Skip to main content

Table 3 Risk ratios for the development of social frailty after two years according to physical frailty subdomains

From: Physical frailty predicts the development of social frailty: a prospective cohort study

  Crude model Adjusted model
RR 95%CI p value RR 95%CI p value
Social frailty (by 4 domains)
 Physical frailty symptom 1.50 0.97–2.32 0.070 1.39 0.90–2.15 0.134
 Subdomain
  Slow gait speed 2.70 1.05–6.94 0.040 2.65 0.94–7.52 0.066
  Weakness 1.06 1.02–1.09 0.003 1.05 1.00–1.11 0.045
  Exhaustion 1.07 0.63–1.83 0.799 0.99 0.58–1.71 0.979
  Low activity 1.09 0.97–1.22 0.162 1.08 0.96–1.21 0.214
  Weight loss 0.90 0.46–1.77 0.760 0.92 0.47–1.81 0.816
Social frailty (by 2 domains)
 Physical frailty symptom 1.88 1.15–3.07 0.011 1.78 1.10–2.88 0.020
 Subdomain
 Slow gait speed 3.15 1.07–9.35 0.037 3.41 1.10–10.53 0.033
 Weakness 1.06 1.02–1.10 0.005 1.06 1.01–1.12 0.031
 Exhaustion 1.23 0.68–2.21 0.490 1.14 0.64–2.04 0.655
 Low activity 1.10 0.95–1.27 0.197 1.10 0.96–1.26 0.189
 Weight loss 0.94 0.43–2.03 0.869 0.94 0.43–2.05 0.880
  1. All of the subdomains in the social frailty index were used to assess development of social frailty (by 4 items). Social frailty (by 2 items) was assessed by the social activity and contact with neighbors subdomains in the social frailty index
  2. Slow gait speed, weakness (handgrip strength), and low activity levels were added as continuous variables in the models. Their RRs represent the risk when gait speed, handgrip strength, and physical activity are reduced by 1.0 m/s, 1.0 kg, and 1.0 METs・hour, respectively
  3. The adjusted model was adjusted with age, sex, GDS, MMSE, multimorbidity, fall, and TMIG-IC (IADL)
  4. RR Risk Ratio