Table 2

Baseline antepartum and intrapartum characteristics at trial entry

Resutured
(n=17) n (%)
Expectancy
(n=16) n (%)
Age (years)
 20–247 (41)3 (19)
 25–293 (18)5 (31)
 30–345 (29)7 (44)
 35 and over2 (12)1 (6)
Ethnicity
 White17 (100)10 (63)
 Non-white0 (0)6 (37)
BMI (NICE reference range, kg/m2)
 Underweight: <18.50 (0)1 (6)
 Healthy: 18.5–24.95 (29)10 (63)
 Overweight: 25–29.97 (42)2 (12)
 Obese: ≥305 (29)3 (19)
Predelivery medical conditions*
 Yes6 (35)6 (37)
 No11 (65)10 (63)
Smoking (woman's self-reported status)
 Yes3 (18)1 (6)
 No14 (82)15 (94)
First vaginal delivery
 Yes14 (82)13 (81)
 No3 (18)3 (19)
Previous perineal trauma
 Yes3 (18)3 (19)
 No14 (82)13 (81)
Previous perineal wound dehiscence (in women with previous perineal trauma)
 Yes2 (67)0 (0)
 No1 (33)3 (100)
Analgesia used in labour
Entonox
 Yes14 (82)13 (81)
 No3 (18)3 (19)
Epidural
 Yes11 (65)6 (37)
 No6 (35)10 (63)
2nd stage of labour in minutes, mean (SD)80 (64)93 (66)
Mode of vaginal delivery
 Spontaneous7 (41)9 (56)
 Operative10 (59)7 (44)
Birth weight ≥4 kg
 Yes3 (18)2 (12)
 No14 (82)14 (88)
Meconium liquor present
 Yes4 (23)2 (12)
 No11 (65)14 (88)
Type of perineal trauma
 Information not available2 (12)0 (0)
 Spontaneous (2nd degree)5 (29)4 (25)
 Episiotomy12 (71)12 (75)
Clinician performing primary repair
 Midwife7 (41)8 (50)
 Doctor10 (59)8 (50)
Vicryl rapide used for repair of 2nd degree tear or episiotomy
 Yes15 (88)15 (94)
 No1 (6)1 (6)
 Information not available1 (6)0 (0)
Location of perineal repair
 Delivery room14 (82)13 (81)
 Theatre3 (18)3 (19)
Estimated blood loss >500 mLs
 Yes5 (29)4 (25)
 No12 (71)11 (69)
 Information not available0 (0)1 (6)
Most recent haemoglobin (Hb) <11.0 g/dL
 Yes5 (29)4 (25)
 No10 (59)11 (69)
 Information not available2 (12)1 (6)
Antibiotics in labour
 Yes2 (12)2 (12)
 No15 (88)14 (88)
  • *Predelivery medical conditions: resuturing, scoliosis; raised blood pressure; antibiotics for pyelonephritis 1 week prior to birth; bicuspid aortic valve and supra ventricular tachycardia; mild thoracolumbar scoliosis—reported back pain during pregnancy; previous laparoscopy and salpingectomy. Expectancy, factor 5 leiden; possible obstetric cholestasis; mild thrombocytopenia in pregnancy; gestational hypertension on labetalol; hypothyroidism; palpitations and shortness of breath.

  • BMI, Body Mass Index; NICE, National Institute for Health and Care Excellence.