Demographic and clinical characteristics of patients with community-onset pneumonia in Japan.

* Characteristics were compared between outpatients and inpatients using chi-square tests unless otherwise indicated.† A score test for trend was performed.‡ Underlying diseases included diabetes mellitus, hypertension, hyperlipidemia, chronic heart disease, cerebrovascular disease, liver disease, renal disease, collagen vascular disease, chronic lung disease, neuromuscular disease, and malignant disease.§ The period from onset to hospital visit.¶ Fisher’s exact test was performed.Demographic and clinical characteristics of patients with community-onset pneumonia in Japan.