Lung cancer stage at diagnosis and initial chest X-ray results for those who were diagnosed after 6 weeks (42 days) following initial chest X-raya
| Patients diagnosed after 6 weeks of initial CXR, n (%) | Positive initial CXR, n (%) | Negative initial CXR, n (%) | |
|---|---|---|---|
| Stage I/II | 529 (42.5) | 404 (45.2) | 125 (35.7) |
| Stage III/IV | 715 (57.5) | 490 (54.8) | 225 (64.3) |
| Total | 1244 | 894 | 350 |
↵a Those with unknown stage are not included in order to maintain anonymity. Pearson’s χ2 test did demonstrate a statistically significant association, χ2 (1, N = 1244) 9.24, P = 0.002. CXR = chest X-ray.