Environmental Health: Epidemiological Study on Respiratory Diseases in Lower Manhattan

Running head: ENVIRONMENTAL HEALTH
ENVIRONMENTAL HEALTH
Name of the Student
Name of the University
Author note

1ENVIRONMENTAL HEALTH
Answer 1
A.
The type of epidemiological study that was chosen for the research article was the
retrospective cohort study (Kwan et al., 2012).
B.
There are several reasons due to which, section of cohort study was appropriate for the
study.
 The primary aim of the study was to determine the presence of acute and chronic
respiratory disease among the residents of lower Manhattan. Therefore usage of
cohort health study allowed the researchers to conduct such comparisons among
different places and for multiple health outcomes (Lin et al., 2005).
 As the study was conducted over entire New York, to assemble and include such
huge population, cohort study was appropriate.
 As the study compared the huge population with or without breathing issues, the
chances of bias were maximum, hence, cohort study helped to lower the present
bias (Lin et al., 2005).
Answer 2
The type of bias that were involved in the study are:
 As the research had lower response rate due to an emotional aspect, the research
has selection bias.