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Respiratory function and self-reported functional health: EPIC-Norfolk population study.

P K Myint¹, R N Luben, P G Surtees

¹Room 311, Strangeways Research Laboratory, Wort's Causeway, Cambridge, CB1 8RN, UK. Pkyawmyint@aol.com

The European Respiratory Journal

|September 2, 2005

Summary

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Higher forced expiratory volume in one second (FEV1) is linked to better physical health perception in adults. This study explored the connection between respiratory function and health-related quality of life (HRQoL).

Area of Science:

Respiratory Medicine
Public Health
Quality of Life Research

Background:

Respiratory function is a known predictor of mortality.
The relationship between respiratory function and health-related quality of life (HRQoL) remains under-examined in general populations.

Purpose of the Study:

To investigate the association between forced expiratory volume in one second (FEV1) and HRQoL.
To determine if FEV1 predicts physical and mental functional health across the normal range of respiratory function.

Main Methods:

A population-based cross-sectional study involving 16,738 subjects aged 40-79 years.
HRQoL was assessed using the 36-item short form questionnaire.
Statistical analysis controlled for age, height, weight, BMI, smoking, physical activity, prevalent illness, and social class.

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Main Results:

Individuals in the highest quintiles of FEV1 reported better physical functional health (ORs 1.60-1.71).
Higher FEV1 was associated with a lower likelihood of poor mental functional health in males (OR 0.78), but not in females (OR 1.00).

Conclusions:

Forced expiratory volume in one second (FEV1) independently predicts self-perceived physical well-being in the general population.
The findings highlight the importance of respiratory health for overall quality of life.