Table 3.

Associations between reported frequency of blood glucose monitoring per day and A1c values.

How many blood glucose checks/day provider suggested	Unadjusted		Adjusted for Age and Insulin Regimen
	N	Mean A1c ± SE	N	Mean A1c ± SE
≥6/day	78	8.34 ± 0.18 a	77	8.42 ± 0.20 a
4–5/day	235	8.87 ± 0.11	234	8.85 ± 0.11
<4/day	28	9.98 ± 0.35	28	9.76 ± 0.32
p-value for trend		<.001		.002
How many blood glucose checks/day reported	N	Mean A1c ± SE	N	Mean A1c ± SE
≥6/day	91	8.04 ± 0.14b,c,d	90	8.07 ± 0.19b,c,d
4–5/day	172	8.76 ± 0.12c	172	8.71 ± 0.12c
2–3/day	60	9.88 ± 0.25	60	9.80 ± 0.21
<2/day	21	9.53 ± 0.45	20	9.51 ± 0.36
p-value for trend		<.001		<.001

^aall groups significantly different from one another

^bsignificantly different from 4–5/day

^csignificantly different from 2–3/day

^dsignificantly different from <2/day