Physical Activity Level and Social-Ecological Influence Factors in Chinese Information Technology Professionals: A Cross-Sectional Study

Table 4

Results of hierarchical regression analyses explaining PA-related factors according to SEM.

Step/predictor variable	R^2 (adjusted)	ΔR^2 (adjusted)	Beta^a	95% CI		F	value
				Lower	Upper
Step 1: individual level	0.08	0.083	—	—	—	27.296
Self-efficacy	—	—	0.118	3.062	21.082	—	—
Value recognition	—	—	0.295	30.033	58.588	—	—
Step 2: interpersonal level	0.089	0.010	—	—	—	20.635
Social support	—-	—	0.015	−15.683	20.871
Step 3: environment level	0.107	0.021	—	—	—	15.454
Facility environment	—	—	−0.13	−34.456	-4.518	—	—
Workplace/community environment	—	—	0.061	−3.219	11.977	—	—
Step 4: political level	0.112	0.007	—	—	—	13.702
Political advocacy	—	—	0.109	2.186	57.325	—	—

^aStandardized regression coefficients.