Table 2.
Selected characteristics of patients included in the study
|
|
Patients Diagnosed with Thyroid
|
Patients not Diagnosed with Thyroid
|
P Valueb | |||
|---|---|---|---|---|---|---|
| No. (%) (n = 11 618) | Cancers per 100a | Cases (%) (n = 96) | Controls (%) (n = 369) | |||
| Age, Mean [SD] | 51.6, SD [15.5] | 44.9, SD [15.3] | 45.6, SD [14.9] | .61 | ||
|
| ||||||
| Age Category | ||||||
| <40 yrs | 3021 (26.0) | 1.5 | 41 (42.7) | 164 (44.1) |
|
.71 |
|
| ||||||
| 41–60yrs | 5158 (44.4) | 0.8 | 36 (37.5) | 132 (35.5) | ||
|
| ||||||
| >60 yrs | 3439 (29.6) | 0.6 | 19 (19.8) | 76 (20.4) | ||
|
| ||||||
| Sex | ||||||
| Female | 9341 (80.4) | 1.1 | 71 (74.0) | 286 (77.5) |
|
.46 |
|
| ||||||
| Male | 2277 (19.6) | 1.5 | 25 (26.0) | 83 (22.5) | ||
|
| ||||||
| Number of Nodules | ||||||
| 0 | 3c (3.1) | 161d (43.6) |
|
< .001 | ||
|
| ||||||
| 1 | 43c (44.8) | 83d (22.5) | ||||
|
| ||||||
| 2 | 21c (21.9) | 63d (17.1) | ||||
|
| ||||||
| 3 | 12c (12.5) | 29d (7.9) | ||||
|
| ||||||
| 4 | 17c (17.7) | 33d (8.9) | ||||
a
To calculate the cancer rates, we included all cancers (n=105) not just the 96 reviewed
b
Difference between Cases / Controls.
c
There were a total of 189 nodules diagnosed in the 96 cancer patients, including 102 cancer nodules and 87 benign nodules. There were 3 patients diagnosted with cancer in whom no nodules were identified.
d
There were 428 benign nodules diagnosed in patients selected as controls.