Table 1.
Characteristics of patients undergoing surgery of presumed stage I epithelial ovarian cancer surgical approach before and after propensity score matching.
| Characteristic | Before PSM | After PSM | |||||
|---|---|---|---|---|---|---|---|
| Laparoscopy (n = 86) | Laparotomy (n = 225) | P | Laparoscopy (n = 74) | Laparotomy (n = 126) | P | ||
| Median age, yrs (interquartile rage) |
49 (44–56) | 48 (42–53) | 0.165 a | 48.5 (43–54) | 48 (44–54) | 0.815 a | |
| Charlson Comorbidity Index | 0.388 b | 0.880 b | |||||
| 0 | 52 (60.5) | 106 (47.1) | 41 (55.4) | 68 (54.0) | |||
| 1 | 19 (22.1) | 61 (27.1) | 19 (25.7) | 36 (28.6) | |||
| 2 or more | 15 (17.4) | 58 (25.8) | 14 (18.9) | 22 (17.4) | |||
| Histological type | 0.026 b | 0.407 b | |||||
| Clear cell | 41 (47.7) | 89 (39.6) | 37 (50.0) | 54 (42.9) | |||
| Endometrioid | 10 (11.6) | 32 (14.2) | 10 (13.5) | 18 (14.3) | |||
| Serous | 20 (23.3) | 29 (12.9) | 16 (21.6) | 21 (16.7) | |||
| Mucinous | 9 (10.5) | 49 (21.8) | 7 (9.5) | 23 (18.3) | |||
| Other | 6 (7.0) | 26 (11.6) | 4 (5.4) | 10 (7.9) | |||
| Histological grade | 0.011 b | 0.236 b | |||||
| 1 | 13 (15.1) | 66 (29.3) | 13 (17.6) | 31 (24.6) | |||
| 2 | 2 (2.3) | 16 (7.1) | 2 (2.7) | 10 (7.9) | |||
| 3 | 60 (69.8) | 125 (55.6) | 53 (71.6) | 75 (59.5) | |||
| Unknown | 11(12.8) | 18(7.6) | 6 (8.1) | 10 (7.9) | |||
| Tumor size (cm) | <0.001 b | 0.071 b | |||||
| 1.0–4.9 | 6 (7.0) | 5 (2.2) | 3 (4.1) | 5 (4.0) | |||
| 5.0–9.9 | 27 (31.4) | 41 (18.2) | 21 (28.4) | 31 (24.6) | |||
| 10.0–14.9 | 27 (31.4) | 52 (23.1) | 24 (32.4) | 37 (29.4) | |||
| 15 or larger | 10 (11.6) | 88 (39.1) | 10 (13.5) | 38 (30.2) | |||
| Unknown | 16 (18.6) | 39 (17.3) | 16 (21.6) | 15 (11.9) | |||
| Adjuvant chemotherapy | 0.912 b | 0.746 b | |||||
| Yes | 66 (76.7) | 174 (77.3) | 59 (79.7) | 98 (77.8) | |||
| Unknown | 20 (23.3) | 51 (22.7) | 15 (20.3) | 28 (22.2) | |||
| Menopause | 38 (44.2) | 96 (42.7) | 0.898 b | 36 (48.6) | 51 (40.5) | 0.260 b | |
| BMI (kg/m2) | 22.79 ± 3.1 | 23.05 ± 3.4 | 0.554 b | 22.86 ± 3.2 | 23.03 ± 4.3 | 0.762 b | |
| FIGO stage | 0.197 b | 0.744 b | |||||
| IA | 42 (48.8) | 135 (60.0) | 41 (55.4) | 65 (51.6) | |||
| IB | 5 (5.8) | 12 (5.3) | 4 (5.4) | 5 (4.0) | |||
| IC | 39 (45.3) | 78 (34.7) | 29 (39.2) | 56 (44.4) | |||
| Ascites c | 20 (23.3) | 74 (32.9) | 0.224 b | 18 (31.0) | 45 (44.1) | 0.130 b | |
| Lymph nodes enlargement c | 4 (4.7) | 26 (11.6) | 0.119 b | 8 (10.8) | 14 (11.1) | 0.143 b | |
| Abdominal surgery history | 35 (40.7) | 97 (43.1) | 0.703 b | 28 (37.8) | 62 (49.2) | 0.141 b | |
| Family history of cancer | 16 (12.0) | 27 (18.6) | 0.144 b | 11 (14.9) | 15 (11.9) | 0.664 b | |
a
Mann–Whitney non-parametric test.
b
χ2 test.
c
46 missing.