Table 1.
Characteristics of cases and controls
| Variable / Category | Cases (n=150) |
Controls (n=150) |
P | ||
|---|---|---|---|---|---|
| N | % | N | % | ||
| Site of enrollment | |||||
| JMH | 80 | 53.3 | 71 | 47.3 | 0.299 |
| UM | 70 | 46.7 | 79 | 52.7 | |
| Age, years | |||||
| <40 | 4 | 2.7 | - | - | 0.214 |
| 40 |- <50 | 20 | 13.3 | 29 | 19.3 | |
| 50 |- <60 | 60 | 40.0 | 56 | 37.3 | |
| 60 |- <70 | 44 | 29.3 | 44 | 29.3 | |
| ≥70 | 22 | 14.4 | 21 | 14.0 | |
| <60 | 84 | 66.0 | 85 | 56.7 | 0.449 |
| ≥60 | 66 | 44.0 | 65 | 43.3 | |
| Mean (Standard deviation) | 58.6 (10.5) | 58.5 (9.7) | 0.887 | ||
| Median (Range) | 58 (28 – 88) | 58.5 (40 – 87) | |||
| Gender | |||||
| Male | 121 | 80.7 | 118 | 78.7 | 0.907 |
| Female | 29 | 19.3 | 32 | 21.3 | |
| Race | |||||
| White | 123 | 82.6 | 118 | 79.7 | 0.534 |
| Black | 26 | 17.4 | 30 | 20.3 | |
| Asian/Other/Missing (1 case Other, 1 control Asian, and 1 control missing) |
1 | 2 | |||
| Ethnicity | |||||
| Hispanic | 77 | 51.3 | 93 | 62.0 | 0.062 |
| Non-Hispanic | 73 | 48.7 | 57 | 38.0 | |
| SES1 | |||||
| Low | 100 | 66.7 | 90 | 60.0 | 0.231 |
| High | 50 | 33.3 | 60 | 40.0 | |
| Oral health score | |||||
| Poor/Fair | 80 | 64.0 | 87 | 58.0 | 0.310 |
| Good | 45 | 36.0 | 63 | 42.0 | |
| Missing | 25 | ||||
| Teeth removed | |||||
| None/1 to 5 | 86 | 58.9 | 92 | 63.0 | 0.301 |
| 6 or more but not all | 36 | 24.7 | 39 | 26.7 | |
| All | 24 | 16.4 | 15 | 10.3 | |
| Missing | 4 | 4 | |||
| Smoking status | |||||
| Never | 33 | 22.0 | 32 | 21.3 | 0.889 |
| Ever | 117 | 78.0 | 118 | 78.7 | |
| Drinking habits2 | |||||
| Non-drinker/Mild | 78 | 52.0 | 85 | 56.7 | 0.279 |
| Moderate | 24 | 16.0 | 30 | 20.0 | |
| Heavy | 48 | 32.0 | 35 | 23.3 | |
Socioeconomic status (SES) categories high and low were defined based on income (≤$25,000, >$25,000), education (“≤grade 12 or GED”, “some college or college graduate”) and employment (“out-of/unable-to work”, “occupation with some income”). (See online Version Only -Supplementary Table 3). High SES: income >$25,000 or, if income was missing, “some college or college graduate” AND “occupation with some income”. Low SES: income ≤$25,000, or, if income was missing, low education and/or “out-of/unable-to work”; 1 subject missing income and education with “occupation with some income” was classified as low SES.
Drinking habits: Non-drinker/Mild: past drinking ≤2 drinks/day or current drinking ≤2 drinks/day for 1–15 days/month; Moderate: past drinking 3 to <5 drinks/day or current drinking ≤2 drinks/day for 16–30 days/month or ≥3 drinks/day for 1–15 days/month; Heavy: past drinking 5 or more drinks/day or current drinking ≥3 drinks /day for 16–30 days/month.