From: Clinical outcomes of Single-Visit oral Prophylaxis: A practice-based randomised controlled trial
 | 6-month Group | 12-month Group | 24-month Group | Statistical Test |
---|---|---|---|---|
Prevalence of gingival bleeding | ||||
Data available for both baseline and follow up (N = 307) | 107 | 100 | 100 | Â |
N (%) with any bleeding at follow-up | 84 (78.5) | 78 (78.0) | 82 (82.0) | Χ2 test P = 0.746 |
Complete data analysis (N = 307) | ||||
Odds Ratio (from Logistic regression) (95% CI) for follow up adjusted for baseline bleeding | 1.00 | 0.92 (0.47, 1.79) | 1.17 (0.59, 2.35) | Â |
Multiple imputation analysis c (N = 368) | ||||
Odds Ratio (from Logistic regression) (95% CI) for follow up adjusted for baseline bleeding | 1.00 | 0.92 (0.45, 1.89) | 1.19 (0.58, 2.47) | Â |
Proportion of index teeth examined with gingival bleeding d | ||||
Complete data analysis (N = 307) | ||||
Follow-up % of index teeth with bleeding Mean (SD) | 37.9 (30.3) | 38.8 (30.7) | 39.8 (30.2) | ANOVA P = 0.896 |
Follow-up % of index teeth with bleeding adjusted for baseline bleeding | ANCOVA P = 0.979 | |||
Multiple imputation analysis c (N = 368) | ||||
Follow-up % of index teeth with bleeding adjusted for baseline bleeding (from linear regression) | P = 0.932 |