The efficacy of spirometry as a screening tool in detection of air flow obstruction.
OBJECTIVE
In developing countries, spirometry has not been considered a part of routine medical check-up. The purpose of the study was to establish the usefulness of spirometry as a primary screening tool in detecting air flow obstruction (AFO) during routine medical check-up (RMC).


METHODS
This was a hospital based, retrospective, non-randomized case series study of 3696 participants, who presented to hospital for routine medical check-up. All subjects were assisted at the Pulmonary Medicine Department, from January 2003 till December 2008 who, having met other inclusion criteria, underwent spirometry. Data were analyzed using proportion, group means, standard deviations and Pearson Chi Square test.


RESULTS
The overall yield from spirometry in detecting AFO was 211 patients (5.7%); 174 males (6.1%) and 37 females (4.4%) (P=0.158, Pearson Chi Square test). Greater age at presentation and BMI correlated significantly with AFO in the target group (P=<0.001; P=<0.005) respectively. Dyspnoea was the most frequent symptomatology observed in those diagnosed with AFO.


CONCLUSIONS
These results suggest that spirometry during RMC for all persons can detect a significant number of patients with AFO particularly among the middle and older age groups with a low BMI.
Aga Khan University Hospital & Dow University of Health Sciences, Karachi, Pakistan.
Nabeel
N
Manzar
A Suleman
AS
Haque
Bushra
B
Manzar
Muhammad
M
Irfan
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