Table 2. Mean Score of Positive and Negative Mood at Follow-Up the Two Groups Receiving Second and Third Generation Contraceptive Pillsa,b,c.
| Mood | Group Receiving Second Generation, Mean ± SD | Group Receiving Third Generation, Mean ± SD | Mean Difference (95% CI) | Statistical Indicators |
|---|---|---|---|---|
| Positive mood | ||||
| Pre-intervention | 43.39 ± 2.62 | 22.42 ± 8.74 | 20.95 (18.11, 23.78) | t = 14.68, df = 80, P < 0.001 |
| Two months later | 38.32 ± 5.58 | 25.60 ± 8.36 | -6.42 (-9.80, -3.03) | F = 14.25b, df = 1, P < 0.001 |
| Four months later | 26.05 ± 6.27 | 33.87 ± 9.38 | -20.75 (-26.63, -14.87) | F = 49.43b, df = 1, P < 0.001 |
| Negative mood | ||||
| Pre-intervention | 14.23 ± 3.88 | 36.78 ± 4.37 | -22.55 (-24.370, -20.730) | t = 24.68, df = 80, P < 0.001 |
| Two months later | 22.04 ± 6.26 | 31.97 ± 5.76 | 7.95 (14.63, 1.27) | F = 5.61 b, df = 1, P = 0.02 |
| Four months later | 32.26 ± 6.24 | 26.65 ± 6.86 | 12.14 (3.60, 20.64) | F = 8.08 b, df = 1, P < 0.001 |
a Abbreviations: CI, mean difference (confidence interval).
b Minimum and maximum score of Positive and negative mood was 10-50.
c ANOVA.