Table 1

Prevalence of LPR symptoms in patients with CIP

Ref	Symptom	Prevalence of LPR symptoms		p Value
Ref	Symptom	CIP (+ve), %	CIP (-ve), %	p Value
Chong et al 31	Overall LPR symptoms	73.1	25.9	<0.001
	Chronic cough	29.2	10.6	<0.01
	Sore throat/hoarseness	54.2	11.7	<0.01
	Globus	23.1	7.1	<0.01
	Regurgitation	42.3	13.1	<0.01
	Heartburn	50.0	22.5	<0.01
Akbayir et al 27	Upper oesophageal and laryngopharyngeal symptoms	45	21.5	0.07
Baudet et al 24	Dysphagia	21	4.0	<0.001
Poyrazoglu et al 32	Dysphagia	39.4	0	<0.05
Alagozlu et al 20	Globus	78.6	0	<0.05
Alagozlu et al 20	Dyspepsia	88.2	97.8	NS
Neumann et al 30	Dysphagia/odynophagia	20.8	16.4	<0.001
	Upper respiratory symptoms	2.5	0.9	<0.001
	Globus	1.6	0.3	<0.001
Weickert et al 29	Recurrent hoarseness	9.1	5.6	0.5
	Dysphagia (any grade upper and lower)	15.2	9.4	NS
	Heartburn (any grade upper and lower)	15.2	9.4	NS