Measurement of Harm Outcomes in Older Adults after Hospital Discharge: Reliability and Validity

Table 2

Test-retest reliability and validity of Incidents of Harm Questionnaire.

	Response (𝑁)		𝑁 with agreement	Valid 𝑁	Analysis	𝑃 value
Test-retest reliability	Time 1	Time 2
Incident occurred (yes/no)	yes = 4	yes = 4	38	38	Kappa = 1.0	<0.01
	no = 34	no = 34
Type of incident			38	38	percent agreement = 100%
Validity: medical chart (only incidents with medical visit, 𝑛=15)	Caregiver	Medical chart
Incident occurred (yes/no)	yes = 15	yes = 15	15	15	Kappa = 1.0	<0.01
	no = 0	no = 0
Type of incident			3	6	percent agreement = 50%
Validity: caregiver daily log	Phone	Log
Incident occurred (yes/no)	yes = 8	yes = 8	36	36	Kappa = 1.0	<0.01
	no = 28	no = 28
Type of incident			36	36	percent agreement = 100%