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Table 1 Clinical characteristics of the study population

From: Underweight body mass index is a risk factor of mortality in outpatients with nocturia in Japan

Characteristics Total
No. patients 193
Age, median (IQR) (years) 73 (11)
Female, no. (%) 37 (19.2)
BMI, median (IQR) 22.5 (3.4)
IPSS score 7, median (IQR) 4 (1)
IPSS total score, median (IQR) 15 (9)
IPSS QOL, median (IQR) 4 (1)
SF-36 PCS, median (IQR) 46.0 (14.6)
SF-36 MCS, median (IQR) 49.8 (12.9)
SF-36 RCS, median (IQR) 47.0 (23.0)
PSQI, median (IQR) 8 (6.8)
NPi, median (IQR) 0.43 (0.32)
Charlson Comorbidity Score 1 (2)
Follow up (years) 4.85 (4.99)
  1. IQR interquartile range, BMI body mass index, IPSS International Prostate Symptom Score, SF-36 Medical Outcome Study Short Form-36 item for health-related QOL, PCS Physical Component Summary, MCS Mental Component Summary, RCS Role Component Summary, PSQI Pittsburgh Sleep Quality Index, NPi Nocturnal Polyuria index