Additional file 1 of Socioeconomic inequality in tobacco expenditure in Iran: a cross-sectional analysis at national and subnational levels

Additional file 1. Proportion of households with positive tobacco expenditure in the past month by province in Iran, 2018. The proportion of households with tobacco expenditure more than zero in the last month was about 20%. These proportions for provinces based on their Human Development Index (HDI) were 18.7%, 22.9, and 18.8% (high, middle, and low, correspondingly).