| VWPG*50 versus VWPG100 | VWPG50 vs. VWPG150 | VWPG100 vs. VWPG150 |
1. Difference % | 6.7 | 12.6 | 5.9 |
95% confidence interval | −16 to 28.4 | −10.7 to 33.9 | −16.8 to 27.8 |
Chi-squared | 0.310 | 1.066 | 0.237 |
Degree of freedom | 1 | 1 | 1 |
Significance level | P = 0.5578 | P = 0.3018 | P = 0.6267 |
2. Odds ratio | 1.3364 | 1.6970 | 1.2698 |
95% confidence interval | 0.492 to 3.630 | 0.629 to 4.580 | 0.486 to 3.314 |
Significance level | P = 0.5696 | P = 0.2965 | P = 0.6254 |