Table 2. Patient, tumor, and treatment characteristics in the Asian subgroups with lung or bronchial cancer.
| Characteristic | Filipino % (n = 10,675) | Japanese % (n = 7346) | Chinese % (n = 10,561) | Hawaiian/Pacific Islander % (n = 4639) | Korean % (n = 3108) | Indian/Pakistani % (n = 1434) | Vietnamese % (n = 3759) | Other % (n = 3004) | P |
|---|---|---|---|---|---|---|---|---|---|
| Age at diagnosis, years | 0.0001a | ||||||||
| Mean (median) | 68.4 (69.0) | 72.9 (74.0) | 70.6 (72.0) | 65.6 (66.0) | 68.9 (70.0) | 65.2 (67.0) | 65.6 (67.0) | 67.3 (69.0) | |
| Age group, years | <0.0001 | ||||||||
| <30 | 0.2 | 0.04 | 0.2 | 0.2 | 0.2 | 1.1 | 0.3 | 0.5 | |
| 30–39 | 1.0 | 0.4 | 1.2 | 1.1 | 0.8 | 3.2 | 2.6 | 1.7 | |
| 40–49 | 4.6 | 2.0 | 4.8 | 7.3 | 5.0 | 7.3 | 8.6 | 7.2 | |
| 50–59 | 15.8 | 8.2 | 12.3 | 20.7 | 14.5 | 17.6 | 19.8 | 18.1 | |
| 60–69 | 29.6 | 22.2 | 22.7 | 32.4 | 28.5 | 29.8 | 26.9 | 24.3 | |
| 70–79 | 32.0 | 39.6 | 33.7 | 27.6 | 32.1 | 29.2 | 27.6 | 30.7 | |
| ≥80 | 16.8 | 27.6 | 25.1 | 10.7 | 18.9 | 11.8 | 14.2 | 17.5 | |
| Sex | <0.0001 | ||||||||
| Female | 36.6 | 44.0 | 42.0 | 42.4 | 42.6 | 33.5 | 34.4 | 46.3 | |
| Male | 63.4 | 56.0 | 58.0 | 57.6 | 57.4 | 66.5 | 65.6 | 53.7 | |
| Marital status | <0.0001b | ||||||||
| Single | 7.1 | 10.1 | 7.3 | 12.0 | 8.2 | 6.8 | 11.4 | 11.8 | |
| Married | 70.1 | 60.0 | 70.3 | 54.4 | 68.7 | 74.7 | 69.7 | 64.2 | |
| Other | 22.8 | 29.9 | 22.4 | 33.6 | 23.1 | 18.5 | 18.9 | 24.0 | |
| TNM stage | <0.0001b | ||||||||
| I | 17.5 | 19.5 | 17.9 | 16.4 | 18.1 | 20.4 | 17.8 | 19.0 | |
| II | 3.8 | 4.3 | 3.5 | 3.5 | 4.0 | 3.2 | 3.4 | 3.3 | |
| III | 27.8 | 29.5 | 27.7 | 30.3 | 29.9 | 25.1 | 25.6 | 26.3 | |
| IV | 50.9 | 46.7 | 50.9 | 49.8 | 48.0 | 51.3 | 53.2 | 51.4 | |
| SEER summary stage | <0.0001b | ||||||||
| Localized | 16.9 | 18.2 | 17.0 | 15.7 | 17.1 | 17.7 | 17.0 | 17.9 | |
| Regional | 22.9 | 26.1 | 22.4 | 25.4 | 24.2 | 25.1 | 21.3 | 22.7 | |
| Distant | 60.2 | 55.7 | 60.6 | 58.9 | 58.7 | 57.2 | 61.7 | 59.4 | |
| Cancer-directed surgery | <0.0001b | ||||||||
| Not performed | 79.9 | 77.1 | 78.5 | 81.6 | 77.9 | 75.2 | 78.6 | 78.0 | |
| Performed | 20.1 | 22.9 | 21.5 | 18.4 | 22.1 | 24.8 | 21.4 | 22.0 | |
| Reason for no surgery | <0.0001b | ||||||||
| Died | 2.0 | 3.5 | 2.4 | 3.7 | 2.7 | 3.1 | 1.5 | 1.9 | |
| Not recommended | 94.8 | 93.3 | 94.3 | 92.0 | 94.1 | 94.1 | 95.7 | 95.4 | |
| Patient refused | 3.2 | 3.2 | 3.3 | 4.3 | 3.2 | 2.8 | 2.8 | 2.7 | |
| Radiation treatment | <0.0001b | ||||||||
| Not received | 62.3 | 60.6 | 64.8 | 56.6 | 64.3 | 62.9 | 64.4 | 68.4 | |
| Received | 37.7 | 39.4 | 35.2 | 43.4 | 35.7 | 37.1 | 35.6 | 31.6 | |
| Lymph node status | <0.0001 | ||||||||
| Negative | 49.5 | 55.9 | 54.8 | 49.8 | 50.7 | 55.5 | 52.4 | 57.0 | |
| Positive | 50.5 | 44.1 | 45.2 | 50.2 | 49.3 | 44.5 | 47.6 | 43.0 | |
| Tumor location | <0.0001 | ||||||||
| Main bronchus | 4.0 | 3.6 | 3.8 | 4.2 | 4.9 | 3.8 | 3.5 | 4.7 | |
| Upper lobe, lung | 46.6 | 46.5 | 45.1 | 48.1 | 41.3 | 44.7 | 45.0 | 45.3 | |
| Middle lobe, lung | 4.8 | 4.5 | 5.4 | 4.5 | 4.6 | 4.6 | 5.4 | 4.9 | |
| Lower lobe, lung | 24.4 | 25.3 | 26.2 | 22.1 | 27.4 | 27.9 | 27.4 | 24.9 | |
| Overlapping | 1.6 | 1.5 | 1.1 | 1.3 | 1.2 | 1.1 | 1.5 | 1.2 | |
| Lung, NOS | 18.6 | 18.6 | 18.4 | 19.8 | 20.6 | 17.9 | 17.2 | 19.0 | |
| Tumor histology | <0.0001 | ||||||||
| Small cell | 17.1 | 19.1 | 15.1 | 21.9 | 19.4 | 18.1 | 17.4 | 18.2 | |
| Squamous cell | 15.7 | 18.7 | 12.4 | 19.8 | 20.1 | 16.0 | 12.4 | 12.7 | |
| Large cell | 3.4 | 3.9 | 4.2 | 3.5 | 3.1 | 3.2 | 3.4 | 3.7 | |
| Adenocarcinoma | 43.5 | 35.1 | 44.5 | 33.7 | 36.8 | 42.0 | 48.4 | 44.8 | |
| BAC | 4.9 | 4.2 | 5.5 | 2.7 | 4.3 | 4.5 | 5.0 | 4.5 | |
| Others | 15.4 | 19.0 | 18.3 | 18.4 | 16.3 | 16.2 | 13.4 | 16.1 |
NOS: not otherwise specified
a Kruskal-Wallis equality-of-populations rank test.
b calculated after exclusion of patients in the Unknown category.