Table 2 Year of birth and maternal morbiditya among women with a singleton pregnancy and postpartum haemorrhage, NSW, 2003–2011
From: Trends and outcomes of postpartum haemorrhage, 2003-2011
Vaginal births N = 46955 | Caesarean births N = 11037 | |||
|---|---|---|---|---|
Unadjusted OR | Adjusted ORb | Unadjusted OR | Adjusted ORb | |
Year of birth | ||||
2003 | Ref | Ref | Ref | Ref |
2004 | 0.87 (0.65, 1.17) | 0.90 (0.66, 1.21) | 1.20 (0.80, 1.79) | 1.13 (0.74, 1.72) |
2005 | 0.76 (0.56, 1.03) | 0.79 (0.58, 1.08) | 1.16 (0.78, 1.71) | 1.14 (0.76, 1.73) |
2006 | 0.70 (0.52, 0.94) | 0.70 (0.52, 0.96) | 1.13 (0.77, 1.65) | 1.03 (0.69, 1.55) |
2007 | 0.70 (0.52, 0.94) | 0.69 (0.51, 0.94) | 1.30 (0.89, 1.90) | 1.10 (0.73, 1.65) |
2008 | 0.93 (0.70, 1.22) | 0.90 (0.78, 1.20) | 1.18 (0.81, 1.73) | 1.04 (0.69, 1.55) |
2009 | 0.91 (0.69, 1.20) | 0.91 (0.69, 1.21) | 1.00 (0.69, 1.46) | 0.87 (0.58, 1.30) |
2010 | 0.65 (0.48, 0.88) | 0.64 (0.47, 0.87) | 0.78 (0.53, 1.16) | 0.67 (0.44, 1.01) |
2011 | 0.86 (0.65, 1.13) | 0.86 (0.65, 1.14) | 1.02 (0.70, 1.48) | 0.87 (0.58, 1.29) |
Maternal Age | ||||
Under 20 | 1.02 (0.71, 1.46) | 0.39 (0.14, 1.08) | ||
20–34 | Ref | Ref | ||
35+ | 1.31 (1.10, 1.55) | 1.16 (0.97, 1.40) | ||
Private patient | 0.89 (0.69, 1.14) | 0.92 (0.69, 1.21) | ||
Smoker | 1.02 (0.82, 1.27) | 1.12 (0.86, 1.45) | ||
Parity | ||||
1 | ||||
2–4 | 0.87 (0.74, 1.03) | 1.29 (1.04, 1.64) | ||
5+ | 0.80 (0.55, 1.17) | 1.53 (1.04, 2.24) | ||
Australian born | 0.82 (0.70, 0.96) | 0.72 (0.60, 0.87) | ||
Gestational Age | ||||
20–32 weeks | 2.43 (1.62, 3.65) | 2.27 (1.61, 3.22) | ||
33–36 weeks | 1.28 (0.92, 1.79) | 1.52 (1.16, 1.98) | ||
37+ weeks | Ref | Ref | ||
Mode of birth | ||||
Vaginal | Ref | |||
Forceps | 1.19 (0.95, 1.50) | . | ||
Vacuum | 1.14 (0.92, 1.41) | . | ||
Caesarean in labour | 1.64 (1.32, 2.03) | |||
Pre-labour caesarean | ||||
Induction | 1.10 (0.95, 1.27) | 1.31 (1.03, 1.67) | ||
Large for gestational age | 0.84 (0.68, 1.04) | 0.82 (0.65, 1.03) | ||
Chronic conditions | 2.94 (2.08, 4.14) | 2.07 (1.45, 2.97) | ||
Pregnancy factors | ||||
Antepartum haemorrhage | 1.42 (1.02, 1.96) | 1.04 (0.78, 1.39) | ||
Previous caesarean | 1.77 (1.33, 2.35) | 1.80 (1.43, 2.26) | ||
Previous PPH | 1.48 (1.25, 1.75) | 1.75 (1.44, 2.12) | ||
Malpresentation | 1.39 (0.59, 3.28) | 1.01 (0.78, 1.29) | ||
Morbidly adherent placenta | 4.25 (3.20, 5.64) | 10.21 (7.78, 13.40) | ||
Placenta praevia | 2.31 (1.80, 2.96) | |||
Gestational diabetes | 1.12 (0.85, 1.46) | 0.94 (0.70, 1.27) | ||
Pregnancy hypertension | 1.52 (1.24, 1.85) | 1.58 (1.25, 1.98) | ||
Hospital | ||||
Tertiary | Ref | Ref | ||
Urban | 1.15 (0.95, 1.41) | 1.00 (0.76, 1.32) | ||
Regional | 1.16 (0.96, 1.41) | 1.23 (0.95, 1.58) | ||
Private | 1.05 (0.77, 1.43) | 1.29 (0.90, 1.85) | ||