Table 1.
Variable | Cases (no=30) | Controls (no=30) | P-value | |||
---|---|---|---|---|---|---|
Age (years) Min–Max Mean±SD Median |
19–44 29.83±7.65 28.5 |
19–45 29.93±6.60 29.0 |
t=0.852 | 0.398 | ||
Age of onset Min–Max Mean±SD Median |
18.40–43.10 28.91±7.69 27.60 |
————— | ———- | ——— | ||
Duration of hair loss (months) Min–Max Mean±SD Median |
7.0–20.0 11.60±3.75 10.0 |
—————- | ———- | ——— | ||
No | % | No | % | |||
Family history Negative Positive |
19 11 |
63.3 36.7 |
28 2 |
93.3 6.7 |
2 7.9 |
0.004 |
Hair pull test Negative Positive |
0 30 |
0.0 100.0 |
30 0 |
100.0 0.0 |
2 200 |
<0.0001 |