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Table 7 Inter-item correlation matrix (b) for the Portuguese version of VES-13

From: Vulnerability in elderly patients with gastrointestinal cancer – translation, cultural adaptation and validation of the European Portuguese version of the Vulnerable Elders Survey (VES-13)

VES-13 question Item 1 Item 2 Item 3a Item 3b Item 3c Item 3d Item 3e Item 3f Item 4a Item 4b Item 4c Item 4d Item 4e
(b) Inter-item correlation matrix
Item 1 1.000 0.058 0.293 0.241 0.196 0.173 0.309 0.279 0.239 0.312 0.192 0.233 0.271
Item 2 0.058 1.000 0.385 0.461 0.387 0.440 0.483 0.523 0.398 0.262 0.406 0.418 0.326
Item 3a 0.293 0.385 1.000 0.674 0.677 0.597 0.614 0.607 0.443 0.312 0.462 0.432 0.525
Item 3b 0.241 0.461 0.674 1.000 0.676 0.561 0.592 0.685 0.487 0.344 0.477 0.421 0.461
Item 3c 0.196 0.387 0.677 0.676 1.000 0.616 0.498 0.512 0.502 0.371 0.452 0.456 0.466
Item 3d 0.173 0.440 0.597 0.561 0.616 1.000 0.560 0.504 0.466 0.369 0.489 0.358 0.550
Item 3e 0.309 0.483 0.614 0.592 0.498 0.560 1.000 0.714 0.454 0.298 0.478 0.504 0.519
Item 3f 0.279 0.523 0.607 0.685 0.512 0.504 0.714 1.000 0.493 0.346 0.367 0.472 0.580
Item 4a 0.239 0.398 0.443 0.487 0.502 0.466 0.454 0.493 1.000 0.563 0.436 0.497 0.489
Item 4b 0.312 0.262 0.312 0.344 0.371 0.369 0.298 0.346 0.563 1.000 0.357 0.292 0.415
Item 4c 0.192 0.406 0.462 0.477 0.452 0.489 0.478 0.367 0.436 0.357 1.000 0.360 0.478
Item 4d 0.233 0.418 0.432 0.421 0.456 0.358 0.504 0.472 0.497 0.292 0.360 1.000 0.505
Item 4e 0.271 0.326 0.525 0.461 0.466 0.550 0.519 0.580 0.489 0.415 0.478 0.505 1.000
  1. VES-13 – Vulnerable Elders Survey. Eigenvalue and percentage of variance explained for the one factor solution were 6.405 and 49.27 %, respectively. KMO statistic was 0.905 and Bartlett’s test of sphericity had p < 0.001