Journal of Epidemiology and Community Health
Smoking and physically demanding work linked to higher death risk
Death risk was 2.60 times as high among smokers with physically demanding jobs as among nonsmokers with low physical work demands.Death risk was 2.60 times as high among smokers with physically demanding jobs as among nonsmokers with low physical work demands.

Meta-analysis · 36,076 peoplePopulations
Who was studied36,076 participants reporting physical work demands, average 25 years
What changedDeath risk was 2.60-fold higher among smokers with physically demanding work than among nonsmokers with low physical work demands
The catchDiet quality was unmeasured and could confound the link with death