Mortality and Causes of Death in Parkinson’s Disease: Analysis of Death Certificates in France, 2000–2014

Introduction: The objective of this study was to describe mortality associated with Parkinson’s disease (PD) in France. Methods: The analysis focuses on deaths that occurred in France in 2014, extracted from the national CépiDc-Inserm database. Deaths were selected whose death certificates listed, as the primary or associated cause, a PD code from the International Classification of Diseases (ICD-10), namely G20 (PD) or F023 (PD-related dementia). Trends in mortality rates were examined over the 2000–2014 period. Results: Among the 527,423 deaths reported in 2014 among individuals aged 50 and older, 1.8% mentioned PD. Compared to those who died without a mention of PD, those who died with PD were on average older at the time of death (84.2 vs. 80.5 years). After adjusting for age, individuals who died with a PD were significantly less likely to be women (OR=0.62 [0.60–0.65]), more likely to be married (OR=1.37 [1.27–1.47]), and twice as likely to die in a nursing home (OR=1.91 [1.80–2.03]). The age-standardized mortality rate was 38.7 per 100,000 person-years (61.1 among men and 26.4 among women) in 2014. Between 2000 and 2014, it decreased overall (-13.8%). Compared to individuals who died without Parkinson’s disease being listed, the distribution of primary causes of death in cases where Parkinson’s disease is listed only as a contributing cause shows, after adjustment for age and sex, that people with Parkinson’s disease died more frequently from Alzheimer’s disease (ORa=2.66, 95% CI: [2.39–2.97]), vascular dementia (ORa = 1.87 [1.36–2.57]), another disease of the nervous system (ORa = 2.78 [2.37–3.26]), ischemic heart disease (ORa = 1.27 [1.13–1.42]), cerebrovascular disease (ORa = 1.73 [1.56–1.91]), or falls (ORa = 3.29 [2.81–3.84]). Conversely, the risk of dying from an invasive tumor or heart failure is reduced (ORa=0.50 [0.46–0.55] and 0.61 [0.50–0.75], respectively). Conclusion: This study identified and characterized individuals who died with PM in France in 2014 and documented the causes of their deaths. Nevertheless, due to the underreporting of PM in death certificates—which may itself have changed over time—caution is warranted in interpreting these results, particularly regarding the decline in the mortality rate between 2000 and 2014.

Author(s): Ha Catherine, Quintin Cécile, Elbaz Alexis, Carcaillon-Bentata Laure

Publishing year: 2018

Pages: 141-150

Weekly Epidemiological Bulletin, 2018, n° 8-9, p. 141-150

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