| Births observed | Queensland perinatal data (2005) |
---|---|---|
n (%) | (%) | |
Onset of labor | Â | Â |
 Spontaneous | 43 (55.1) | (57.2) |
 Induced | 25 (32.1) | (23.4) |
 No labour (c/s) | 10 (12.8) | (19.5) |
Adverse birth event | Â | Â |
 Prolonged 2nd stage &/or failure to progress | 9 (11.5) | (12.4) |
 Foetal distress &/or meconium liquor | 12 (15.4) | (20.2) |
 Labour <4 hours (precipitate birth) | 10 (14.7) | (23.5) |
Method of Analgesia during labor a | Â | Â |
 At least one method | 55 (70.5) | (63.6) |
 Nitrous oxide | 52 (66.7) | (62.4) |
 Pethidine (narcotic IM/IV)b | 22 (28.2) | (35.3) |
 Epidural | 24 (30.8) | (33.9) |
 Spinal anaesthesia/other | 11 (14.1) | (10.1) |
Vaginal birth | Â | Â |
 Spontaneous vertex | 52 (66.7) | (59.5) |
 Forceps/vacuum extraction | 9 (11.5) | (7.9) |
Caesarean section | Â | Â |
 Elective caesarean section | 10 (12.8) | (19.5) |
 Emergency caesarean section | 7 (9) | (13) |
Episiotomy | 11 (14.1) | (13.5) |
Baby Apgar score @ 1 minute | Â | Â |
 Score of 6 – 7c | 8 (6.5) | (14.8) |
 Score of 8 - 10 | 70 (89.7) | (83.2) |
Baby Apgar score @ 5 minutes | Â | Â |
 Score of 8 - 10 | 78 (100) | (97.4) |
Birth weight by gestation | Â | Â |
 2000 - 2449 grams |  |  |
   36 weeks gestation (32–36)d | 1 (1.3) | (1.8) |
   37–41 weeks gestation | 4 (5.1) | (1.5) |
   2500 grams - 3999 |  |  |
   37–41 weeks gestation | 58 (74.4) | (78.3) |
   4000 grams plus |  |  |
   37 plus weeks gestation | 15 (19.2) | (15.8) |
Sex | Â | Â |
 Male | 40 (51.3) | (51.5) |
 Female | 38 (48.7) | (48.5) |