Amenable mortality inequalities and their changes by place of residence during 1990-2019: the case of Lithuania

The aim of this study was to analyze inequalities of amenable mortality by place of residence and its changes in Lithuania during 1990-2019.

A record-linked cohort study.

Information on deaths was obtained from Statistics Lithuania and the Institute of Hygiene. Mortality rates from amenable causes of death by urban and rural among men and women were calculated per 100,000 population and were standardized by age. Inequalities in mortality were assessed using rate differences. For the assessment of the trends of mortality and its inequalities during 1990-2019, joinpoint regression analysis was applied.

During 1990-2019, amenable mortality of men and women in rural areas was higher compared to urban areas (P < 0.05). Changes in men's and women's mortality and its inequalities between rural and urban areas were characterized by three cut-off points (P < 0.05). However, not all the periods between the cut-off points were characterized by statistically significant changes in mortality. A reduction in amenable mortality was more evident in women, especially those living in rural areas. During 1990-2004 and in 2006, the differences in amenable mortality were greater among rural and urban women than among men. However, during 2013-2019, the differences were smaller (P < 0.05). Inequalities of men's mortality decreased during 1990-2001 and 2005-2012, and inequalities of women's mortality decreased during 1993-2006, 2006-2017, and 2017-2019 (P < 0.05). Inequalities of men's mortality decreased most rapidly during 2005-2012 (on average, by 10.24% per year), while inequalities of women's mortality decreased most rapidly during 2017-2019 (on average by 18.32% per year) (P < 0.05).

During 1990-2019, inequalities and a decline of inequalities in amenable mortality among rural and urban men and women were identified in Lithuania. The amenable mortality of the residents of Lithuania remained high, changed unevenly, and no significant sharp decrease was observed. Further reduction of inequalities in amenable mortality between rural and urban inhabitants with a special focus on men remain the health policy challenges in Lithuania.