Multiple Linear Regression Coefficients (P)* for Minutes Spent on Daily Foot Care, Exercise, Food Shopping/Preparation and Total Time Spent by Patients Spending Any Time on Each Activity
| Contrast | Foot Care (P)† | Exercise (P) | Food Shopping/Preparation (P) | Total Time Spent (P) |
|---|---|---|---|---|
| Age | ||||
| <45 vs >65 years | −3.7 (.02) | 3.9 (.26) | −9.5 (.08) | −6.9 (.22) |
| 45 to 54 vs >65 years | −1.3 (.33) | 5.0 (.10) | −7.4 (.14) | 0.6 (.90) |
| Sex: male vs female | 0 (.98) | 5.5 (<.01) | −1.4 (.66) | −5.6 (.07) |
| Body mass index >40 vs 30 to 34 kg/m2 | −2.6 (.06) | −8.0 (.02) | 9.3 (.09) | −11.6 (.02) |
| Amputees vs non-amputees | 11.4 (<.01) | 1.1 (.84) | −11.7 (.14) | 16.2 (.09) |
| Foot neuropathy: no symptoms vs most | −2.3 (.07) | −2.6 (.34) | 3.2 (.50) | −4.5 (.35) |
| Physical functioning | ||||
| Best vs worst quartile | −3.8 (<.01) | 7.1 (.02) | 1.1 (.83) | 0.50 (.92) |
| Second best vs worst quartile | −4.1 (<.01) | 0.8 (.76) | 3.0 (.50) | 0.1 (.99) |
| Third best vs worst quartile | −2.8 (.02) | −3.2 (.24) | 4.0 (.35) | 0.8 (.85) |
| Self-testing | ||||
| Never vs >2 times daily | −3.5 (<.01) | −3.6 (.19) | −5.7 (.21) | −29.9 (<.01) |
| Rarely (<daily) vs >2 times daily | −2.6 (.02) | −3.8 (.10) | −9.1 (.01) | −26.8 (<.01) |
| Education | ||||
| >4 years college vs <high school | −2.8 (.02) | −2.7 (.27) | −7.0 (.11) | −6.8 (.10) |
| Income | ||||
| >$75,000 vs $40 to 75,000 | −3.5 (<.01) | −3.0 (.21) | −3.6 (.43) | −5.9 (.15) |
| Race/ethnicity | ||||
| White vs African Americans | −4.2 (<.01) | −4.3 (.05) | −7.7 (.03) | −15.1 (<.01) |
| Other races vs African Americans | −0.05 (.72) | −5.2 (.08) | 9.5 (.04) | −3.1 (.52) |
* Coefficients in bold had P <.05.
† Each column presents results of separate linear regression models including age, sex, body mass index, diabetes duration, amputation status, neuropathy symptom score, Physical Component Summary-12 quartile, Mental Component Summary-12 quartile, diabetes treatment, self-testing frequency, education, income and race/ethnicity. Only predictors with significant findings on at least one element are presented.