Table 1 Sample differences between Oasis practices and control practices
Variable | Mean values for Oasis practices | Mean values for control practices | Difference in mean values | P value of diff. |
|---|---|---|---|---|
Practice characteristics | ||||
Number of dentists | 4.11 | 3.21 | 0.89 | P<0.01 |
Regional deprivation (IMD) | 19.8 | 21.2 | −1.41 | P<0.01 |
Monthly number of treatment items | 811 | 922 | −110 | P<0.01 |
Monthly number of treatment courses | 463 | 392 | 71 | P<0.01 |
Monthly number of registrations | 3850 | 3359 | 490 | P<0.01 |
Monthly number of patients seen | 320 | 306 | 14.4 | 0.15 |
Case-mix | ||||
% of registered patients age 60 and above | 13.3 | 15.3 | −2.01 | P<0.01 |
% of child registered patients | 19.9 | 30.7 | −10.7 | P<0.01 |
% of registered patients exempt from payment charges | 36.7 | 43.2 | −6.6 | P<0.01 |