Table 3. Menstrual cycle, premenstrual symptoms and psychosexual characteristics among patients who underwent videolaparoscopic tubal ligation by means of Yoon Silastic' ring insertion (n = 50) or bipolar electrocoagulation and sectioning (n = 80).
| Variables | Pre-tubal ligation Tubal ring | Post-tubal ligation Tubal ring | P-value* | Pre-tubal ligation Electrocoagulation | Post-tubal ligation Electrocoagulation | P-value* |
|---|---|---|---|---|---|---|
| Menstrual cycle (days) | ||||||
| Minimum interval | 28 (15-28) | 25 (15-28) | 0.978(1) | 28 (20-28) | 28 (20-28) | 0.855(1) |
| Maximum interval | 30 (30-30) | 30 (30-35) | 0.862(1) | 30 (30-30) | 30 (30-30) | 0.514(1) |
| Length of bleeding (days) | 5 (4-5) | 5 (4-7) | 0.235(1) | 4 (3-5) | 5 (3-6) | 0.266(1) |
| Number of sanitary pads on day of heaviest flow | 4 (3-5) | 5 (3-8) | 0.004(1) | 4 (3-5) | 4 (3-7) | 0.002(1) |
| Number of sanitary pads used during menstruation | 15 (10-20) | 20 (10-29) | 0.040(1) | 11 (10-17) | 15 (10-28) | 0.015(1) |
| Intermenstrual bleeding | 14.0% (n = 7) | 12.0% (n = 6) | 1.000(2) | 12.5% (n = 10) | 13.8% (n = 11) | 1.000(2) |
| Spotting | 6.0% (n = 3) | 6.0% (n = 3) | 1.000(2) | 2.5% (n = 2) | 5.0% (n = 4) | 0.625(2) |
| Premenstrual symptoms | 52.0% (n = 26) | 72.0% (n = 36) | 0.006(2) | 55.0% (n = 44) | 73.8% (n = 59) | 0.006(2) |
| Noncyclic pelvic pain | 14.0% (n = 7) | 28.0% (n = 14) | 0.092(2) | 11.3% (n = 9) | 23.8% (n = 19) | 0.006(2) |
| Intercourse occurrences per week | 3 (2-4) | 3 (1-4) | 0.045(1) | 3 (2-4) | 2 (1-3) | 0.012(1) |
| Libido | 76.0% (n = 38) | 66.0% (n = 33) | 0.302(2) | 78.8% (n = 63) | 58.8% (n = 47) | 0.001(2) |
| Dyspareunia | 34.0% (n = 17) | 22.0% (n = 11) | 0.227(2) | 17.5% (n = 14) | 26.3% (n = 21) | 0.092(2) |
Values expressed as medians (25th to 75th percentile) and percentages
*
Difference significant if P < 0.05 [(1)Wilcoxon's test for dependent samples; (2)McNemar's test]