Skip to main content

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)
  1. (N = 38, group 1).