Hookah smoking status Number Percent 1-2 times in a month 9 2.0 Less than 4 times in a week 73 16.0 4-5 times in a week 4 0.9 1 time/day 221 48.5 2times/day 85 18.6 3 times/day 36 7.9 More than 3 times/day 28 6.1 ;

Table 1: Frequency of hookah smoking status (n=456).