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Table 3 Association of physical activity (PA) and daily sitting time (ST) with prevalence of frailty

From: Examining the independent and interactive association of physical activity and sedentary behaviour with frailty in Chinese community-dwelling older adults

  Cases/number Prevalence (95% CI) OR (95% CI)
Model 1 P Model 2 P
Physical activity
 Light 81/235 34.48 (28.28, 41.26) 1(Ref.)   1(Ref.)  
 Moderate 179/922 19.45 (16.85, 22.34) 0.468 (0.332,0.659) < 0.0001 0.609 (0.419,0.885) 0.009
 Vigorous 35/301 11.54 (8.16, 16.03) 0.244 (0.150,0.396) < 0.0001 0.399 (0.236,0.673) 0.001
MET-h/day    0.883 (0.845,0.923) < 0.0001 0.928 (0.887,0.971) 0.001
P value for trend    < 0.0001   0.002  
Daily sitting time
  <  4 h/day 85/583 14.48 (11.67,17.84) 1(Ref.)   1(Ref.)  
 4–6 h/day 106/467 22.77 (18.94,27.11) 1.690 (1.197,2.385) 0.003 1.400 (0.972,2.018) 0.071
 6–8 h/day 54/272 20.00 (15.36,25.60) 1.402 (0.930,2.113) 0.107 1.289 (0.835,1.989) 0.252
  ≥ 8 h/day 50/136 36.75 (28.56,45.79) 3.509 (2.215,5.560) < 0.0001 3.140 (1.932,5.106) < 0.0001
Per h increased    1.121 (1.057,1.189) < 0.0001 1.114 (1.046,1.185) 0.001
P value for trend    < 0.0001   < 0.0001  
P ST × Physical activity    0.013   0.036  
  1. Multivariable model 1 adjusted for PA level and ST; model 2 adjusted for educational level, living status, marital status, economic income, drinking status, comorbidity, polypharmacy
  2. OR Odds ratio, CI Confidence interval