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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