Background This study analyzed influences on state legislators' decisi
ons about cigarette tax increase votes using a research strategy based
on political science and social-psychological models. Methods. Legisl
ators from three states representing a spectrum of tobacco interests p
articipated in personal interviews concerned with tobacco control legi
slation (n = 444). Measures of potential predictors of voting intentio
n were based on the consensus model of legislative decision-making and
the theory of planned behavior. Multiple logistic regression methods
were used to identify social-psychological and other predictors of int
ention to vote for cigarette tax increases. Results. General attitudes
and norms concerning cigarette tax increases predicted legislators' i
ntention to vote for cigarette tax increases, More specific predictors
included perceptions of public health impact and retail sales impact
of cigarette tax increases, Constituent pressure was the strongest per
ceived social influence. Political party and state also were strong pr
edictors of intention. Results were consistent with related research b
ased on political science models. Conclusions. Legislators' votes on c
igarette tax increases may be influenced by their perceptions of posit
ive and negative outcomes of a cigarette tax increase and by perceived
constituent pressures. This research model provides useful insights f
or theory and practice and should be refined in future tobacco control
research. (C) 1998 American Health Foundation and Academic Press.