Table 1 Baseline characteristics of women recruited to the Closure randomised trial
Characteristic | Group 1 Non-absorbable suture and non-closure fascia N = 215 | Group 2 Absorbable suture and non-closure fascia N = 211 | Group 3 Non-absorbable suture and closure fascia N = 212 | Group 4 Absorbable suture and closure fascia N = 211 | Total N = 849 |
|---|---|---|---|---|---|
Maternal age (years; mean (SD)) | 31.26 (5.73) | 31.56 (5.32) | 31.16 (5.81) | 31.93 (5.62) | 31.48 (5.62) |
BMI (kg/m2) Median (IQR) | 28.29 (7.37) | 28.84 (7.60) | 28.75 (7.33) | 28.54 (7.18) | 28.60 (7.36) |
BMI category (kg/m2) N (%) | |||||
 - BMI ≤ 25.0 | 86 (40.00) | 79 (37.44) | 81 (38.21) | 78 (36.97) | 324 (38.16) |
 - BMI >25.0 | 129 (60.00) | 132 (62.56) | 131 (61.79) | 133 (63.03) | 525 (61.84) |
Caesarean section type N (%) | |||||
 - elective | 177 (82.33) | 175 (82.94) | 175 (82.55) | 174 (82.46) | 701 (82.57) |
 - emergency | 38 (17.67) | 36 (17.06) | 37 (17.45) | 37 (17.54) | 148 (17.43) |
Gestational age at delivery Mean (SD) | 38.34 (2.02) | 38.48 (2.12) | 38.50 (1.85) | 38.70 (1.31) | 38.50 (1.85) |
Ethnicity N(%) | |||||
 - Caucasian | 155 (72.09) | 162 (76.78) | 157 (74.06) | 167 (79.15) | 641 (75.50) |
 - Other | 60 (27.91) | 49 (23.22) | 55 (25.94) | 44 (20.85) | 208 (24.50) |
Parity N (%) | |||||
 - 0 | 48 (22.33) | 49 (23.22) | 53 (25.00) | 43 (20.38) | 193 (22.73) |
 - 1 or more | 167 (77.67) | 162 (76.78) | 159 (75.00) | 168 (79.62) | 656 (77.27) |
Smoker N (%) | 40 (18.60) | 41 (19.43) | 42 (19.81) | 34 (16.11) | 157 (18.49) |
Singleton pregnancy N(%): | 207 (96.28) | 202 (95.73) | 206 (97.17) | 202 (95.73) | 817 (96.23) |
Previous Caesarean section N(%) | 146 (67.91) | 136 (64.45) | 136 (64.15) | 144 (68.25) | 562 (66.20) |
Previous non-caesarean laparotomy N(%) | 6 (2.79) | 5 (2.37) | 6 (2.83) | 6 (2.84) | 23 (2.71) |