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. 2015 Nov 20;1(2):e19. doi: 10.2196/publichealth.4809

Table 3.

Contingency table: Model determined open/closed status of hookah bars.


Model marked closeda Model marked open
Closed hookah bars 28 3
Open hookah bars 6 107

aThe algebraic model uses the date of the last review for the hookah bar to estimate whether it is open or closed. Bars that have not received a review within the last 6 months are estimated to be closed.