Table 2 Test–retest reliability of the Diabetes Health Profile-18 subdimensions overall, and considering a reported change in global assessment of health
Global assessment of health | N | Baseline, mean (sd) | Retest, mean (sd) | Mean differences (sd) | ES | Minimally important difference | SDCind | SDCgru | ICC (95%CI) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
0.2SD | 0.5SD | 1SEM | |||||||||
PD | |||||||||||
Stayed the same | 39 | 22.4 (16.3) | 21.5 (13.7) | 0.8 (11.9) | 0.05 | 3.27 | 8.17 | 8.43 | 23.37 | 2.65 | 0.69 (0.48–0.83) |
Worse | 15 | 28.9 (17.7) | 26.3 (17.5) | 2.6 (10.9) | 0.14 | 3.54 | 8.86 | 7.70 | 21.33 | 3.89 | 0.81 (0.53–0.93) |
Better | 21 | 33.9 (23.2) | 31.7 (24.8) | 2.1 (20.6) | 0.09 | 4.65 | 11.61 | 14.56 | 40.37 | 6.23 | 0.64 (0.30–0.84) |
Total | 75 | 26.9 (19.2) | 25.3 (18.5) | 1.5 (14.5) | 0.08 | 3.84 | 9.59 | 10.26 | 28.45 | 2.32 | 0.70 (0.57–0.80) |
BA | |||||||||||
Stayed the same | 39 | 35.2 (15.7) | 37.8 (20.4) | − 2.6 (17.6) | 0.17 | 3.14 | 7.84 | 10.01 | 27.75 | 2.59 | 0.66 (0.50–0.79) |
Worse | 15 | 49.3 (13.2) | 56.7 (19.2) | − 7.4 (19.3) | 0.56 | 2.63 | 6.58 | 11.38 | 31.55 | 4.81 | 0.22 (− 0.06,0.58) |
Better | 21 | 40.1 (20.1) | 43.5 (24.3) | − 3.4 (20.1) | 0.17 | 4.01 | 10.03 | 11.60 | 32.16 | 4.05 | 0.71 (0.51,0.86) |
Total | 75 | 39.4 (17.2) | 43.2 (22.3) | − 3.8 (18.3) | 0.22 | 3.45 | 8.61 | 12.67 | 29.57 | 1.99 | 0.67 (0.56–0.77) |
DE | |||||||||||
Stayed the same | 39 | 30.0 (19.0) | 32.1 (21.1) | − 2.1 (19.9) | 0.11 | 3.80 | 9.51 | 11.70 | 32.42 | 3.04 | 0.66 (0.50–0.80) |
Worse | 15 | 41.8 (18.6) | 37.3 (20.4) | 4.4 (13.9) | 0.24 | 3.72 | 9.3 | 8.06 | 22.33 | 3.33 | 0.82 (0.64–0.93) |
Better | 21 | 40.3 (20.4) | 39.4 (25.1) | 0.9 (18.6) | 0.05 | 4.08 | 10.19 | 10.76 | 29.85 | 3.76 | 0.77 (0.59–0.89) |
Total | 75 | 35.3 (19.8) | 35.2 (22.1) | 0.1 (18.5) | 0.003 | 3.97 | 9.92 | 10.74 | 29.78 | 2.00 | 0.73 (0.64–0.81) |