TABLE 2.
Characteristics of 155 patients with positive direct KOH examination and finally included on the study
| TDO* | DLSO** | TRACHYONYCHIA | P | ||||
|---|---|---|---|---|---|---|---|
| # | % | # | % | # | % | ||
| POSITIVE KOH EXAMINATION | 87 | 56.13 | 67 | 43.23 | 1 | 0.65 | |
| GENDER—FEMALE | 59 | 38.06 | 39 | 25.16 | 1 | 0.65 | 0.353 |
| EVOLUTION | 0.309 | ||||||
| <25 months | 33 | 21.29 | 31 | 20.00 | 1 | 0.65 | |
| 25–48 months | 14 | 9.03 | 11 | 7.10 | 0 | 0.00 | |
| > 49 months | 40 | 25.81 | 25 | 16.13 | 0 | 0.00 | |
| FINDINGS IN DIRECT KOH EXAMINATION | 0.027 | ||||||
| Fungal hyphae | 77 | 49.68 | 59 | 38.06 | 0 | 0.00 | |
| Yeasts | 10 | 6.45 | 8 | 5.16 | 1 | 0.65 | |
| DERMOSCOPIC PATTERN | |||||||
| Spiked pattern | 22 | 14.19 | 17 | 10.97 | 0 | 0.00 | 0.844 |
| Longitudinal striae | 51 | 32.90 | 42 | 27.10 | 1 | 0.65 | 0.633 |
| Linear edge | 21 | 13.55 | 13 | 8.39 | 0 | 0.00 | 0.678 |
| Distal irregular termination | 41 | 26.45 | 26 | 16.77 | 0 | 0.00 | 0.4 |
| CULTURE | |||||||
| Positive | 23 | 14.84 | 14 | 9.03 | 0 | 0.00 | 0.992 |
| Tricophyton rubrum | 9 | 5.81 | 7 | 4.52 | 0 | 0.00 | |
| Trichosporon sp. | 3 | 1.94 | 1 | 0.65 | 0 | 0.00 | |
| Candida sp. | 3 | 1.94 | 2 | 1.29 | 0 | 0.00 | |
| Bacteria | 8 | 5.16 | 4 | 2.58 | 0 | 0.00 | |
| Negative | 64 | 41.29 | 53 | 34.19 | 1 | 0.65 | |
*
Total dystrophic onychomycosis (TDO)
**
Distal lateral subungual onychomycosis (DLSO)
Note: White superficial onychomycosis (WSO) was not included in this analysis because no patient had a positive direct KOH examination.