Table 3. Laboratory-confirmed bacterial vaginosis, vaginal yeasts and trichomoniasis by randomisation group.
| Incident infection between first ring insertion and last ring removal 1 | Intermittent use of three rings | Continuous use of four rings | P-value2 |
|---|---|---|---|
| Bacterial vaginosis (Nugent 7–10)3 | 4 / 24 (16.7) | 8 / 24 (33.3) | 0.318 |
| Asymptomatic | 4 / 24 (16.7) | 7 / 24 (29.2) | 0.494 |
| Symptomatic4 | 0 / 24 (0.0) | 1 / 24 (4.2) | 1.000 |
| Vaginal yeasts (wet mount)3 | 13 / 58 (22.4) | 15 / 56 (26.8) | 0.666 |
| Asymptomatic | 12 / 58 (20.7) | 8 /56 (14.3) | 0.462 |
| Symptomatic4 | 1 / 58 (1.7) | 7 / 56 (12.5) | 0.031 |
| Trichomoniasis (wet mount)3 | 3 / 55 (5.5) | 4 /56 (7.1) | 1.000 |
| Asymptomatic | 2 / 55 (3.6) | 3 / 56 (5.4) | 1.000 |
| Symptomatic4 | 1 / 55 (1.8) | 1 / 56 (1.8) | 1.000 |
1. Number of women with positive test result at one or more ring removal visits / Number of women who were negative for that infection at baseline (%).
2. Fisher’s exact test.
3. To incident BV also applies: a Nugent score of 7–10 after a previous Nugent score of 0–6.
4. Symptomatic: woman reported a urogenital symptom(s), or clinician observed a urogenital sign(s), at the same visit as the positive laboratory test result.