Mortality decline and widening social inequalities.

Area of Science:

• Public Health
• Epidemiology
• Social Medicine

Background:

• Coronary heart disease (CHD) mortality exhibits significant occupational and regional disparities in Great Britain.
• Previous studies indicated higher CHD mortality in manual occupational classes compared to non-manual ones, and in Scotland, Wales, and Northern England versus Southern England.

Purpose of the Study:

• To examine trends in CHD mortality inequalities across occupational classes and regions in Great Britain.
• To assess changes in mortality ratios (SMRs) for all causes, lung cancer, CHD, and cerebrovascular disease between 1970-72 and 1979-83.

Main Methods:

• Comparative analysis of standardized mortality ratios (SMRs) for occupational classes and UK regions.
• Utilized 1970-72 and 1979-83 death rates, with 1979-83 rates serving as the standard for comparison.
• Examined trends for all causes, lung cancer, CHD, and cerebrovascular disease.

Main Results:

• The relative disadvantage for manual occupational classes increased across all examined cause groups, despite an overall decline in mortality.
• Persistent regional differences in CHD mortality were observed.
• Among men, CHD mortality declined in non-manual classes across all regions, with only Wales showing a notable decline in manual classes.
• Among women, lung cancer and CHD mortality decreased in non-manual classes but increased in manual classes.

Conclusions:

• Widening socioeconomic and regional inequalities in CHD mortality highlight persistent public health challenges.
• Smoking differences between social classes are a likely significant factor contributing to these trends.
• Further research should explore the impact of unemployment and income differentials on these health disparities.