Correlation of respiratory symptoms and spirometric lung patterns in a rural community setting, Sindh, Pakistan: a cross sectional survey

Table 2 Frequency distribution of respiratory symptoms, asthma and lung function among study population in taluka Gambat district Khairpur, Sindh, Pakistan

Prevalence of respiratory symptoms (Total sample N 200)	n	(%)
Cough ⁷	35	17.5
Phlegm ⁸	38	19
Wheeze	28	14
Shortness of breath ⁹	21	10.5
Self-reported asthma ¹⁰	19	9.5
Physician diagnosed asthma ¹¹	11	5.5
*Frequency of Lung function patterns (Total sample N 188)*
Normal	98	52.12
Obstructive ¹²	54	28.72
Restrictive ¹³	37	19.68

^7. Chronic cough defined as cough on most days of month, for 3 consecutive months or more in a year.
^8. Chronic phlegm defined as presence of phlegm for 3 consecutive months in 2 consecutive years.
^9. Participants were asked: do you have to walk slower than people of your age on the level because of breathlessness?
^10. Participants were asked if they ever had asthma.
^11. Physician diagnosed asthma defined as asthma confirmed by a doctor.
^12. Defined as having FEV₁ <80% and FEV₁/FVC <70%.
^13. Defined as having FEV₁ <80% and FEV₁/FVC >70%.

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