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Table 2 Poisson log linear model showing estimates of total GDM and women with GDM having CS and IOL according to hospital sizea, 2008–17

From: The impact of revised diagnostic criteria on hospital trends in gestational diabetes mellitus rates in a high income country

  Total GDM Women with GDM & CS Women with GDM & IOL
B Sig. Exp(B) 95% CI B Sig. Exp(B) 95% CI B Sig. Exp(B) 95% CI
Hospital size
 Large 2.17 .000 8.74 8.54–8.95 1.88 .000 6.53 6.23–6.85 1.94 .000 6.98 6.66–7.32
 Mid-size 1.08 .000 2.94 2.86–3.02 1.04 .000 2.83 2.69–2.98 1.05 .000 2.86 2.72–3.02
 Small (Ref)          
Year
 2008 −1.40 .000 0.25 0.24–0.26 −1.43 .000 0.24 0.22–0.26 −1.68 .000 0.19 0.17–0.21
 2009 −1.24 .000 0.29 0.28–0.30 −1.24 .000 0.29 0.27–0.32 −1.37 .000 0.25 0.23–0.28
 2010 −1.08 .000 0.34 0.33–0.35 −1.14 .000 0.32 0.29–0.35 −1.18 .000 0.31 0.28–0.34
 2011 −0.85 .000 0.43 0.41–0.45 −0.81 .000 0.44 0.41–0.48 −0.89 .000 0.41 0.38–0.44
 2012 −0.62 .000 0.54 0.52–0.56 −0.61 .000 0.54 0.50–0.58 −0.64 .000 0.53 0.49–0.57
 2013 −0.56 .000 0.57 0.55–0.59 −0.48 .000 0.62 0.58–0.66 −0.54 .000 0.60 0.56–0.64
 2014 −0.31 .000 0.73 0.71–0.76 −0.33 .000 0.72 0.67–0.77 −0.33 .000 0.72 0.68–0.77
 2015 −0.22 .000 0.81 0.78–0.83 −0.25 .000 0.78 0.73–0.84 −0.27 .000 0.76 0.72–0.81
 2016 −0.07 .000 0.94 0.91–0.96 −0.44 .160 0.96 0.90–1.02 −0.74 .190 0.93 0.87–1.00
 2017 (Ref)          
  1. aLarge hospitals: > 7000 deliveries per annum; Mid-sized hospitals/units: 2000–6000 deliveries p.a., Small units: < 2000 deliveries p.a. (based on numbers of deliveries in 2017). Source: Hospital In-Patient Enquiry (HIPE) system 2008-2017