Table 3.

Demographic and haematological predictors of admission to ICU

Covariates	OR	95% CI	P‐value
Sex (male)	2.15	(1.05–4.39)	0.036
Age (10 year increase)	1.68	(1.32–2.14)	<0.001
Presence of co‐morbid conditions	3.29	(1.37–7.89)	0.008
Hb in g/dl (1 g/dl increase)	1.06	(0.77–1.45)	0.720
WCC in 109/l (1 × 109/l increase)	1.20	(1.01–1.43)	0.034
ALC in 109/l (0.1 × 109/l increase)	0.91	(0.79–1.04)	0.171
Platelet count in 109/l (50 × 109/l increase)	1.00	(0.99–1.01)	0.506
Absolute neutrophil count (0.5 × 109/l increase)	1.11	(1.02–1.21)	0.021

Haematological values taken on days 2–5 of symptoms.