Table 2.
Comparison between the groups (SWETZ × LLETZ-cone): surgical outcomes (IFF/Fiocruz - 2008–2011)
| SWETZ | %, range or SD * | LLETZ-cone | %, range or SD * | ARR (95% CI) | RR (95% CI) | p-value | |
|---|---|---|---|---|---|---|---|
| N | 78 | 100 | 76 | 100 | - | - | - |
| Blood loss (ml) | |||||||
| <20 | 74 | 94.9 | 76 | 100 | - | - | |
| 20-100 | 4 | 5.1 | 0 | 0 | −5.1 (−10.0 – -0.2) | - | 0.1† |
| Number of segments removed | |||||||
| 1 | 77 | 100 | 59 | 78.7 | 19.8 (10.3-29.3) | - | - |
| >1 | 0 | 0 | 16 | 21.3 | - | - | <0,01‡ |
| No data | 1 | - | 1 | - | - | - | |
| Surgery time - minutes (median) | 20 | 8-60 | 17 | 9-32 | - | - | <0,01§ |
| ≤18 min | 33 | 42.9 | 44 | 60.3 | - | - | - |
| >18 min | 44 | 57.1 | 29 | 39.7 | −16.3 (−32,2 – -0.4) | 1.44 (1.02-2.03) | |
| No data | 1 | - | 5 | - | - | - | - |
| Geometric ambition - mm (average)¶ | 30.92 | 6.31 | 30.54 | 6.15 | - | - | 0,7|| |
| Geometric ambition difference - mm (average)¶** | 10.19 | 5.7 | 10.62 | 5.5 | - | - | 0,7|| |
| Anesthetic volume – ml | 8.26 | 1.95 | 8.04 | 1.8 | - | - | 0,5|| |
| No data | 11 | - | 15 | - | - | - | - |
| Complications | 2‡‡ | 2.6 | 2†† | 3 | 0.1 (−5.0-5.1) | 0.97 (0.14-6.74) | 1† |
*Cases with no data were excluded.
† Fisher's Exact test.
‡Chi-square.
§Mann–Whitney test.
||Student's t-test.
¶The ones unfilled of ambition or without histological measure were excluded.
**Difference between the desired extension (endo + ecto) and what was effectively measured in the specimen.
††Opening of the vaginal mucosa and the need for anesthetic supplementation.
‡‡Opening of the lateral vaginal cul-de-sac with vascular injury, requiring total hysterectomy and need for general anesthesia.