Via YLE:
Immigrants in Helsinki use the public health system less than the general population. According to a fresh survey, though, many mental and physical problems go untreated among the immigration population.
More than 500 Helsinki residents of Russian, Somali and Kurdish background took part in the study, released on Wednesday by the National Institute for Health and Welfare (THL).
The report indicates that immigrants on average pose less of a financial burden on the public health system than native-born Finns, as they simply tend to go to the doctor less. However it suggests that perhaps they should make more use of Finland's free medical services.(source)