Table 4. Logistic regression predicting the odds of hospitalisation due to CAP (n=104 cases included in the analysis).

Determinant	Odds ratio	95% CI	P value
Age ⩾74 years	7.13	2.23–22.79	0.001
Obese	3.36	1.08–10.52	0.037
0 Pack-years	1.00 (reference)		0.019
1–39 Pack-years of smoking	0.317	0.06–1.73	0.185
⩾40 Pack-years of smoking	3.817	1.07–13.68	0.040
Multimorbidity	5.77	1.81–18.42	0.003
Vaccinated against pneumococcus	0.29	0.09–0.95	0.041

χ²-test 36.639 on d.f. 6; P value <0.0001; pseudo-R²=0.412.

95% CI, 95% confidence interval, Hosmer and Lemeshow χ²-test 6.39; P=0.604.

Abbreviations: CAP, community-acquired pneumonia; CI, confidence interval.