of borderline significancep=0 · 060
The difference in hospital-admission rates between the CRP group and the non-CRP group (22 vs eight) was significant when controlled for clustering (odds ratio 2 · 61, 95% CI 1 · 07–6 · 35, p=0 · 034), but of borderline significance when controlled for all potential confounders (2 · 91, 0 · 96–8 · 85, p=0 · 060).