Skip to main content

Table 3 Regression coefficients obtained from the multilevel linear regression models

From: Long-term participation in community-based group resistance exercises delays the transition from robustness to frailty in older adults: a retrospective cohort study

  KCL5 score
Mean difference of Kihon Checklist score by 1-unit increase of each explanatory variable
  N=2414 (total1=7928) p value
Model 12
 Intercept 4.61 (4.49, 4.73) P<0.001
 Age4 (years old) 0.75 (0.67, 0.82) P<0.001
Model 23
 Intercept 3.90 (3.33, 4.46) P<0.001
 Age4 (years old) 0.82 (0.64, 0.99) P<0.001
 Participation   
  Short 0 (Reference)  
  Mid − 0.31 (− 0.64, 0.02) P=0.069
  Long − 0.93 (− 1.30, − 0.56) P<0.001
 Change of KCL score from baseline 0.51 (0.49, 0.52) P<0.001
 Interaction terms between age and participation
  Age:short 0 (Reference)  
  Age:mid − 0.15 (− 0.38, 0.08) P=0.211
  Age:long − 0.17 (− 0.40, 0.07) P=0.162
  1. 1Records due to repeated physical test
  2. 2Model 1 was unadjusted
  3. 3Model 2 was adjusted for sex, systolic blood pressure, and pulse rate
  4. 4Age was centered by 75 years old
  5. 5KCL was Kihon Checklist