Table 1—

Frequency of SMBG according to patient characteristics (n = 2,855)

Frequency of blood glucose self-testing
P*
≥1/day≥1/week<1/weekNever
Overall patient characteristics
n4718994141,071
 Sex0.04
  Males49.856.553.457.2
 Age (years)61.1 ± 11.262.0 ± 10.263.0 ± 10.463.7 ± 9.60.001
 Education (years)0.001
  ≤557.152.049.345.3
 Living alone0.96
  No88.187.387.087.7
 BMI (men)26.9 ± 4.8 27.1 ± 3.6 27.0 ± 3.5 28.0 ± 3.7 0.001
 BMI (women)27.9 ± 4.9 28.1 ± 5.0 28.6 ± 4.9 28.9 ± 5.4 0.07
 Duration of diabetes (years)12.7 ± 9.0 11.5 ± 8.7 10.7 ± 8.7  8.7 ± 7.6 0.001
 TIBI15.5 ± 13.513.3 ± 12.413.7 ± 13.212.6 ± 12.40.0007
 Treatment0.001
  Diet only5.510.716.227.3
  Oral agents46.164.763.566.4
  Insulin30.714.810.12.7
  Insulin + oral agents17.79.810.23.6
 HbA1c7.5 ± 1.87.4 ± 1.77.3 ± 1.67.0 ± 1.60.0001
 Frequency of hypoglycemic symptoms0.001
  ≥1/week15.96.73.25.8
  ≥1/month31.822.420.411.1
  <1/month–never52.370.974.483.1
 Setting of care0.001
  Diabetes clinic84.582.175.170.6
Insulin-treated patient characteristics
n2122098065
 No. of insulin injections/day0.001
  123.224.437.737.1
  222.133.828.532.3
  >254.741.833.830.6
 Ability to adjust insulin doses0.001
  Yes77.967.550.044.6
  • Data are % for categorical variables and means ± SEM for continuous variables.

  • *

    * χ2 for categorical variables or Kruskall-Wallis one-way analysis of variance for continuous variables.