Table 1.
Likelihood of contracting dermatophyte onychomycosis per patient sex, age group, and U.S. census region.
| Variable | Dermatophytes | T. rubrum Complex | T. mentagrophytes Complex | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N | % | OR (95% CI) | N | % | OR (95% CI) | N | % | OR (95% CI) | |
| Sex | |||||||||
| Male | 128,751 | 46.7 | Referent | 111,612 | 40.5 | Referent | 10,985 | 4.0 | Referent |
| Female | 98,889 | 23.0 | 0.3 (0.3, 0.3) | 82,095 | 19.1 | 0.3 (0.3, 0.4) | 12,283 | 2.9 | 0.7 (0.7, 0.7) |
| Age group | |||||||||
| <18 years | 5477 | 27.7 | 0.6 (0.6, 0.6) | 5210 | 26.4 | 0.6 (0.6, 0.7) | 55 | 0.3 | 0.2 (0.2, 0.3) |
| 18–44 years | 57,888 | 39.2 | Referent | 53,446 | 36.2 | Referent | 2029 | 1.4 | Referent |
| 45–64 years | 83,877 | 32.2 | 0.7 (0.7, 0.7) | 72,695 | 27.9 | 0.7 (0.7, 0.7) | 7144 | 2.7 | 2.0 (1.9, 2.1) |
| ≥65 years | 81,948 | 29.5 | 0.7 (0.6, 0.7) | 63,577 | 22.9 | 0.5 (0.5, 0.5) | 14,239 | 5.1 | 3.9 (3.7, 4.1) |
| Region | |||||||||
| Northeast | 72,646 | 34.7 | 1.1 (1.1, 1.1) | 62,818 | 30.0 | 1.1 (1.1, 1.2) | 6617 | 3.2 | 0.9 (0.9, 0.9) |
| Midwest | 34,005 | 32.2 | Referent | 28,827 | 27.3 | Referent | 3676 | 3.5 | Referent |
| South | 103,046 | 30.4 | 0.9 (0.9, 0.9) | 86,997 | 25.7 | 0.9 (0.9, 0.9) | 10,836 | 3.2 | 0.9 (0.9, 1.0) |
| West | 19,791 | 34.9 | 1.1 (1.1, 1.2) | 16,617 | 29.3 | 1.1 (1.1, 1.1) | 2334 | 4.1 | 1.2 (1.1, 1.3) |
OR ≤ 0.5 or ≥1.5 are shown in bold.