
Decreased	2.40	1.53	0.80	63.93	62.77	62.69
Remained high	2.40	2.40	2.40	63.93	64.34	65.57
	White girls
Remained low	0.80	0.80	0.80	65.35	64.76	62.99
Increased	0.80	1.53	2.40	65.35	66.07	65.87
Decreased	2.40	1.53	0.80	68.23	66.07	62.99
Remained high	2.40	2.40	2.40	68.23	67.64	65.87

Total METs= 52.4 −4.3 Race + 1.8 Family support + 1.5 perceived behavioral control + 1.0 Self-efficacy −0.59 Time + 1.0 Race*time.

Values for family support are pooled values over 3 time points (0.80=25^th percentile, 1.53=50^th percentile and 2.40=75^th percentile), perceived behavioral control=4.75 (75^th percentile of pooled values from 3 time points), and self-efficacy=4.38 (75^th percentile of pooled values from 3 time points).

Race, 0=White, 1=Black