Skip to main content

Table 3 Correlation Matrix for 11 Questions loading onto at least one component

From: Validation of the Intermountain patient perception of quality (PPQ) survey among survivors of an intensive care unit admission: a retrospective validation study

  phcc phsk phex nucc nusk nufl nuex nuco clpn clbe ovcs
phcc Pearson 1 .754 .762 .450 .463 .473 .477 .451 .470 .483 .552
N 5294 5190 5140 5284 5229 5180 5201 5197 4911 5263 5288
phsk Pearson .754 1 .701 .453 .492 .444 .472 .452 .455 .493 .542
N 5190 5273 5128 5262 5217 5165 5175 5172 4897 5248 5268
phex Pearson .762 .701 1 .422 .438 .440 .502 .447 .444 .468 .521
N 5140 5128 5221 5211 5156 5111 5137 5130 4842 5192 5215
nucc Pearson .450 .453 .422 1 .698 .705 .706 .732 .525 .593 .695
N 5284 5262 5211 5666 5585 5514 5550 5538 5236 5613 5657
nusk Pearson .463 .492 .438 .698 1 .648 .699 .675 .509 .556 .633
N 5229 5217 5156 5585 5597 5457 5496 5476 5178 5549 5588
nufl Pearson .473 .444 .440 .705 .648 1 .666 .737 .545 .579 .670
N 5180 5165 5111 5514 5457 5524 5437 5446 5127 5490 5516
nuex Pearson .477 .472 .502 .706 .699 .666 1 .713 .508 .554 .647
N 5201 5175 5137 5550 5496 5437 5562 5471 5146 5512 5553
nuco Pearson .451 .452 .447 .732 .675 .737 .713 1 .543 .581 .673
N 5197 5172 5130 5538 5476 5446 5471 5547 5137 5511 5538
clpn Pearson .470 .455 .444 .525 .509 .545 .508 .543 1 .570 .596
N 4911 4897 4842 5236 5178 5127 5146 5137 5247 5205 5242
clbe Pearson .483 .493 .468 .593 .556 .579 .554 .581 .570 1 .698
N 5263 5248 5192 5613 5549 5490 5512 5511 5205 5626 5616
ovcs Pearson .552 .542 .521 .695 .633 .670 .647 .673 .596 .698 1
N 5288 5268 5215 5657 5588 5516 5553 5538 5242 5616 5667
  1. All correlations significant at p < 0.001 level (2-tailed).