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Table 3 Adjusted odds ratio for select obstetric interventions by Health Service Executive hospital region, Republic of Ireland, 2005-2009

From: Regional variation in obstetrical intervention for hospital birth in the Republic of Ireland, 2005–2009

  Dublin Mid Leinster Dublin Northeast South West
Induction of labour a,b
Prostaglandin 1.00 0.86 (0.82-0.90) 1.75 (1.68-1.82) 1.12 (1.07-1.17)
Oxytocin 1.00 0.24 (0.22-0.25) 0.24 (0.23-0.26) 0.25 (0.23-0.26)
Artificial rupture of membrane 1.00 0.69 (0.65-0.72) 0.85 (0.81-0.89) 1.85 (1.77-1.93)
Otherc 1.00 1.10 (1.06-1.13) 1.00 (0.97-1.03) 1.32 (1.28-1.36)
Total induction 1.00 0.77 (0.75-0.79) 0.95 (0.92-0.97) 1.20 (1.17-1.23)
Pain relief a,d
Epidural anaesthesia 1.00 0.90 (0.88-0.92) 1.05 (1.03-1.07) 0.78 (0.77-0.80)
Mode of delivery
Elective caesareanb,e 1.00 2.36 (2.26-2.46) 2.42 (2.33-2.52) 2.74 (2.63-2.86)
Emergency caesareana,f 1.00 1.36 (1.31-1.40) 1.21 (1.18-1.25) 1.23 (1.19-1.27)
Vacuuma,f 1.00 1.54 (1.50-1.59) 1.26 (1.22-1.29) 1.36 (1.32-1.41)
Forcepsa,f 1.00 0.76 (0.72-0.79) 0.81 (0.78-0.85) 0.54 (0.51-0.58)
Non-operative vaginala,f 1.00 0.68 (0.67-0.70) 0.79 (0.77-0.81) 0.78 (0.76-0.80)
Select procedures
Blood transfusionb,e 1.00 1.13 (1.03-1.23) 0.85 (0.78-0.93) 0.51 (0.46-0.57)
Episiotomyg,h 1.00 0.40 (0.39-0.42) 0.58 (0.57-0.60) 0.75 (0.72-0.77)
  1. a Based on emergency caesarean or vaginal (operative and non-operative) deliveries only (N=286,495).
  2. b Adjusted for age, marital status, medical card possession, previous caesarean delivery and co-morbidities.
  3. c Includes medical and surgical methods not elsewhere specified.
  4. d Adjusted for age, marital status, medical card possession, previous caesarean delivery, co-morbidities and induction of labour.
  5. e Based on all deliveries (N=323,588).
  6. f Adjusted for age, marital status, medical card possession, previous caesarean delivery, co-morbidities, induction of labour and epidural. The interaction term between induction of labour and epidural was also included in the model.
  7. g Based on vaginal deliveries only (N=243,291).
  8. h Adjusted for age, marital status, medical card possession, co-morbidities and operative vaginal delivery.