public health

Biostatistics is applied statistics in the field of medical sciences and biology. It is used for public health practice. Biostatisticians provide data-driven studies that give information about mortality, health status, and morbidity in human populations.

These studies allow relevant healthcare authorities to take the proper steps to control and prevent diseases. In addition, biostatisticians play a crucial role in determining the causes of targeted illnesses and whether particular treatment methods are working or not. They get these findings through a statistical analysis of the data.

The Healthcare industry generates a vast amount of data. This data is processed and interpreted, which provides valuable insights into the healthcare sector. The role of biostatisticians holds a special significance in this regard as they perform statistical data studies and test hypotheses to ensure accurate inferences.

The expert biostatisticians who conduct these studies have expertise in statistical programs, techniques, and practices like Excel, SAS, and STATA. They also design clinical trials and analyze the impact of medications and public health programs on patients.

Without further ado, let us find out what is the role of biostatistics in public health. Read till the end to get a clear picture.

Data Collection and Analysis

One of the primary roles of biostatistics in public health is collecting, interpreting, and analyzing relevant data. Most statistical studies include data analysis used to identify the areas of weaknesses in public health. 

Biostatisticians play a crucial role in data management and use it for clinical research studies. They utilize statistical methods to interpret data and reports through visual representations such as graphs or tables. These reports usually indicate a specific trend or any unusual behavior occurring in the human population. The interpretations of the data are also included in the reporting of clinical research. It is an important part of the collaborative process between biostatisticians and researchers. 

Clinical Trials

The medical industry evolves with time, and advanced treatment methods are developing rapidly. A certain treatment has to go through a series of trials and tests to ensure that it is safe and efficient for patients. Medical experts innovate treatments based on data collection, interpretation, and analysis. 

The role of the biostatisticians is important in clinical trials. They design the study, pick suitable collection methods, and optimize the sample size. Also, they remove irrelevant information and coincidences from the data. That is how biostatistics helps to find accurate conclusions. It helps to ensure whether alternative drugs are better than the current ones available in the market. 

Public Health Programs

The expert biostatisticians use statistical practices and techniques to analyze the impact of public health programs undertaken by governments and healthcare organizations. They create robust studies by using sampling techniques that allow researchers to understand how well a particular initiative is performing. If it is doing good, then the same model can be implemented in other healthcare areas. So, this is where biostatistics plays a key role in measuring how effective public health programs can be.

Epidemiological Studies

Different factors are involved in causing, distributing, and outbreaking a particular disease. Epidemiological studies are used to determine these factors by gathering relevant data on the disease. It helps to find the connection between effect and cause. Relevant authorities create preventive measures and public health policies based on the outcome.

The expertise of a biostatistics expert is required to understand the correlation between the variables. It can only be possible once meaningful information is extracted from the data. Statistical evidence has played a crucial role in finding the missing link in the past.

The 1954 published report of the study published by Richard Doll and Austin Bradford Hill indicated the strong connection between smoking and lung cancer. It only became possible due to a solid statistical report. Data scientists and statisticians also played a vital role in making everyone understand the Ebola epidemic in West Africa through visualization techniques and statistical analysis.

Assessing the Survival Rates and Severity of a Disease

Survival statistics give an idea about the lifespan of terminally ill patients and how long they will live, so it helps treat them accordingly. These statistics also help understand the chances of remission, best treatment option, and chances of living a disease-free life after treatment. Biostatistics specialists do careful examinations of studies to provide reference data to the doctors and patients. 

Genome Sequencing Data Analysis

Genome sequencing helps scientists understand complex traits by producing a large amount of data. Different software and tools help arrange genomes in a sequence that provides valuable insights into finding the variants that cause diseases. Data extracted from the variant genome is compared with the reference genome.

Biostatisticians study the variant frequencies in populations by considering specific ethnicity and blood type parameters. It allows them to conclude how the genetic make-up of any subpopulation can get affected if they are prone to specific conditions. It is one of many ways biostatistics and data analysis are helping the healthcare sector.

Evidence-based Medicine and Meta-analysis

Biostatistics in public health plays a crucial role in meta-analysis and systematic reviews of medical data. It helps in the development of evidence-based healthcare that impacts patient care positively. Meta-analysis is a structured study that analyzes the previous medical research related to any specific topic. To conclude these studies, integration of the individual results is required.

For example, meta-analysis evaluates if an individual has a risk factor for a disease or not. Also, it helps to figure out what kind of genetic and environmental factors can cause that disease. Eventually, it allows medical experts to decide what treatment will be suitable for the patient.


Biostatistics plays a crucial role in providing quantitative review by analyzing and interpreting the relevant healthcare data. It allows healthcare providers to improve the chances of patient survival through data-driven treatment.

The role of biostatistics in public health holds special significance. From analyzing the impact of public health programs on improving survival rates, biostatistics plays a vital role in strengthening the healthcare structure. Eventually, it makes a valuable contribution to public health and helps improve the quality of patient care. Hopefully, the critical points mentioned above will help you understand the role of biostatistics in public health.