From: Diabetes prevalence and diagnosis in US states: analysis of health surveys
Variable | Reason for inclusion in analysis | Possible values | OR | (95% CI) |
---|---|---|---|---|
Outcome (dependent) variables for the regression | ||||
Undiagnosed diabetes (available in NHANES; predicted in BRFSS) | Outcome variable to estimate undiagnosed diabetes | 0 (FPG < 126 mg/dL) 1 (FPG ≥ 126 mg/dL) | - | - |
Explanatory (independent) variables | ||||
Sex | Predictor of diabetes, possibly because of differences in lifestyle and health care determinants | Male | 1.0 | - |
Female | 0.47 | 0.29, 0.77 | ||
Age (years) | Predictor of diabetes | 30-39 | 1.0 | - |
40-49 | 1.07 | 0.41, 2.81 | ||
50-59 | 3.25 | 1.41, 7.50 | ||
60-69 | 7.49 | 3.55, 15.82 | ||
≥ 70 | 7.02 | 3.23, 15.26 | ||
Race * | Predictor of diabetes and health care access | Non-Hispanic white | 1.0 | - |
Non-Hispanic black | 1.11 | 0.63, 1.96 | ||
Hispanic | 2.03 | 1.07, 3.83 | ||
Other | 0.26 | 0.03, 1.91 | ||
Doctor visit (have you seen a doctor in the past year?) † | Indicator for diabetes knowledge and control | No | 0.49 | 0.23, 1.05 |
Yes | 1.0 | - | ||
Insurance status (do you currently have health insurance?) | Indicator for diabetes knowledge and control | No | 1.58 | 0.83, 3.02 |
Yes | 1.0 | |||
Missing | 0.76 | 0.07, 8.42 | ||
BMI (kg/m2) ‡ | Determinant of diabetes and indicator for selected lifestyle factors such as diet and physical activity | < 25 | 1.0 | - |
25-29 | 1.85 | 0.93, 3.67 | ||
≥ 30 | 4.29 | 2.25, 8.17 | ||
Smoking (do you now smoke cigarettes?) | Indicator for lifestyle factors | Yes ("everyday" or "some days") | 1.0 | - |
No ("not at all") | 1.27 | 0.65, 2.49 | ||
Missing | 0.86 | 0.51, 1.45 |