Table 3.

Test-retest of the PPE-15 using unweighted Kappa coefficient (n = 68)

PPE-15 item	Kappa	p-value
PPE-1	0.431	<.001
PPE-2	0.538	<.001
PPE-3	0.431	<.001
PPE-4	0.447	<.001
PPE-5	0.409	<.001
PPE-6	0.562	<.001
PPE-7	0.698	<.001
PPE-8	0.297	.012
PPE-9	0.400	.001
PPE-10	0.597	<.001
PPE-10a	0.473	<.001
PPE-11	0.125	.275
PPE-12	0.311	.008
PPE-13	0.266	.018
PPE-14	0.479	<.001
PPE-15	0.357	.002

Abbreviations: PPE Picker Patient Experience Questionnaire-15 items as described in the Appendix