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Table 2 Cox regression analyses predicting the death in nocturia patients

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

  Univariate analysis
OR (95 % CI) P value*
Age at first visit 1.09 (1.04–1.14) <0.001
Female 0.53 (0.21–1.35) 0.18
BMI 0.81 (0.73–0.90) <0.0001
IPSS score 7 1.17 (0.83–1.64) 0.38
IPSS total score 1.01 (0.96–1.01) 0.78
IPSS QOL 1.17 (0.88–1.56) 0.29
SF-36 PCS 0.97 (0.94–0.99) <0.01
SF-36 MCS 0.99 (0.96–1.03) 0.54
SF-36 RCS 0.99 (0.96–1.01) 0.3
PSQI 1.00 (0.91–1.09) 0.93
NPi 0.59 (0.06–5.60) 0.64
Charlson Comorbidity Score 1.42 (1.24–1.63) <0.0001
  Multivariate analysis
OR (95 % CI) P value*
Age at first visit 1.05 (0.98–1.11) 0.15
BMI 0.83 (0.74–0.94) <0.005
SF-36 PCS 0.97 (0.95–1.00) <0.05
Charlson Comorbidity Score 1.44 (1.21–1.71) <0.0001