Table 2.

Multinomial and nested logit models of waterpipe smoking preference, and willingness to pay estimates (in USD)

	Multinomial logit coefficient (SE)	Willingness to pay estimate (CI)	Nested logit coefficient (SE)
Flavour
Double apple	0.9423 (0.0369)***	4.63 (4.11 to 5.23)	1.3365 (0.4532)**
Blue mist	0.5024 (0.0381)***	3.79 (3.31 to 4.29)	1.1312 (0.3857)**
Pirate's cave	0.0496 (0.0404)	2.93 (2.49, 3.39)	0.9041 (0.3106)**
Tobacco (Non-flavoured)	−1.4940 (0.0606)***	Reference	Reference
Nicotine content			−0.1837 (0.0640)**
0.0%	0.3116 (0.0304)***	Reference
0.05%	−0.0119 (0.0316)***	−0.82 (−1.02 to −0.63)
0.5%	−0.1927 (0.0317)***	−0.96 (−1.18 to −0.74)
Price			−0.3768 (0.1230)**
$5	0.4631 (0.0302)***
$10	0.1715 (0.0309)***
$20	−0.6346 (0.0345)***
Opt out choice
Health warning exposure			0.2803 (0.1252)*
Age at waterpipe initiation			0.1046 (0.0222)***
Non-cigarette smoker			1.1758 (0.2279)***

*p<0.05, **p<0.01, ***p<0.001.

CI: 95% Krinsky-Robb CIs.