Table 4.
Current cigar smoking and oral cancer
| Study | Cohort name | Cigar smoker deaths | Effect estimate | 95% CI | Measure | Primary/secondary* | Adjustment | ICD codes |
|---|---|---|---|---|---|---|---|---|
| Current Cigar | ||||||||
| Kahn1966 | Dorn study | 9 | 4.11 | (1.86, 7.84) | SMR | Age | ICD 7: 140-150 | |
| Shanks1998 | CPS-I | 25 | 7.92 | (5.12, 11.69) | IRR | Primary | Age | |
| Shanks1998 | CPS-I | 8 | 6.58 | (2.83, 12.97) | IRR | Secondary | Age | |
| Shapiro2000 | CPS-II | 6 | 4 | (1.50, 10.30) | HR | Primary | Age, alcohol, smokeless tobacco | ICD 9: 140–141, 143-149 |
*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.