. Author manuscript; available in PMC: 2013 Apr 10.

Published in final edited form as: J Egypt Public Health Assoc. 2010;85(0):131–148.

Table (2).

Factors Related to Duration before Experiencing Craving to Smoke Shisha According to Logistic Regression Analysis

Predictors	Sig.	Exp(B)	95.0% C.I. for EXP(B)

			Upper	Lower
DRD2 genotype	0.0 1	2.70	1.17	6.22
(A1 vs. A2)
Average hagars /day	0.02	2.50	1.12	5.60
(> 4 hagars/day vs. ≤4 hagars/day)
Age of initiation	0.31	1.51	0.67	3.38
(> 20 years vs. ≤ 20 years)
Addictive smoking scores	0.00	3.94	1.70	9.14
(>3 vs. ≤ 3)