Long-term consequences of an intensive care unit stay in older critically ill patients: design of a longitudinal study

Table 2 Measurements in the ICU group and the comparison group (Follow-up)

Variables	Instruments	Time of Measurement
		Baseline/1 week after discharge ICU	6 months	12 months
Pain (intensity, frequency)	NRS	Q	Q	Q
Anxiety (intensity, frequency)	NRS, HADS-D	Q	Q	Q
Agitation (intensity, frequency)	CAM	Q	Q	Q
Mortality	Survival: Yes/No	Q	Q	Q
Morbidity	International classification of diseases, version 10	MR/Q	MR/Q	MR/Q
Quality of life (HR-QOL)¹	SF-36	Q	Q	Q

Note: NRS = Numeric rating scale. HADS-D = Hospital Anxiety and Depression Scale. CAM = Confusion Assessment Method. SF-36 = Short Form 36 Health Survey. HR-QOL = Health-related quality of life. MR = Medical record. Q = Questionnaire.

ISSN: 1471-2318