Table 3—

Mean HbA_1c and difference as determined by mixed effects analysis

Time	Intervention (%)	Control (%)	Difference	P value*
n	171	146
Baseline	9.54 ± 0.12	9.66 ± 0.13	−0.12	0.51
6 months	8.29 ± 0.12	8.94 ± 0.15	−0.65	<0.01
12 months	8.17 ± 0.11	8.86 ± 0.14	−0.69	<0.01
18 months	8.11 ± 0.11	8.82 ± 0.13	−0.71	<0.01
24 months	7.92 ± 0.13	8.70 ± 0.15	−0.78	<0.01
30 months	7.85 ± 0.14	8.66 ± 0.15	−0.80	<0.01
36 months	7.66 ± 0.17	8.53 ± 0.20†	−0.87	<0.01

*
↵* P values are applied to HbA_1c differences between the intervention and control groups.
†
↵† The respective drops in the 36-month HbA_1c compared with the baseline HbA_1c in both the intervention group and the control group of 1.88 and 1.13% are statistically significant.