Project 1
Nikheel Navanale
Nikheel Navanale
Using a dataset from Institute for Health Metrics and Evaluation [1] for US county level trends in mortality rates for major causes of death, the data was plotted in choropleth maps and tables to obtain visualizations and explore trends across Massachusetts counties. The data consists of age standardized mortality rates for major causes of death from 1980 to 2014. The trends obtained can be used to improve healthcare and reduce disparities between counties across Massachusetts.
The different causes of death are listed in the table chart as shown on the right. Cardiovascular disease is the leading cause of death in Massachusetts [2], but this does not give us the whole picture. Cardiovascular disease is on the decline since 1980 as seen in the trend line. Meanwhile mental, diabetes and chronic respiratory diseases are on the rise. Categories such as HIV/AIDS, neurological disorders and war, forces of nature exhibit a sharp increase followed by a reduction in their trend lines. The mortality rate trend lines give us an indication of which diseases are on the rise and which are declining.
The following sections go over a few causes of death in more detail at the county level and try to establish meaningful patterns.
Cardiovascular diseases are the 2nd leading cause of YLL (Years of Life Lost) [3]. The map on the left gives us the mortality rate for cardiovascular diseases in 2014. Middlesex county and Suffolk county have the lowest deaths per 100K population. This can be attributed to the fact that both these counties have more than 96% of the population having health coverage [4],[5]. The highest rate was observed in Bristol county.
While each and every county experienced a decline in mortality rate from 1980 to 2014, the rate of decline varies according to county. Suffolk county experienced the highest decline in mortality rate.
Neoplasms were the 2nd leading cause of death in 2014 [2]. Mortality rates from this cause of death varies significantly among counties. Plymouth and Hampden counties observed the highest mortality rates in Massachusetts at over 200 deaths per 100K population.
Middlesex county again showed the lowest mortality rate in Massachusetts at just 178.92 deaths per 100K population. This can be attributed to the high standard of living [6] and ease of access to healthcare among its residents.
Mortality rate declined in all counties across Massachusetts with Nantucket and Dukes county recording the most percent change in mortality rate as shown in the figure below
In the figure to the left, mortality rate from mental and substance use in 2014 is depicted in a choropleth map. Barnstable and Bristol county recorded the highest mortality rate of more than 23 deaths per 100K population. The mortality rate increased by more than 800% in these counties between 1980 and 2014. The percent change is upwards of 300% in all counties of Massachusetts indicating the severity of mental health issues and drug use.
Nantucket and Dukes county had the lowest mortality rate from mental and substance abuse disorders in 2014.
Below is a tree map which is divided into both counties and causes of death. It is evident that cardiovascular diseases and neoplasms (cancer) are the leading causes of death across Massachusetts. A drop down menu is available for users to individually select different years to get the mortality rates and its causes across all the counties.
[1] http://www.healthdata.org/
[2] https://www.heart.org/idc/groups/heart-public/@wcm/@adv/documents/downloadable/ucm_472853.pdf
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5491406/
[4] https://datausa.io/profile/geo/middlesex-county-ma#health
[5] https://datausa.io/profile/geo/boston-ma/#health
[6] https://datausa.io/profile/geo/middlesex-county-ma#economy