Table 1.

Distribution of studied sample according to personal characteristics (n = 960).

Personal characteristics	Frequency	Percent
Age:
<20	472	49.2
20+	488	50.8
Range	18–25
Mean± SD	20.8±13.5
Median	21.0
Gender:
Male	422	44
Female	538	56
Educational years:
2nd year	230	24
3rd year	461	48
4th year	269	28
History of chickenpox:
Yes	346	36
No	614	64
Last GPA (out of 5):
<2.5	215	22.4
2.5–3.74 ≥ 3.75	342 403	35.6 42
Father’s education:
< University level	572	59.6
≥University level	388	40.4
Mother’s education::
< University level	668	69.6
≥University level	292	30.4