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Table 3 Cumulative associations between PM2.5 components and mortality estimated from WQS modelsa

From: Associations between long-term exposures to airborne PM2.5 components and mortality in Massachusetts: mixture analysis exploration

Cause-specific Mortality

Mortality Rate Ratio

WQS Models on all 15 PM 2.5 components

All Non-accidental Mortality

1.0303 (1.0265, 1.0341)

Cardiovascular mortality

1.0533 (1.0486, 1.0581)

Respiratory mortality

1.0460 (1.0392, 1.0529)

WQS Models on the source groups identified for the 15 PM 2.5 components

All Non-accidental Mortality

1.0277 (1.0241, 1.0313)

Cardiovascular mortality

1.0488 (1.0444, 1.0532)

Respiratory mortality

1.0435 (1.0368, 1.0504)

  1. aThe mortality rate ratios are per 1 unit increase in the WQS index, which could be interpreted as approximately 1 decile increase in all PM2.5 components or the source groups identified for the PM2.5 components
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Environmental Health

ISSN: 1476-069X