Table 2.
Type of prior cancer and incidence rates among NLST participants with a prior history of cancer undergoing low dose computed tomography, stratified by gender
| Overall | Female | Male | ||||
|---|---|---|---|---|---|---|
| Type of Prior Cancer |
N | Incidence rate per 100,000 person-years |
N | Incidence rate per 100,000 person-years |
N | Incidence rate per 100,000 person-years |
| All | 1,071 | 66.9 | 782 | 121.3 | 289 | 30.2 c |
| Bladder a | 119 | 7.4 | 22 | 3.4 | 97 | 10.1 |
| Breast | 346 | 21.6 | 342 | 53.0 | 4 | 0.4 |
| Cervical | 359 | 55.7 | 359 | 55.7 | n/a | n/a |
| Colorectal | 108 | 6.7 | 39 | 6.0 | 69 | 7.2 |
| Esophageal | 12 | 0.8 | 3 | 0.5 | 9 | 0.9 |
| Head and Neck b | 79 | 4.9 | 13 | 2.0 | 66 | 6.9 |
| Kidney | 35 | 2.2 | 9 | 1.4 | 26 | 2.7 |
| Lung | 10 | 0.6 | 1 | 0.2 | 9 | 0.9 |
| Pancreas | 4 | 0.2 | 0 | - | 4 | 0.4 |
| Stomach | 11 | 0.7 | 3 | 0.5 | 8 | 0.8 |
| Thyroid | 34 | 2.1 | 19 | 2.9 | 15 | 1.6 |
a
Bladder includes transitional cell
b
Head and neck cancers include oral, larynx, nasal, pharynx (n=1 have both larynx and oral, counted once)
c
A history of prostate cancer was not obtained which may explain the lower cancer incidence rate in men.