The Influence of Smoking, Gender, and Family History on Colorectal Adenomas
Table 4
Stratified logistic regression models of smoking and adenoma occurrence among individuals undergoing screening colonoscopy in the New Hampshire colonscopy Registry from 2004–2006.
Adenoma v. No Adenoma
Model
Odds Ratio
Full Model ()
Smoking
No pack-years
1.00 (referent)
15 pack-years or fewer
1.07 (0.87–1.32)
More than 15 pack-years
1.54
Sex
Men
1.00 (referent)
Women
Negative
1.00 (referent)
Positive
Stratified by Sex
Male ()
No pack-years
1.00 (referent)
15 pack-years or fewer
More than 15 pack-years
Female ()
No pack-years
1.00 (referent)
15 pack-years or fewer
0.85 (0.61–1.14)
More than 15 pack-years
Stratified by Family History
Negative ()
No pack-years
1.00 (referent)
15 pack-years or fewer
1.16 (0.92–1.46)
More than 15 pack-years
Positive ()
No pack-years
1.00 (referent)
15 pack-years or fewer
0.77 (0.4 7–1.26)
More than 15 pack-years
1.50 (0.94–2.38)
ratios are adjusted for age in all models, and for family history in the sex-stratified models, and for sex in the family history-stratified models. history was defined as a reported diagnosis of colon or rectal cancer in a mother, father, sibling, or child of the patient. . .