Table 12 Current cigar smoking and pancreatic cancer by inhalation level, cigars per day, and duration

Shanks1998

CPS-I

1 to 2

1.18

(0.69, 1.89)

IRR

Primary

Shanks1998

CPS-I

3 to 4

1.51

(0.86, 2.45)

IRR

Primary

Shanks1998

CPS-I

5+

2.21

(1.40, 3.32)

IRR

Primary

Shanks1998

CPS-I

1 to 2

0.56

(0.06, 2.01)

IRR

Secondary

Shanks1998

CPS-I

3 to 4

1.9

(0.82, 3.74)

IRR

Secondary

Shanks1998

CPS-I

5+

3.71

(1.78, 6.83)

IRR

Secondary

Shapiro2000

CPS-II

1 to 2

0.6

(0.30, 1.40)

HR

Primary

Shapiro2000

CPS-II

3+

1.6

(1.00, 2.50)

HR

Primary

Shanks1998

CPS-I

None

1.55

(1.12, 2.07)

IRR

Primary

Shanks1998

CPS-I

Slight

2.16

(0.99, 4.10)

IRR

Primary

Shanks1998

CPS-I

2.26

(0.45, 6.60)

IRR

Primary

Shanks1998

CPS-I

None

1.55

(0.80, 2.72)

IRR

Secondary

Shanks1998

CPS-I

Slight

1.92

(0.52, 4.92)

IRR

Secondary

Shanks1998

CPS-I

2.53

(0.51, 7.39)

IRR

Secondary

Shapiro2000

CPS-II

0.9

(0.50, 1.50)

HR

Primary

Shapiro2000

CPS-II

Inhalation

2.7

(1.50, 4.80)

HR

Primary

Shapiro2000

CPS-II

<25

1.5

(0.70, 3.30)

HR

Primary

Shapiro2000

CPS-II

25+

1.1

(0.70, 1.80)

HR

Primary