Table 1. Baseline demographic and clinical characteristics of patients.
| Total | Married | Unmarriedb | P valuec | |
|---|---|---|---|---|
| 600 (100) | 344 (57.33) | 256 (42.67) | ||
| Sex | < 0.001 | |||
| Male | 332 (55.33) | 216 (62.79) | 116 (45.31) | |
| Female | 268 (44.67) | 128 (37.21) | 140 (54.69) | |
| Age at diagnosis, y ± SD | 63.63 ± 14.53 | 63.65 ± 12.98 | 63.60 ± 12.98 | 0.963 |
| Race | 0.005 | |||
| White | 474 (79.00) | 274 (79.65) | 200 (78.13) | |
| Black | 77 (12.83) | 34 (9.88) | 43 (16.80) | |
| Other | 49 (8.17) | 36 (10.47) | 14 (5.08) | |
| Disease Extension | 0.211 | |||
| Localized | 220 (36.67) | 134 (38.95) | 86 (33.59) | |
| Regional | 205 (34.17) | 110 (31.98) | 95 (37.11) | |
| Distant | 96 (16.00) | 50 (14.53) | 46 (17.97) | |
| Unknown | 79 (13.17) | 50 (14.53) | 29 (11.33) | |
| Grade | 0.368 | |||
| Grade I (well differentiated) | 29 (4.83) | 14 (4.07) | 15 (5.86) | |
| Grade II (moderately differentiated) | 144 (24.00) | 78 (22.67) | 66 (25.78) | |
| Grade III(poorly differentiated) | 141 (23.50) | 82 (23.84) | 59 (23.05) | |
| Grade IV(undifferentiated) | 26 (4.33) | 19 (5.52) | 7 (2.73) | |
| Unknown | 260 (43.33) | 151 (43.90) | 109 (42.58) | |
| Histology | 0.609 | |||
| Squamous cell carcinoma | 299 (49.83) | 171 (49.71) | 128 (50.00) | |
| Adenoid cystic carcinoma | 107 (17.83) | 64 (18.60) | 43 (16.80) | |
| Small cell carcinoma | 51 (8.50) | 25 (7.27) | 26 (10.16) | |
| Others | 143 (23.83) | 84 (24.42) | 59 (23.05) | |
| Low-Grade Malignant Tumorsd | 0.729 | |||
| Yes | 133 (22.17) | 78 (22.67) | 55 (21.48) | |
| No | 467 (77.83) | 266 (77.33) | 201 (78.52) | |
| Surgery | 0.744 | |||
| Total resection | 39 (6.50) | 25 (7.27) | 14 (5.47) | |
| Subtotal resection | 230 (38.33) | 134 (38.95) | 96 (37.50) | |
| No cancer directed surgery | 323 (53.83) | 180 (52.33) | 143 (55.86) | |
| Unknown | 8 (1.33) | 5 (1.45) | 3 (1.17) | |
| Radiotherapy | 0.657 | |||
| Radiotherapy | 378 (63.00) | 222 (64.53) | 156 (60.94) | |
| No radiotherapy | 199 (33.17) | 109 (31.69) | 90 (35.16) | |
| Unknown | 23 (3.83) | 13 (3.78) | 10 (3.91) | |
| High School Education Ratee | 0.806 | |||
| Lower 50% | 327 (54.50) | 186 (54.07) | 141 (55.08) | |
| Upper 50% | 273 (45.50) | 158 (45.93) | 115 (44.92) | |
| Median Household Incomee | 0.339 | |||
| Lower 50% | 134 (22.33) | 72 (20.93) | 62 (24.22) | |
| Upper 50% | 466 (77.77) | 272 (79.07) | 194 (75.78) | |
| Unemployede | 0.890 | |||
| Lower 50% | 309 (51.50) | 178 (51.74) | 131 (51.17) | |
| Upper 50% | 291 (48.50) | 166 (48.26) | 125 (48.83) | |
| White Collare | 0.787 | |||
| Lower 50% | 184 (30.67) | 107 (31.10) | 77 (30.08) | |
| Upper 50% | 416 (69.27) | 237 (68.90) | 179 (69.92) |
a
Data were presented as number (percentage) of patients.
b
Unmarried group included divorced cases, single (never married) cases, widowed cases and cases separated with spouse.
c
p values were from the statistical analysis between married and unmarried patients.
d
Low-grade malignant tumors were defined as carcinoids, adenoid cystic carcinomas and mucoepidermoid carcinomas.
e
Data generated from 2000 national census data. Lower 50% indicated the patients live in counties below median level of national statistics. Upper 50% indicated the patients live in counties above median level of national statistics.
SEER 1990–2010 (n = 600)a.