Table 3.
Logistic Regression Models for Factors Associated With Self-Reported Physician-Diagnosed Prediabetes in Adults Participating in Diabetes Awareness Program, New York State, 2006
| Variable | Model With Demographic Controlsa | Best Fit Modelb | ||
|---|---|---|---|---|
|
| ||||
| OR (95% CI) | P value | OR (95% CI) | P value | |
| Family history of diabetes | ||||
| Yes | 3.56 (2.61-4.85) | <.001 | 3.65 (2.70-4.92) | <.001 |
| No | 1 [Reference] | 1 [Reference] | ||
| Body mass index, kg/m2 | ||||
| ≥25 | 2.78 (1.94-3.97) | <.001 | 2.79 (1.96-3.97) | <.001 |
| <25 | 1 [Reference] | 1 [Reference] | ||
| Age, y | ||||
| ≥45 | 3.14 (2.12-4.64) | <.001 | 2.77 (1.91-4.00) | < .001 |
| <45 | 1 [Reference] | 1 [Reference] | ||
| Health care coverage | ||||
| Yes | 2.32 (1.28-4.22) | .006 | 2.38 (1.35-4.18) | .003 |
| No | 1 [Reference] | 1 [Reference] | ||
| Racec | ||||
| Non-Hispanic white | 0.96 (0.96-1.77) | .90 | — | |
| Non-Hispanic black | 0.44 (0.20-0.99) | .048 | ||
| Hispanic | 0.55 (0.22-1.34) | .19 | ||
| American Indian | 3.63 (1.63-9.09) | .001 | ||
| All other | 1 [Reference] | — | ||
| Sexc | ||||
| Male | 1.22 (0.86-1.73) | .66 | — | |
| Female | 1 [Reference] | |||
a
The Hosmer-Lemeshow goodness-of-fit test was used to assess overall fit (χ28 = 10.9, P = .21).
b
The Hosmer-Lemeshow goodness-of-fit test was used to assess overall fit (χ27 = 2.2, P = .95).
c
Race and sex were removed in the best fit model through the backward stepwise selection method. These variables were found to be nonsignificant based on the probability of a likeihood-ratio statistic.