Table 2.
Differences in terms of level of accuracy: profile, control and management factors (patients not using insulin), n = 85.
| Underestimators (n = 37) | Accurate (n = 36) | Overestimators (n = 12) | F/χ2 | P-value | |
|---|---|---|---|---|---|
| Profile | |||||
| Management | |||||
| Diet only (%) | 13 (35.1) | 12 (33.3) | 3 (25) | 4.12 | 0.390 |
| Tablet (%) | 24 (64.8) | 24 (66.7) | 9 (75) | ||
| Age, years (CI) | 66.40 (62.5 to 69.2) | 64.59 (61.0 to 69.2) | 62.83 (55.9 to 69.8) | 0.576 | 0.750 |
| Sex | |||||
| Male (%) | 19 (51.3) | 23 (63.8) | 10 (83.3) | ||
| Female (%) | 18 (54.5) | 13 (36.1) | 2 (16.6) | 3.042 | 0.081 |
| Time since diagnosis, years (CI) | 4.13 (2.8 to 5.1) | 5.75 (3.7 to 7.2) | 5.25 (2.7 to 7.7) | 1.424 | 0.491 |
| Control | |||||
| Measured glucose (CI) | 11.31 (10.1 to 12.3) | 7.78 (7.2 to 8.3) | 8.13 (5.4 to 10.7) | 29.980 | 0.001 |
| HbA1C mean, last 2 years (CI) | 7.95 (7.5 to 8.4) | 7.36 (7.0 to 7.8) | 7.56 (6.5 to 8.6) | 4.145 | 0.126 |
| HbA1C, most recent (CI) | 7.88 (7.5 to 8.2) | 7.40 (6.9 to 7.8) | 7.87 (6.6 to 9.1) | 3.875 | 0.144 |
| Management | |||||
| Home testing (%) | 12 (32.4) | 14 (38.8) | 2 (16.6) | 16.011 | 0.001 |
| Strips per month, users only (CI) | 4.31(1.7 to 6.5) | 8.12 (1.9 to 14.8) | 0.83 (−0.65 to 2.3) | 2.674 | 0.263 |
| State at clinic (%) | 26 (70.2) | 29 (74.5) | 6 (50.0) | ||
| Random (%) | 11 (29.7) | 7 (19.4) | 6 (50.0) | 12.895 | 0.001 |