Table 2.
Results of Modeling Self-monitoring of Blood Glucose Frequency 6 to 7 Days in Previous Week Versus 3 to 5 Days Versus 1 to 2 Days, Based on Personal and Support Predictor Variables*
| Simple Logistic
Regression |
Multiple Logistic
Regression (N = 508) |
||||||
|---|---|---|---|---|---|---|---|
| Variable | n | Odds Ratio | 95% CI | P | Odds Ratio | 95% CI | P |
| Female vs male | 535 | 1.6 | 1.1, 2.2 | .0069 | 1.4 | 1.0, 2.1 | .053 |
| African American vs white | 535 | 0.91 | 0.62, 1.3 | .64 | 0.76 | 0.50, 1.2 | .22 |
| Native American vs white | 535 | 0.78 | 0.53, 1.2 | .23 | 0.74 | 0.47, 1.2 | .19 |
| Pills only vs no diabetes medication | 535 | 3.2 | 1.7, 6.2 | .0004 | 2.3 | 1.1, 4.6 | .028 |
| Insulin and pills vs no diabetes medication | 535 | 6.5 | 3.2, 13 | <.0001 | 3.3 | 1.5, 7.2 | .0033 |
| Log duration of diabetes | 535 | 1.5 | 1.3, 1.7 | <.0001 | 1.3 | 1.1, 1.6 | .0047 |
| SF-12 Physical Health/10 | 509 | 0.89 | 0.77, 1.0 | .12 | 0.98 | 0.82, 1.2 | .86 |
| SF-12 Mental Health/10† | 509 | 0.83 | 0.71, 0.97 | .018 | 0.85 | 0.71, 1.0 | .062 |
| Shown how to test | 535 | 0.86 | 0.61, 1.2 | .40 | 1.0 | 0.66, 1.6 | .90 |
| Helped to test | 535 | 0.59 | 0.43, 0.83 | .0021 | 0.58 | 0.39, 0.86 | .0068 |
| Helped to understand results | 535 | 0.98 | 0.69, 1.4 | .90 | 0.83 | 0.53, 1.3 | .39 |
| Health care provider recommended | 535 | 5.0 | 3.3, 7.7 | <.0001 | 4.3 | 2.7, 6.8 | <.0001 |
| Attended diabetes class | 534 | 1.8 | 1.2, 2.8 | .0095 | 1.5 | 0.93, 2.5 | .092 |
*
Self-monitoring of blood glucose (SMBG) outcome was analyzed using logistic regression and the proportional odds model among participants who reported SMBG in the previous week.
†
The proportional odds assumption was not satisfied (P < .05) for the simple regression model only.