Cohort Studies

Cohort studies observe large groups of individuals and record their exposure to certain risk factors to find clues as to the possible causes of disease.
They can be prospective studies that gather data going forward, or retrospective cohort studies, which look at data already collected. This type of research can also help identify social factors that influence health.

This type of study design where one or more people (known as cohorts) are followed and subsequent status evaluations with respect to a disease or outcome are conducted to determine which participants exposure characteristics (risk factors) are associated. As the study is conducted, outcome from participants in each cohort is measured and relationships with specific characteristics determined.

Fundamentals of a cohort study:

  • Assemble cohorts of exposed and unexposed individuals
  • Compare the risks of incident outcomes in each cohort
  • Follow cohorts for the development of incident outcomes
  • Identify people who are free of disease at the beginning of the study


  • Cheaper & easier than a randomized controlled trial (RCT)
  • Subjects can be matched, which limits the influence of variables
  • The standardization of criteria/outcome is possible


  • Blinding/Masking is difficult
  • Cohorts can be difficult to identify from confounding variables
  • No randomization, which means that imbalances could exist
  • Outcome of interest can take a long time

For Answers to any questions you may have please call Dr. Jimenez at 915-850-0900

The Connection Between Anxiety and Inflammation

[et_pb_section bb_built="1"][et_pb_row][et_pb_column type="4_4"][et_pb_text] Anxiety is the most common mental health disorder in the United States, impacting more than 40 million… Read More

July 10, 2018

Rapid Pain Relief for Herniated Discs in El Paso, TX

Herniated discs are a debilitating condition characterized by pain, numbness and weakness in one or more limbs. While some people… Read More

March 2, 2018

Vertebrogenic Autonomic Dysfunction Subjective Symptoms: A Prospective Study

[et_pb_section bb_built="1"][et_pb_row][et_pb_column type="4_4"][et_pb_text] The autonomic concomitants of cervical pathomechanics
(the posterior cervical sympathetic syndrome) have been
widely reported. The literature documenting the… Read More

March 1, 2018

Amazing Results from Herniated Disc Early Treatment | El Paso, TX

A herniated disc is typically a very painful condition, especially if the inner gel-like substance of the intervertebral disc, known… Read More

March 1, 2018

Migraine Pain & Lumbar Herniated Disc Treatment in El Paso, TX

One of the most prevalent causes of lower back pain and sciatica may be due to the compression of the… Read More

February 28, 2018