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Table 3 Associations between personality traits and polypharmacy

From: Association of personality traits with polypharmacy among community-dwelling older adults in Japan: a cross-sectional analysis of data from the SONIC study

  Men (N = 397) Women (N = 439)
aOR (95% CI) P-value aOR (95% CI) P-value
Subjective economic status
 Economically difficult ref   ref  
 Usually adequate 0.511 (0.221–1.184) 0.117 1.475 (0.734–2.966) 0.275
 Economically adequate 1.347 (0.687–2.643) 0.386 0.780 (0.428–1.421) 0.416
Drinking habits 0.564 (0.323–0.983) 0.043 0.398 (0.159–0.995) 0.049
Smoking habits 1.106 (0.532–2.297) 0.788 1.879 (0.450–7.855) 0.387
Body mass index 1.549 (0.847–2.836) 0.156 1.021 (0.585–1.784) 0.941
IADL 0.964 (0.484–1.921) 0.917 1.107 (0.175–7.005) 0.914
Depressive mood 1.197 (0.578–2.478) 0.629 1.162 (0.622–2.170) 0.639
Number of chronic diseases
 0–1 ref   ref  
 2 1.377 (0.592–3.202) 0.457 3.730 (1.605–8.667) 0.002
 ≥ 3 8.680 (4.376–17.218)  < 0.001 11.60 (5.382–25.006)  < 0.001
Personality
 Neuroticism 1.078 (1.015–1.144) 0.015 1.023 (0.975–1.072) 0.357
 Extraversion 1.009 (0.952–1.071) 0.757 0.932 (0.884–0.983) 0.010
 Openness 0.988 (0.926–1.055) 0.719 1.049 (0.990–1.112) 0.107
 Agreeableness 1.047 (0.976–1.123) 0.200 0.986 (0.927–1.048) 0.645
 Conscientiousness 1.016 (0.956–1.080) 0.617 1.038 (0.985–1.094) 0.159
  1. aOR adjusted odds ratio, CI confidence interval
  2. The model adjusted for subjective economic status (economically difficult [reference]/usually/economically), drinking (no drinking [reference]/currently), smoking (not smoking [reference]/currently), body mass index (<25 kg/m2 [reference]/≥25 kg/m2 [obesity]), number of chronic diseases (0–1 [reference]/2/≥ 3), instrumental activities of daily living (independent [reference]/dependent), and depressive mood (none [reference]/depressive)