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. 2007 Mar;92(2):F99–F103. doi: 10.1136/adc.2006.102988

Table 6 Risk‐adjusted mortality and specialist nurse provision ratio categories.

Specialist nurse provision ratio p Value Odds Ratio (95% C.I.*)
<1.0 0.03 Referent Category
1.0–1.2 0.105 0.63 (0.37 to 1.10)
1.3–1.8 0.006 0.52 (0.33 to 0.83)
>1.8 0.08 0.57 (0.31 to 1.08)

*The odds ratios and 95% confidence intervals are derived using logistic regression modelling with an odds ratio <1 indicating a decrease in odds relative to high volume/consultant/nursing units.