Table 1 Demographic characteristics of head and neck cancer patients who underwent surgery with or without neck dissection between 1999 and 2012
PTE + ND (N = 7460) | PTE (N = 3730) | ||
|---|---|---|---|
N (%) | N (%) | P | |
Male | 6500 (87.13) | 3113 (83.46) | < 0.001 |
Age (years) | |||
20–44 | 1465 (19.64) | 783 (20.99) | 0.08 |
45–59 | 3237 (43.39) | 1543 (41.37) | |
≥ 60 | 2758 (36.97) | 1404 (37.64) | |
Region of Taiwan | 0.80 | ||
North | 2504 (33.57) | 1271 (34.08) | |
Central | 1666 (22.33) | 836 (22.41) | |
South | 2759 (36.98) | 1347 (36.11) | |
East and offshore | 531 (7.12) | 276 (7.40) | |
Enrollee category | 0.24 | ||
1 | 565 (7.57) | 314 (8.42) | |
2 | 2410 (32.31) | 1227 (32.90) | |
3 | 3765 (50.47) | 1818 (48.74) | |
4 | 720 (9.65) | 371 (9.95) | |
Monthly income | 0.004 | ||
≤ NT$ 15,840 | 2127 (28.51) | 1139 (30.54) | |
NT$ 15,841–25,000 | 3997 (53.58) | 1873 (50.21) | |
≥ NT$ 25,001 | 1336 (17.91) | 718 (19.25) | |
Urbanization Level | 0.02 | ||
1 (most urbanized) | 1868 (25.04) | 999 (26.78) | |
2 | 1890 (25.34) | 860 (23.06) | |
3 (least urbanized) | 3702 (49.62) | 1871 (50.16) | |
Charlson comorbidity index | 0.91 | ||
0–2 | 3458 (46.35) | 1739 (46.62) | |
3–4 | 2367 (31.73) | 1168 (31.31) | |
≥ 5 | 1635 (21.92) | 823 (22.06) | |
Subsequent therapy | |||
Surgery | 2176 (29.17) | 704 (18.87) | < 0.001 |
Radiotherapy | 1890 (25.34) | 529 (14.18) | < 0.001 |
Chemotherapy | 1544 (20.70) | 387 (10.38) | < 0.001 |