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
| 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) | – | – | – | |||||||||
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