The Epidemiology of Hospital-Referred Head Injury in Ardabil City

Table 1

Demographic and basic variables of the patients in study.

Variables	(%)
Place of residence
Ardabil	124 (60.8)
Other places	80 (39.2)
Marital status
Single	89 (43.6)
Married	115 (56.4)
Sex
Male	146 (71.6)
Female	58 (28.4)
Occupation
Employee	13 (6.4)
Self-employee	39 (19.1)
Others	152 (74.5)
Time of event
Night	90 (44.1)
Day	114 (55.9)
Reference season
Spring	64 (31.4)
Summer	86 (42.2)
Fall	29 (14.2)
Winter	25 (12.3)
Mechanism of trauma
Traffic accidents	85 (41.7)
Falls	56 (27.5)
Invasion	10 (4.9)
Other causes	53 (26)
Severity of trauma
Mild (Grade 1)	97 (47.5)
Moderate (Grade 2)	57 (27.9)
Severe (Grade 3)	28 (13.7)
Critical (Grade 4)	22 (10.8)