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Table 3 Subgroup analyses of crude and adjusted hazard ratios (95% confidence interval) for mortality in the physical activity (PA) group compared with the insufficient PA group according to obesity

From: Mortality and cause of death in physical activity and insufficient physical activity participants: a longitudinal follow-up study using a national health screening cohort

Characteristics Hazard ratios
Crude P-value Adjusted† P-value
Underweight (n = 7109)
 PA 0.77 (0.67–0.88) < 0.001* 0.83 (0.72–0.95) 0.008*
 Insufficient PA 1.00   1.00  
Normal weight (n = 116,673)
 PA 0.81 (0.77–0.86) < 0.001* 0.85 (0.81–0.90) < 0.001*
 Insufficient PA 1.00   1.00  
Overweight (n = 94,350)
 PA 0.85 (0.79–0.91) < 0.001* 0.90 (0.84–0.97) 0.005*
 Insufficient PA 1.00   1.00  
Obese I (n = 107,294)
 PA 0.80 (0.75–0.86) < 0.001* 0.80 (0.75–0.86) < 0.001*
 Insufficient PA 1.00   1.00  
Obese II (n = 9400)
 PA 0.63 (0.50–0.79) < 0.001* 0.72 (0.57–0.92) 0.007*
 Insufficient PA 1.00   1.00  
  1. Abbreviations: CCI Charlson comorbidity index, PA physical activity
  2. * Unstratified Cox-proportional hazard regression model, significance at P < 0.05
  3. † A model adjusted for age, sex, income, region of residence, smoking, alcohol consumption, and CCI scores