Table 1.
Description of oral and pharyngeal squamous cell carcinoma cases by dental insurance status at diagnosis.
| Dental Insurance Status at Diagnosis |
Frequency of Dental Visits |
||||||
|---|---|---|---|---|---|---|---|
| Insured (n=263) |
Uninsured (n=152) |
P-value | At Least Annually (n=307) |
Infrequently (every 2–10 yrs) (n=76) |
Rarely or never (n=43) |
P-value | |
| Age, mean years (median, sd) | 56.2 (56, 10.7) | 63.3 (64, 11.2) | <0.001a | 58.8 (59, 10.9) | 58.5 (57,11.9) | 61.3 (63, 13.8) | 0.36c |
| Gender | |||||||
| Female | 53 (20.2%) | 55 (36.2%) | <0.001b | 84 (27.4%) | 19 (25.0%) | 11 (25.6%) | 0.94b |
| Male | 210 (79.9%) | 97 (63.8%) | 223 (72.6%) | 57 (75.0%) | 32 (74.4%) | ||
| Race | |||||||
| White | 243 (92.8%) | 141 (92.8%) | > 0.99b | 15 (4.9%) | 6 (7.9%) | 9 (20.9%) | 0.002b |
| Non-White | 19 (7.3%) | 11 (7.2%) | 291 (95.1%) | 70 (92.1%) | 34 (79.1%) | ||
| Cigarette smoking | |||||||
| Never-smoker | 92 (35.0%) | 43 (28.3%) | 0.25b | 116 (37.8%) | 18 (23.7%) | 4 (9.3%) | <0.001b |
| 1st tertile (0.1-16.0 pack-years) | 61 (23.2%) | 34 (22.4%) | 72 (23.5%) | 14 (18.4%) | 11 (25.6%) | ||
| 2nd tertile (16.1-36.9 pack-years) | 60 (22.8%) | 34 (22.4%) | 70 (22.8%) | 20 (26.3%) | 6 (14.0%) | ||
| 3rd tertile (37.0–202.5 pack-years) | 50 (19.0%) | 41 (27.0%) | 49 (16.0%) | 24 (31.6%) | 22 (51.2%) | ||
| Alcohol consumption | |||||||
| Non-drinker | 19 (7.2%) | 23 (15.1%) | 0.04b | 30 (9.8%) | 7 (9.2%) | 5 (11.6%) | <0.001b |
| < 14 drinks per week | 147 (55.9%) | 75 (49.3%) | 185 (60.3%) | 34 (44.7%) | 10 (23.3%) | ||
| > 14 drinks per week | 97 (36.9%) | 54 (35.5%) | 92 (30.0%) | 35 (46.1%) | 28 (65.1%) | ||
| Household income (annual) | |||||||
| < $20,000 | 17 (7.3%) | 29 (23.0%) | <0.001b | 14 (5.3%) | 21 (31.8%) | 13 (34.2%) | <0.001b |
| $20,000-$49,999 | 38 (16.2%) | 30 (23.8%) | 38 (14.4%) | 17 (25.8%) | 16 (42.1%) | ||
| 179 (76.5%) | 67 (53.2%) | 212 (80.3%) | 28 (42.4%) | 9 (23.7%) | |||
| Highest level of education | |||||||
| < High school | 15 (5.7%) | 16 (10.5%) | 0.10b | 9 (2.9%) | 8 (10.5%) | 14 (32.6%) | <0.001b |
| High school | 63 (24/0%) | 48 (31.6%) | 64 (20.9%) | 29 (38.2%) | 21 (48.8%) | ||
| Some college/associates/technical school | 45 (17.1%) | 20 (13.2%) | 54 (17.6%) | 12 (15.8%) | 4 (9.3%) | ||
| College (4-year) | 72 (27.4%) | 38 (25.0%) | 90 (29.3%) | 19 (25.0%) | 6 (9.3%) | ||
| Graduate or professional degree | 68 (25.9%) | 30 (19.7%) | 90 (29.3%) | 8 (10.5%) | 0 (0.0%) | ||
| Tumor site | |||||||
| Oral cavity | 152 (57.8%) | 95 (62.5%) | 0.35b | 190 (61.9%) | 39 (51.3%) | 25 (58.1%) | 0.24b |
| Pharynx | 111 (42.2%) | 57 (37.5%) | 117 (38.1%) | 37 (48.7%) | 18 (41.9%) | ||
| Stage at Diagnosis (AJCC stage group) | |||||||
| AJCC Stage at Diagnosis | |||||||
| I | 35 (13.3%) | 25 (16.5%) | 0.84b | 51 (16.6%) | 9 (11.8%) | 2 (4.7%) | 0.25b |
| II | 31 (11.8%) | 18 (11.8%) | 34 (11.1%) | 9 (11.8%) | 7 (16.3%) | ||
| III | 38 (14.5%) | 22 (14.5%) | 46 (15.0%) | 14 (18.4%) | 4 (9.3%) | ||
| IV | 159 (60.5%) | 87 (57.2%) | 176 (57.3%) | 44 (57.9%) | 30 (69.8%) | ||
a
2-sample t-test
b
Fisher's exact test
c
One-way ANOVA Abbreviations: sd = standard deviation; AJCC = American Joint Committee on Cancer