Table 1.

Description of sample characteristics

	N = 935 (100%)
Age (years)
Young (18–35)	609 (65.1)
Middle (36–54)	303 (32.4)
Old (≥55)	23 (2.5)
x ± SD	31.7 ± 10.98
Gender
Male	316 (33.8)
Female	619 (66.2)
Income
Less than $1300	418 (44.7)
Between $1300 & $3700	316 (33.8)
More than $3700	201 (21.5)
Educational level
School	169 (18.1)
University	766 (81.9)
Regional distribution
North	5 (0.6)
South	47 (5.0)
Eastern	74 (7.9)
Western	121 (12.9)
Central	668 (71.5)
Others	20 (2.1)

Abbreviations: x mean, SD standard deviation