Table 1.
Demographical and clinical features of Community and Hospital Lung Cancer Cohorts, Diagnosed 1997-2011
| Characteristics* | Prospectively Enrolled and Followed 6838 Lung Cancer Patients |
P value | |
|---|---|---|---|
| Community Cohort N=850 | Hospital Cohort N=5988 | ||
| Age at diagnosis, year | <0.0001 | ||
| Mean ± SD | 68.8 (11.0) | 65.0 (11.1) | |
| Median (Q1, Q3) | 70.0 (62.0, 77.0) | 66.0 (58.0, 73.0) | |
| Gender | 0.2602 | ||
| Male | 444 (52.2%) | 3251 (54.3%) | |
| Mean age ± SD | 68.9 (10.6) | 66.4 (10.9) | |
| Median age (Q1, Q3) | 70.0 (63.0, 77.0) | 68.0 (60.0, 74.0) | |
| Female | 406 (47.8%) | 2737 (45.7%) | |
| Mean age ± SD | 68.7 (11.4) | 63.4 (11.2) | |
| Median age (Q1, Q3) | 70.0 (61.0, 77.0) | 65.0 (56.0, 71.0) | |
| Race | 0.0335 | ||
| White | 811 (95.4%) | 5577 (93.5%) | |
| Others | 39 (4.6%) | 386 (6.5%) | |
| Cigarette smoking status | <0.0001 | ||
| Never smoker | 77 (9.0%) | 1008 (16.8%) | |
| Former smoker | 422 (49.8%) | 3056 (51.0%) | |
| Current smoker | 350 (41.2%) | 1924 (32.1%) | |
| Smoking pack-years (for smokers) | 0.0025 | ||
| 1-19 | 88 (11.4%) | 781 (15.8%) | |
| 20-29 | 82 (10.6%) | 583 (11.8%) | |
| ≥30 | 601 (78.0%) | 3580 (72.4%) | |
| Quit-years (for former smokers) | 0.0001 | ||
| <15 years | 241 (57.1%) | 1443 (47.2%) | |
| ≥15 years | 181 (42.9%) | 1613 (52.8%) | |
Missing data on “Race” of 13 patients (0.2%) in Hospital Cohort, and on “Smoking pack-year” of 1 (0.1%) patient in Community Cohort and of 27 patients (0.5%) in Hospital Cohort, respectively.
*
Data are presented as mean ± SD or No (percentage), unless otherwise indicated.