Table 2.
Univariate and Multivariate Analysis of Odds of Diabetes Prevention Program Referral by Patient Characteristics and Control Group
| Variable | All | FM control | GIM control | |||
|---|---|---|---|---|---|---|
| OR (95% CI) | p-value | OR (95% CI) | p-value | OR (95% CI) | p-value | |
| Intervention | 3.82 (0.51, 28.80) | 0.14a | 2.51 (0.37, 17.17) | 0.23b | 12.14 (0.79, 187.77) | 0.059c |
| Age: 10-year increase | 0.89 (0.81, 0.99) | 0.037 | 0.90 (0.79, 1.02) | 0.072 | 0.90 (0.74, 1.10) | 0.16 |
| BMI: 5-unit increase | 1.15 (1.07, 1.23) | 0.005 | 1.15 (1.07, 1.24) | 0.009 | 1.16 (1.04, 1.28) | 0.023 |
| Female vs male | 1.63 (0.98, 2.72) | 0.057 | 1.57 (0.91, 2.68) | 0.077 | 1.53 (0.62, 3.78) | 0.18 |
| Race: Black vs white | 0.58 (0.32, 1.04) | 0.062 | 0.59 (0.32, 1.09) | 0.073 | 0.63 (0.30, 1.34) | 0.12 |
| Race: Others vs white | 0.61 (0.15, 2.51) | 0.39 | 0.40 (0.04, 3.59) | 0.27 | 0.73 (0.052, 10.05) | 0.65 |
| HbA1c location: POC vs lab | 1.65 (1.05, 2.58) | 0.037 | 1.59 (0.91, 2.78) | 0.078 | 1.80 (0.75, 4.34) | 0.10 |
| HbA1c: 0.5-unit increase | 1.82 (1.08, 3.07) | 0.033 | 1.84 (0.90, 3.73) | 0.072 | 1.83 (0.61, 5.43) | 0.14 |
| Insurance pay for DPP: yes vs no Adjusted modeld | 1.49 (0.96, 2.33) | 0.067 | 1.52 (0.89, 2.61) | 0.088 | 1.69 (0.87, 3.30) | 0.077 |
| Intervention | 3.85 (0.40, 36.87) | 0.17 | 2.48 (0.25, 24.43) | 0.29 | 13.62 (0.55, 335.65) | 0.073 |
Notes: Boldface indicates statistical significance (p<0.05).
2,992 observations are used in this analysis. Intraclass correlation coefficient (ICC) is 0.10 for outcomes from subjects having the same provider. The estimate is 0.02 for outcomes from subjects having the same team but different provider.
2,006 observations are used in the analysis restricted to the FM clinic. The ICC is 0.11 for outcomes from subjects having the same provider. The estimate is 0.005 for outcomes from subjects having the same team but different provider.
2,248 observations are used in the analysis restricted to the intervention clusters and the GIM clinic control cluster. The ICC is 0.12 for outcomes from subjects having the same provider. The estimate is 0.01 for outcomes from subjects having the same team but different provider.
Adjusted model includes age, BMI, sex, race, HbA1c value, HbA1c location, and insurance payment for DPP. 2,829, 1,916, and 2,125 observations are used for all locations, FM, and GIM, respectively.
FM, Family Medicine Clinic; GIM, General Internal Medicine; POC, point of care test.