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Table 24 Current cigar smoking and aortic aneurysm by inhalation level and cigars per day

From: Systematic review of cigar smoking and all cause and smoking related mortality

Study Cohort name Inhalation level Cigars per day Effect estimate 95% CI Measure Primary/secondary*
Shanks1998 CPS-I   1 to 2 1.82 (1.11, 2.81) IRR Primary
Shanks1998 CPS-I   3 to 4 0.88 (0.35, 1.82) IRR Primary
Shanks1998 CPS-I   5+ 2.62 (1.58, 4.09) IRR Primary
Shanks1998 CPS-I   1 to 2 3.03 (1.51, 5.43) IRR Secondary
Shanks1998 CPS-I   3 to 4 2.8 (1.34, 5.16) IRR Secondary
Shanks1998 CPS-I   5+ 2.64 (1.26, 4.85) IRR Secondary
Shanks1998 CPS-I None   1.73 (1.22, 2.39) IRR Primary
Shanks1998 CPS-I Slight   1 (0.20, 2.92) IRR Primary
Shanks1998 CPS-I Moderate-deep 4.94 (1.59, 11.52) IRR Primary
Shanks1998 CPS-I None   2.18 (1.22, 3.59) IRR Secondary
Shanks1998 CPS-I Slight   3.52 (1.69, 6.47) IRR Secondary
Shanks1998 CPS-I Moderate-deep 2.94 (0.95, 6.87) IRR Secondary
  1. *Primary cigar smoking: current, exclusive cigar smoking with no previous history of cigarette or pipe smoking; secondary cigar smoking: current, exclusive cigar smoking with previous history of cigarette or pipe smoking.