Long-term efficacy of a Web-based computer-tailored nutrition education intervention for adults including cognitive and environmental feedback: a randomized controlled trial

Table 5 Results general linear mixed models for secondary outcome measures

					P-value	B [95% CI]^a	ES^b
Self-regulation
	Type III tests total sample (n = 1348)
		Group x time x education^c			.88	–	–
		Group x time^d			.04^*	–	–
		Time^e			<.001^*	–	–
			Differences over time between groups
				Basic vs. control^d	.02^*	−0.16 [−0.29, −0.02]	−0.18
				Plus vs. control^d	.04^*	−0.14 [−0.17, −0.004]	−0.16
				Plus vs. basic^d	.81	0.02 [−0.12, 0.15]	0.02
Self-control
	Type III tests total sample (n = 1348)
		Group x time x education^c			.29	–	–
		Group x time^d			.29	–	–
		Time^e			<.001*	–	–
BMI
	Type III tests total sample (n = 1347)
		Group x time x education^c			.22	–	–
		Group x time^d			.17	–	–
		Time^e			.01^*	–	–
	Type III tests risk group (n = 682)
		Group x time x education^c			.64	–	–
		Group x time^d			.30	–	–
		Time^e			<.001^*	–	–

^aB = Unstandardized regression coefficient for difference between groups in change over time; ^bES = Effect size; ^cBased on linear mixed model including place of residence, age, education, study group, time, ‘group X time’, ‘time X education’, ‘group X education’ and ‘group X time X education’; ^dBased on linear mixed model including place of residence, age, education, study group, time, ‘group X time’; ^e Based on linear mixed model including place of residence, age, education, study group, time; ^*Significant at p ≤ .05.

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