Item | Patients | Controls | P-value | ||
---|---|---|---|---|---|
n | % | n | % | ||
Number | 68 | 121 | |||
Gender | |||||
males | 37 | 54.4 | 74 | 61.2 | 0.872a |
females | 26 | 38.2 | 47 | 38.8 | |
unknown | 5 | 7.4 | 0 | 0.0 | |
Age | |||||
~64 | 21 | 30.9 | 50 | 41.3 | |
65~69 | 13 | 19.1 | 29 | 24.0 | |
70~74 | 13 | 19.1 | 20 | 16.5 | |
75~ | 16 | 23.5 | 22 | 18.2 | |
unknown | 5 | 7.4 | 0 | 0.0 | |
Mean ± S.D. | 67.3 ± 10.9 | 67.4 ± 6.7 | 0.923b | ||
Smoking status (Pack-years) | |||||
non-smokers (Pack-years = 0) | 36 | 52.9 | 55 | 45.5 | 0.253a |
smokers (Pack-years > 0) | 26 | 38.2 | 60 | 49.6 | |
unknown | 6 | 8.8 | 6 | 5.0 | |
Subsites | |||||
colon | 40 | 58.8 | |||
rectum | 23 | 33.8 | |||
unknown | 5 | 7.4 |