. 2021 Feb 23;23(2):e18524. doi: 10.2196/18524

Table 2.

Results of linear mixed regression analysis on multiple imputed data sets: unadjusted and adjusted model.

Linear mixed regression analysis		Regression coefficient (Cohen d)	95% CI	t test (df)	P value
Unadjusted model (trial group)
	Intervention group	.27	0.032 to 0.509	2.229 (306.60)	.03
	Control group^a	N/A^b	N/A	N/A	N/A
Adjusted model (trial group)
	Intervention group	0.25	0.010 to 0.495	2.05 (302.34)	.04
	Control group^a	N/A	N/A	N/A	N/A
BMI		−0.01	−0.032 to 0.014	−0.78 (558.01)	.43
Recruitment nurse
	Practice nurse	−0.05	−0.370 to 0.271	−0.31 (223.18)	.76
	Diabetes nurse^a	N/A	N/A	N/A	N/A
Diabetes medication type
	OHA^c only	0.01	−0.182 to 0.375	0.68 (454.77)	.50
	Insulin therapy only	−0.06	−0.572 to 0.451	−0.23 (288.59)	.82
	OHA and insulin therapy^a	N/A	N/A	N/A	N/A
	HbA_1c^d	0.01	−0.005 to 0.019	1.19 (195.41)	.23
Depression status
	Never or in the past	0.12	−0.650 to 0.407	−0.45 (307.75)	.65
	Current^a	N/A	N/A	N/A	N/A
Gender
	Male	−0.10	−0.381 to 0.174	−0.73 (259.33)	.46
	Female^a	N/A	N/A	N/A	N/A
	Age (years)	−0.01	−0.030 to 0.016	−0.59 (354.14)	.56
Work status
	Salaried or self-employed	−0.41	0.818 to 0.004	−1.95 (321.68)	.05
	No salaried employment	−0.56	−1.049 to −0.077	−2.28 (277.27)	.02
	Retired	−0.28	−0.733 to 0.167	−1.24 (319.11)	.22
	Disabled or incapacitated^a	N/A	N/A	N/A	N/A
Living arrangement
	Together with a partner	0.22	−0.082 to 0.522	−1.43 (291.29)	.15
	Alone^a	N/A	N/A	N/A	N/A
Education level
	Low	−0.37	−0.668 to −0.069	−2.42 (261.03)	.02
	Middle	−0.01	−0.308 to 0.288	−0.07 (602.33)	.95
	High^a	N/A	N/A	N/A	N/A
Net income
	Under-average income	0.28	−0.095 to 0.659	1.48 (147.14)	.14
	Above-average income^a	N/A	N/A	N/A	N/A

^aReference category.

^bN/A: not applicable.

^cOHA: oral hypoglycemic agent.

^dHbA_1c: glycosylated hemoglobin.