Survey-Description

The Health Survey Short Form 36 version 2 (SF-36v2) is a widely used psychometric tool designed to assess health-related quality of life. The second version of the SF-36 is an updated edition of the original SF-36, maintaining its core structures and dimensions while offering improvements in question clarity and assessment accuracy.

The SF-36v2 consists of 36 questions categorized into eight health scales, which measure various aspects of an individual’s physical and mental health:

Physical Functioning (PF): Assesses daily activities related to physical ability.

Role Physical (RP): Measures the extent to which physical health affects an individual’s functioning and activities.

Bodily Pain (BP): Evaluates the intensity of pain and its impact on daily activities.

General Health (GH): Assesses the individual’s perception of their overall health.

Vitality (VT): Measures levels of energy and fatigue.

Social Functioning (SF): Evaluates the individual’s ability to participate in social activities.

Role Emotional (RE): Measures the extent to which emotional health affects an individual’s functioning and activities.

Mental Health (MH): Assesses psychological well-being, including emotional states and psychological resilience.

Data Analysis and Use

The analysis of data collected through the SF-36v2 involves the following procedures:

Descriptive Statistics: Calculation of means, standard deviations, and frequency distributions for each health scale.

Reliability and Validity: Evaluation of internal consistency (Cronbach’s α) and structural validity through factor analysis.

Correlation with Other Variables: Investigation of the relationship between the SF-36v2 dimensions and other factors such as age, gender, chronic conditions, and psychological well-being.

Comparative Analysis: Comparison of results with normative values or control groups to assess an individual’s health relative to the general population or specific subgroups.

The use of SF-36v2 data is versatile and can support:

Clinical Assessments: Monitoring patient progress and evaluating the effectiveness of treatments.

Research: Studying the relationship between quality of life and various health factors.

Administrative Evaluations: Assessing population health and understanding health needs in different communities.

Purpose

The primary objectives of the SF-36v2 are:

Assessment of Health-Related Quality of Life: Providing a comprehensive picture of the health aspects that impact individuals’ daily lives.

Comparative Analysis: Allowing the comparison of quality of life across different groups, populations, or chronic conditions.

Support for Clinical Decisions: Providing information that can help healthcare professionals make informed decisions regarding patient care.

Informing Health Policies: Offering data that can be used to develop and evaluate health policies and programs.

Scoring

The norming of the SF-36v2 involves creating normative values based on large and representative samples of the general population. The norming process includes:

Data Collection from a Representative Sample: Conducting surveys in broad and diverse population groups to ensure the representativeness of the normative values.

Creation of Normally Distributed Values: Calculating means and standard deviations for each health scale, taking into account factors such as age and gender.

Establishment of Evaluation Criteria: Defining cutoff points to identify high and low levels of health-related quality of life.

Continuous Revision: Updating normative values based on new research and changes in the population or data collection methods.

Norming allows for the comparative analysis of individuals relative to the general population and helps identify individuals who may need additional support or intervention.

Bibliography

Ware, J. E., & Sherbourne, C. D. (1992). The MOS 36-item short-form health survey (SF-36): I. Conceptual framework and item selection. Medical Care, 30(6), 473-483.

McHorney, C. A., Ware, J. E., & Raczek, A. E. (1993). The MOS 36-item short-form health survey (SF-36): II. Psychometric and clinical tests of validity in measuring physical and mental health constructs. Medical Care, 31(3), 247-263.

Ware, J. E., Kosinski, M., & Keller, S. D. (1996). A 12-Item Short-Form Health Survey: Construction of scales and preliminary tests of reliability and validity. Medical Care, 34(3), 220-233.

Andersson, G., Bryk, R., & Mauritzson, K. (1998). Validity of SF-36 Health Survey in a Swedish general population. Quality of Life Research, 7(1), 29-36.

Jenkinson, C., Coulter, A., & Wright, L. (1993). Short-form measures of health-related quality of life: Current status and recent developments. Journal of Health Services Research & Policy, 3(1), 34-42.

Rothrock, N. S., Cooperman, N. J., Tennant, A., & Reeve, B. B. (2003). An update of the health-related quality of life literature: Emphasis on the SF-36®. Quality of Life Research, 12(1), 1-31.