Developmental trajectories of physical activity and television viewing during adolescence among girls: National Growth and Health Cohort Study

Table 4 Probabilities of TV viewing trajectory groups conditional on PA trajectory groups. National Growth and Health Study

	TV Group 1	TV Group 2	TV Group 3	TV Group 4	Total
			%
All PA groups	10.4	27.0	35.3	27.3	100
PA group 1	1.6	29.8	43.0	27.2	100
PA group 2	17.3	39.5	31.7	11.4	100
PA group 3	45.6	42.1	7.5	4.8	100
PA group 4	0.0	13.8	42.1	44.0	100

Note. PA physical activity, TV television
The probabilities above were estimated from a dual-trajectory analysis of physical activity and television viewing behaviors
PA group label: 1 = substantially decreasing from high PA; 2 = maintaining moderate PA; 3 = maintaining high PA; 4 = decreasing from moderate PA
TV group label: 1 = decreasing from moderate TV viewing; 2 = decreasing from high TV viewing; 3 = increasing from moderate TV viewing; 4 = increasing from high TV viewing

ISSN: 1471-2458