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People in Finland belonging to lower socioeconomic groups are more likely to smoke than their peers in higher groups, and the proportion between the two has grown, according to a study currently under review by the University of Helsinki.

In order to divide people by socioeconomic status, researchers can take into account factors like a person’s highest level of education, their household income and their job. [...] "We know smoking has directly adverse effects on human health. Based on the study, it can be said that if this trend continues, so too will the growth of health inequalities," said Otto Ruokolainen, [...]