Development and validation of the Newcastle laryngeal hypersensitivity questionnaire

Vertigan, Anne E; Bone, Sarah L; Gibson, Peter G

doi:10.1186/1745-9974-10-1

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Table 3 Item-item correlation matrix of the 16 items retained following item reduction and factor analysis in the item generation component of the study

From: Development and validation of the Newcastle laryngeal hypersensitivity questionnaire

	Abnsens	Phlegm	Pain	Stuck	Blocked	Dry	Tight	Irritation	Pushing on chest	Pressing on throat	Constriction	Food catches	Tickle	Itch	Tingle	Hot burning	No. (%) correlation < .2
Abnormal sensation	1	0.298	0.307	0.707	0.621	0.114	0.644	0.569	0.087	0.523	0.344	0.399	0.448	0.337	0.414	0.184	3 (19)
Phlegm	0.298	1	0.092	0.299	0.259	0.184	0.187	0.296	0.211	0.080	0.309	0.169	0.491	0.395	0.361	0.035	6 (38)
Pain	0.307	0.092	1	0.304	0.299	0.401	0.405	0.338	0.449	0.414	0.219	0.219	0.317	0.493	0.545	0.637	1 (6)
Stuck	0.707	0.299	0.304	1	0.723	0.010	0.649	0.665	0.130	0.617	0.406	0.457	0.471	0.368	0.484	0.059	3 (19)
Blocked	0.621	0.259	0.299	0.723	1	0.099	0.729	0.617	0.301	0.687	0.614	0.531	0.462	0.304	0.489	0.182	2 (13)
Dry	0.114	0.184	0.401	0.010	0.099	1	0.354	0.230	0.445	0.070	0.149	0.346	0.454	0.404	0.329	0.373	6 (38)
Tight	0.644	0.187	0.405	0.649	0.729	0.354	1	0.714	0.493	0.802	0.588	0.529	0.488	0.461	0.505	0.346	1 (6)
Irritated	0.569	0.296	0.338	0.666	0.617	0.230	0.714	1	0.292	0.529	0.315	0.485	0.517	0.314	0.386	0.168	1 (6)
Pushing On chest	0.087	0.211	0.449	0.130	0.302	0.445	0.493	0.292	1	0.454	0.410	0.114	0.414	0.384	0.313	0.621	3 (19)
Pressing on throat	0.523	0.080	0.414	0.617	0.687	0.070	0.802	0.529	0.454	1	0.664	0.482	0.220	0.413	0.607	0.342	2 (13)
Constriction	0.344	0.309	0.219	0.406	0.614	0.149	0.588	0.315	0.410	0.664	1	0.379	0.323	0.377	0.418	0.218	1 (6)
Food catches	0.399	0.169	0.219	0.457	0.531	0.346	0.529	0.485	0.114	0.482	0.379	1	0.241	0.516	0.485	0.161	3 (19)
Tickle	0.448	0.491	0.317	0.471	0.462	0.454	0.488	0.517	0.414	0.220	0.323	0.241	1	0.542	0.489	0.185	1 (6)
Itch	0.337	0.395	0.493	0.368	0.304	0.404	0.461	0.314	0.384	0.413	0.377	0.516	0.542	1	0.725	0.310	0 (0)
Tingle	0.415	0.361	0.545	0.484	0.489	0.329	0.505	0.386	0.313	0.607	0.418	0.485	0.489	0.725	1	0.364	0 (0)
Hot burning	0.184	0.035	0.637	0.059	0.183	0.373	0.346	0.168	0.621	0.342	0.218	0.161	0.185	0.310	0.364	1	7 (44)

(N = 38, group 1).

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