Table 4.
Regression coefficients for predicting self-management from demographic/disease characteristics for people with type 2 diabetes
| Predictor variable | B (SE) | 95% CI | P-value | β | Adjusted R2 |
|---|---|---|---|---|---|
| (A) White-British | |||||
| Overall DSM (N = 136) | 0.10 | ||||
| Age | 0.025 (0.01) | 0.01, 0.04 | 0.001 | 0.28 | |
| Tablet vs diet | 0.09 (0.26) | −0.42, 0.60 | 0.73 | 0.04 | |
| Insulin vs diet | 0.65 (0.29) | 0.08, 1.23 | 0.03 | 0.25 | |
| Diet (N = 136) | 0.03 | ||||
| Age | 0.03 (0.01) | 0.00, 0.05 | 0.04 | 0.18 | |
| Gender | 0.37 (0.32) | −0.27, 1.00 | 0.25 | 0.10 | |
| Exercise (N = 131) | 0.02 | ||||
| Duration of diabetes | −0.03 (0.03) | −0.10, 0.03 | 0.27 | −0.12 | |
| Tablet vs diet | −0.11 (0.55) | −1.21, 0.99 | 0.84 | −0.02 | |
| Insulin vs diet | −0.67 (0.72) | −2.09, 0.76 | 0.36 | 0.13 | |
| SMBG (N = 129) | 0.21 | ||||
| Duration of diabetes | −0.02 (0.03) | −0.08, 0.05 | 0.63 | −0.05 | |
| Tablet vs diet | 0.19 (0.55) | −0.91, 1.28 | 0.74 | 0.04 | |
| Insulin vs diet | 2.82 (0.72) | 1.40, 4.25 | <0.001 | 0.49 | |
| Marital status | −0.71 (0.40) | −1.50, 0.07 | 0.08 | −0.14 | |
| (B) Black-Caribbean | |||||
| Overall DSM (N = 121) | 0.11 | ||||
| Age | 0.02 (0.01) | 0.01, 0.04 | 0.01 | 0.23 | |
| Number of years lived in UK | −0.37 (0.16) | −0.69, −0.05 | 0.02 | −0.20 | |
| Tablet vs food and exercise | −0.81 (0.62) | −2.04, 0.42 | 0.19 | −0.30 | |
| Insulin vs food and exercise | −0.38 (0.64) | −1.64, 0.88 | 0.55 | −0.14 | |
| Diet (N = 121) | 0.05 | ||||
| Age | 0.04 (0.01) | 0.01, 0.07 | <0.01 | 0.26 | |
| Gender | 0.00 (0.33) | −0.65, 0.66 | 0.99 | 0.00 | |
| Exercise (N = 121) | 0.12 | ||||
| Age | 0.02 (0.02) | −0.02, 0.05 | 0.33 | 0.09 | |
| Gender | −1.06 (0.39) | −1.83, −0.28 | 0.01 | −0.23 | |
| Number of years lived in UK | −0.69 (0.27) | −1.23, −0.15 | 0.01 | −0.22 | |
| Tablet vs diet | v1.56 (1.06) | −3.65, 0.53 | 0.14 | −0.34 | |
| Insulin vs diet | −2.11 (1.08) | −4.25, 0.41 | 0.05 | −0.45 | |
| SMBG (N = 116) | 0.24 | ||||
| Age | 0.02 (0.02) | −0.02, 3.89 | 0.42 | 0.07 | |
| Gender | 0.91 (0.44) | 0.04, 1.78 | 0.04 | 0.17 | |
| Duration of diabetes | 0.03 (0.03) | −0.04, 0.10 | 0.37 | 0.09 | |
| Tablet vs diet | −0.08 (1.33) | −2.71, 2.55 | 0.95 | −0.02 | |
| Insulin vs diet | 2.12 (1.39) | −0.63, 4.87 | 0.13 | 0.39 | |
| (C) Black-Africans | |||||
| Diet (N = 96) | 0.05 | ||||
| Age | 0.02 (0.02) | −0.02, 0.05 | 0.30 | 0.11 | |
| College/sixth form vs primary/secondary school | −1.31 (0.49) | −2.28, −0.34 | 0.01 | −0.36 | |
| University vs primary/secondary school | −1.15 (0.52) | −2.17, −0.13 | 0.03 | −0.30 | |
| SMBG (N = 96) | 0.08 | ||||
| Duration of diabetes | 0.01 (1.06) | −0.10, 0.12 | 0.88 | 0.02 | |
| College/sixth form vs primary/secondary school | 0.22 (0.67) | −1.11, 1.55 | 0.74 | 0.04 | |
| University vs primary/secondary school | 1.08 (0.70) | −0.31, 2.46 | 0.13 | 0.21 | |
| Tablet vs diet | 0.86 (0.98) | −1.08, 2.81 | 0.38 | 0.17 | |
| Insulin vs diet | 2.26 (1.15) | −0.02, 4.54 | 0.05 | 0.41 | |
Abbreviations: B, regression co-efficient; CI, confidence interval; DSM, Diabetes Self-Management; SE, standard error; SMBG, self-monitoring of blood glucose; β, standardized regression co-efficient; vs, versus; R2, proportion of variance explained by model.