Evidence-based On-call

Community-acquired pneumonia

Clinical features

Ask about smoking ^a

Why?

Current smoking or smoking within the last 10 years increases the risk of community-acquired pneumonia

Patient	Prognostic Factor	Outcome	CER	RR (95% CI)	NNF+ (95% CI)
women aged 27 to 44 ^a	current smoking independent	community-acquired pneumonia at 2 years	0.35%	1.55 (1.15 to 2.10)	520 (260 to 1900)
men aged 44 to 79 ^a	current smoking > 25 cigarretes per day independent	community-acquired pneumonia at 6 years	0.85%	2.54 (1.40 to 4.59)	76 (32 to 290)
	smoked within last 10 years independent	community-acquired pneumonia at 6 years	0.85%	1.56 (1.04 to 2.33)	210 (88 to 2900)