Skip to main content

Table 2 HbA1c levels (mmol/mol) at different time points and estimated changes between and within groups

From: Effects of three frequencies of self-monitored blood glucose on HbA1c and quality of life in patients with type 2 diabetes with once daily insulin and stable control: a randomized trial

SMBG frequency

Baseline

3 months

6 months

9 months

Estimated changes within groupsa

Weekly (A)

51.1 ± 4.7

52.1 ± 5.4

52.2 ± 5.0

54.4 ± 6.8

3.32 (− 1.38, 8.01)

Every 2 weeks (B)

51.6 ± 4.6

51.3 ± 7.8

50.2 ± 5.8

53.1 ± 5.8

1.50 (− 4.01, 7.01)

Monthly (C)

51.2 ± 5.6

51.1 ± 5.6

50.2 ± 9.0

51.8 ± 6.6

0.60 (− 4.33, 5.53)

Time (months)

Groupsb

B minus A

C minus A

C minus B

3

− 0.62 (− 4.83, 3.59)

− 1.16 (− 5.10, 2.79)

− 0.53 (− 4.83, 3.77)

6

− 2.40 (− 7.31, 2.51)

− 2.51 (− 7.12, 2.10)

− 0.11 (− 5.02, 4.80)

9

− 1.72 (− 5.60, 2.17)

− 2.70 (− 6.35, 0.95)

− 0.98 (− 4.94, 2.98)

  1. Data are mean ± SD, estimated changes (95% CI, Bonferroni corrected). All p values > 0.05
  2. aFrom baseline to 9 months
  3. bEstimated changes between groups adjusted for baseline differences