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Table 2 Odds ratio for hospital admissions for psychiatric disorders in primiparous mothers, 2001–2010, New South Wales, Australia

From: The increased trend in mothers’ hospital admissions for psychiatric disorders in the first year after birth between 2001 and 2010 in New South Wales, Australia

Year Primiparous mothers (n) Principal diagnosis# All diagnoses#
   OR 95% CI OR 95% CI
2001 34,816 1      
2002 34,463 1.60 1.37 1.86 1.25 1.13 1.40
2003 35,091 1.31 1.12 1.53 1.55 1.40 1.72
2004 34,877 1.60 1.38 1.86 1.89 1.71 2.08
2005 36,157 3.08 2.69 3.54 2.07 1.88 2.28
2006 36,509 2.76 2.40 3.17 1.71 1.55 1.89
2007 38,379 2.56 2.23 2.94 1.59 1.43 1.75
2008 38,330 2.60 2.26 2.98 1.52 1.37 1.68
2009 38,960 2.49 2.17 2.86 1.51 1.37 1.67
2010 39,573 2.34 2.04 2.69 1.72 1.56 1.90
  1. #For this analysis, dependent variable was mothers who admitted to hospital for psychiatric disorders in the first year after birth (0 = no, 1 = yes). Mothers who were admitted to hospital more than once in the first year after birth were only counted once.
  2. OR: odds ratio; CI: confidence interval.