. Author manuscript; available in PMC: 2021 Jan 29.

Published in final edited form as: J Alzheimers Dis. 2019;69(3):709–716. doi: 10.3233/JAD-181288

Table 2.

Summary of reliability and validity of Chinese version of CAM-S

	Reliability
	Internal consistency^a	Split-halves reliability^b		Inter-rater reliability^c
CAM-S Short Form	0.748	0.372		0.629
CAM-S Long Form	0.839	0.384		0.945
	Discriminate validity^d
	POD	Non POD		p value
CAM-S Short Form	3.22 ± 0.55	1.37 ± 0.64		< 0.001
CAM-S Long Form	5.69 ± 1.58	3.01 ± 1.09		< 0.001
	Criterion-related validity^e
	r value		p value
Attention domain	−0.519		< 0.001
Orientation domain	−0.815		< 0.001
Memory domain	−0.751		< 0.001

Abbreviation: POD, participants who developed postoperative delirium; Non POD, participants who did not develop postoperative delirium.

Notes:

^a.

Internal consistency was assessed by using Cronbach’s alpha coefficient.

^b.

Split-halves reliability was determined by Pearson correlation coefficient of two parts of CAM-S, namely odd items and even items.

^c.

Inter-rater reliability was assessed by using intra-class correlation coefficients (ICC).

^d.

Discriminate validity was evaluated by Student t-test, comparing the CAM-S scores between participants who developed postoperative delirium and those who did not develop delirium diagnosed by CAM.

^e.

Criterion-related validity was assessed by spearman correlation coefficients between domain scores of CAM-S and concurrent cognitive domains.