Bivariate and adjusted odds of accurately knowing one’s most recent HbA1c value
| . | % . | Odds ratios (95% CI) . | . | |
|---|---|---|---|---|
| . | . | Unadjusted . | Adjusted for other patient characteristics . | |
| Race | ||||
| White | 27 | Referent | Referent | |
| Black | 19 | 0.65 (0.37–1.11) | 0.51 (0.22–1.18) | |
| Latino | 8 | 0.23 (0.18–0.65) | 0.51 (0.14–1.48) | |
| Other | 37 | 1.65 (0.84–3.25) | 1.21 (0.55–2.67) | |
| Education | ||||
| Less than high school | 7 | Referent | Referent | |
| High school | 22 | 3.49 (1.74–6.99) | 2.37 (1.09–5.15) | |
| Some college | 36 | 6.91 (3.65–13.1) | 3.72 (1.78–7.78) | |
| Annual income | ||||
| <$10,000 | 13 | Referent | Referent | |
| $10,001–30,000 | 20 | 1.62 (0.90–2.90) | 1.11 (0.55–2.23) | |
| >$30,000 | 40 | 4.39 (2.43–8.02) | 1.81 (0.86–3.82) | |
| Diabetes duration | ||||
| ≤3 years | 25 | Referent | Referent | |
| ≥4 years | 26 | 1.10 (0.61–1.52) | 1.32 (0.78–2.29) | |
| Medications | ||||
| Oral only | 26 | Referent | Referent | |
| Insulin ± oral | 21 | 0.75 (0.48–1.14) | 0.87 (0.50–1.51) | |
| No medications | 30 | 1.22 (0.60–2.49) | 0.82 (0.34–2.01) | |
| Health system | ||||
| AMC | 36 | Referent | Referent | |
| VA | 16 | 0.35 (0.23–0.53) | 0.55 (0.33–0.92) | |
| Inner-city | 14 | 0.29 (0.16–0.52) | 0.70 (0.26–1.89) | |
| Whether diabetes doctor answers questions fully | ||||
| Did not strongly agree | 21 | Referent | Referent | |
| Strongly agree | 30 | 1.55 (1.05–2.29) | 1.60 (1.03–2.48) | |
| . | % . | Odds ratios (95% CI) . | . | |
|---|---|---|---|---|
| . | . | Unadjusted . | Adjusted for other patient characteristics . | |
| Race | ||||
| White | 27 | Referent | Referent | |
| Black | 19 | 0.65 (0.37–1.11) | 0.51 (0.22–1.18) | |
| Latino | 8 | 0.23 (0.18–0.65) | 0.51 (0.14–1.48) | |
| Other | 37 | 1.65 (0.84–3.25) | 1.21 (0.55–2.67) | |
| Education | ||||
| Less than high school | 7 | Referent | Referent | |
| High school | 22 | 3.49 (1.74–6.99) | 2.37 (1.09–5.15) | |
| Some college | 36 | 6.91 (3.65–13.1) | 3.72 (1.78–7.78) | |
| Annual income | ||||
| <$10,000 | 13 | Referent | Referent | |
| $10,001–30,000 | 20 | 1.62 (0.90–2.90) | 1.11 (0.55–2.23) | |
| >$30,000 | 40 | 4.39 (2.43–8.02) | 1.81 (0.86–3.82) | |
| Diabetes duration | ||||
| ≤3 years | 25 | Referent | Referent | |
| ≥4 years | 26 | 1.10 (0.61–1.52) | 1.32 (0.78–2.29) | |
| Medications | ||||
| Oral only | 26 | Referent | Referent | |
| Insulin ± oral | 21 | 0.75 (0.48–1.14) | 0.87 (0.50–1.51) | |
| No medications | 30 | 1.22 (0.60–2.49) | 0.82 (0.34–2.01) | |
| Health system | ||||
| AMC | 36 | Referent | Referent | |
| VA | 16 | 0.35 (0.23–0.53) | 0.55 (0.33–0.92) | |
| Inner-city | 14 | 0.29 (0.16–0.52) | 0.70 (0.26–1.89) | |
| Whether diabetes doctor answers questions fully | ||||
| Did not strongly agree | 21 | Referent | Referent | |
| Strongly agree | 30 | 1.55 (1.05–2.29) | 1.60 (1.03–2.48) | |
The multivariable logistic models included all the variables listed in the table and also adjusted for patients’ age, sex, number of outpatient visits, and having a regular doctor, none of which were associated with knowing one’s most recent HbA1c. Accurately knowing one’s last HbA1c was defined as accurately reporting (within a ±0.5 range) one’s last HbA1c value.