. 2012 Nov-Dec;19(6):973–979. doi: 10.1136/amiajnl-2012-000815

Table 2.

Time-specific means and standard deviations for HbA1c, by DiaTel Extension intervention group

(a) HbA1c (%)	ACM-to-CCHT (n=23)		ACM-to-CC (n=21)		Diff_{ACM-to-CC−ACM-to-CCHT}		p Value for difference
(a) HbA1c (%)	Mean	SD	Mean	SD	Mean	SE	p Value for difference
6 Months	7.77	0.82	7.97	1.41	0.20	0.34	0.57
9 Months	7.93	0.96	8.04	1.34	0.12	0.35	0.74
12 Months	8.03	1.03	8.16	1.03	0.14	0.31	0.67

(b) HbA1c (%)	ACM-to-CC (n=21)		CC-to-CC (n=28)		Diff_{CC-to-CC−ACM-to-CC}		p Value for difference
(b) HbA1c (%)	Mean	SD	Mean	SD	Mean	SE	p Value for difference
6 Months	7.97	1.41	8.56	1.14	0.59	0.36	0.11
9 Months	8.04	1.34	8.53	1.22	0.49	0.37	0.19
12 Months	8.16	1.03	8.71	1.25	0.55	0.34	0.11

(c) HbA1c (%)	CC-to-CC (n=28)		CC-to-UC (n=27)		Diff_{CC-to-UC−CC-to-CC}		p Value for difference
(c) HbA1c (%)	Mean	SD	Mean	SD	Mean	SE	p Value for difference
6 Months	8.56	1.14	8.53	1.18	−0.03	0.31	0.92
9 Months	8.53	1.22	8.87	1.25	0.34	0.33	0.31
12 Months	8.71	1.25	8.84	1.38	0.13	0.35	0.72

p Values are given for tests of time-specific differences between the corresponding pairs of means, ie, ACM-to-CCHT and ACM-to-CC are compared in (a), ACM-to-CC and CC-to-CC are compared in (b), and CC-to-CC and CC-to-UC are compared in (c). The 6-month measurement is from DiaTel; the 9 and 12 months measurements are taken during the DiaTel Extension.

ACM, active care management; CC, care coordination; CCHT, care coordination with continued home telemonitoring; HbA1c, hemoglobin A1c; UC, usual care.