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

BMC Public Health

Table 14 Current cigar smoking and laryngeal cancer by inhalation level, cigars per day, and duration

Study	Cohort name	Inhalation level	Cigars per day	Duration (years)	Effect estimate	95% CI	Measure	Primary/secondary*
Shanks1998	CPS-I		1 to 2		6.45	(0.72, 23.27)	IRR	Primary
Shanks1998	CPS-I		5+		26.03	(8.39, 60.74)	IRR	Primary
Shapiro2000	CPS-II		1 to 2		6	(0.70, 53.50)	HR	Primary
Shapiro2000	CPS-II		3+		15	(3.40, 65.90)	HR	Primary
Shanks1998	CPS-I	None			10.6	(3.87, 23.07)	IRR	Primary
Shanks1998	CPS-I	Moderate-deep			53.26	(0.70, 296.32)	IRR	Primary
Shapiro2000	CPS-II	No inhalation			4.2	(0.50, 37.10)	HR	Primary
Shapiro2000	CPS-II	Inhalation			39	(8.40, 180.10)	HR	Primary
Shapiro2000	CPS-II			<25	0	(0.00, 0.00)	HR	Primary
Shapiro2000	CPS-II			25+	13.7	(3.40, 54.50)	HR	Primary

*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.

ISSN: 1471-2458