Skip to main content

Table 6 Phase 3 18-item OARS day one item factor loadings

From: Development of a patient-reported outcome measure (PROM) and change measure for use in early recovery following hip or knee replacement

Rotated Component Matrixa
  Component
1 2 3 4
OARS Item 6: I’ve had constant pain in the affected area .779 .078 .257 .213
OARS Item 5: It’s been painful in the affected area .774 .021 .248 .224
OARS Item 7: I’ve had pain at night in the affected area .768 .071 .276 .189
OARS Item 8: The affected area has felt swollen .665 .159 .002 .003
OARS Item 3: I’ve felt tired .576 .337 .037 −.147
OARS Item 17: I’ve been constipated .317 .263 .011 .042
OARS Item 16: I’ve felt woozy .027 .878 .032 .105
OARS Item 15: I’ve felt sick .086 .821 .123 .146
OARS Item 4: I’ve felt faint .120 .755 .063 .057
OARS Item 1: I’ve felt unwell .452 .614 .195 .114
OARS Item 2: I’ve felt disorientated .274 .542 .027 .170
OARS Item 18: I’ve lost my appetite .100 .540 .121 .339
OARS Item 13: I’ve found it difficult to sleep .114 .080 .919 .137
OARS Item 12: I’ve not slept well .141 .118 .911 .174
OARS Item 14: I’ve not been able to sleep due to the pain in the affected area .404 .152 .739 .169
OARS Item 10: I’ve not been able to stand .199 .178 .184 .857
OARS Item 11: I’ve not been able to walk −.059 .289 .264 .804
OARS Item 9: I’ve had difficulty getting into bed .462 .156 .056 .579
Extraction Method: Principal Component Analysis.
Rotation Method: Varimax with Kaiser Normalization.a
  1. aRotation converged in 6 iterations