Table II.
General characteristics for the DTC case (n=106) and control (n=212) populations.
| Characteristics | Controls n (%) | Cases n (%) | P-valuec |
|---|---|---|---|
| Gender | |||
| Male | 31 (14.6) | 16 (15.1) | 1.00 |
| Female | 181 (85.4) | 90 (84.9) | |
| Agea,b | |||
| <30 | 10 (4.7) | 4 (3.8) | 0.98 |
| 30–49 | 75 (35.4) | 38 (35.8) | |
| 50–69 | 98 (46.2) | 49 (46.2) | |
| ≥70 | 29 (13.7) | 15 (14.2) | |
| Smoking habits | |||
| Non-smokers | 174 (82.1) | 94 (88.7) | 0.19 |
| Smokers | 36 (17.0) | 12 (11.3) | |
| Missing | 2 (0.9) | 0 (0.0) |
a
Age of diagnosis, for cases.
b
Age at the time of diagnosis of the matched case, for controls.
c
P-value for cases vs. control group determined by two-sided Fisher's exact test (gender, smoking habits) or χ2 test (age). DTC, well-differentiated thyroid cancer.