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. 2016 Aug 5;18(8):e207. doi: 10.2196/jmir.5712

Table 2.

Logistic regression of behaviors at the end of intervention by group with covariates.

Health Behavior	Predictor	β	SE β	Wald’s χ²	dƒ	p	e^β
Fruit Consumption (n=1243)	Constant	−0.836	0.098	72.611	1	<.001^a	0.434
	Baseline	0.543	0.122	19.797	1	<.001^a	1.721
	Location	0.230	0.141	2.657	1	.103	1.259
	Gender	−0.132	0.199	0.441	1	.507	0.876
	Group	0.549	0.133	17.023	1	<.001^a	1.731
	Test			χ²	dƒ	P
	Overall model evaluation			51.919	4	<.001^a

Vegetable Consumption (n=1243)	Constant	−0.357	0.110	10.452	1	<.001^a	0.700
	Baseline	0.984	0.124	62.628	1	<.001^a	2.674
	Location	0.135	0.153	0.774	1	.379	1.144
	Gender	0.217	0.220	0.972	1	.324	1.242
	Group	0.561	0.140	16.025	1	<.001^a	1.753
	Test			χ²	dƒ	P
	Overall model evaluation			98.424	4	<.001^a

Fat Consumption (n=1243)	Constant	0.465	0.134	12.055	1	.001^a	1.593
	Baseline	0.463	0.144	10.332	1	.001^a	1.589
	Location	0.446	0.179	6.215	1	.013^a	1.562
	Gender	0.462	0.271	2.902	1	.088	1.587
	Group	0.510	0.156	10.739	1	.001^a	1.665
	Test			χ²	dƒ	P
	Overall model evaluation			46.373	4	<.001^a

Physical activity (n=1243)	Constant	−0.163	0.113	2.094	1	.148	0.849
	Baseline	0.963	0.121	63.347	1	<.001^a	2.620
	Location	0.009	0.145	0.004	1	.951	1.009
	Gender	0.048	0.203	0.055	1	.815	1.049
	Group	0.094	0.137	0.469	1	.494	1.098
	Test			χ²	dƒ	P
	Overall model evaluation			65.295	4	<.001^a

^a indicates statistical significance (P<.05).