Health-related quality of life as predictor for mortality in patients treated with long-term mechanical ventilation

Table 6 Hazard ratios for mortality by baseline scores (both sum score and sub-scales) of the Severe Respiratory Insufficiency questionnaire in chronic obstructive pulmonary disease patients (n = 24) treated with long-term mechanical ventilation between 2008 and 2014

SRI		Crude			Adjusted^a
SRI	N^b	HR	95% CI	P value	HR	95% CI	P value
SRI- Sum Score (SS)	23	0.98	(0.95, 1.01)	0.14	0.97	(0.95, 1.01)	0.19
SRI- Physical Functioning (PF)	23	0.98	(0.95, 1.01)	0.16	0.97	(0.93, 1.01)	0.13
SRI- Respiratory Complaints (RC)	23	0.98	(0.95, 1.01)	0.33	0.98	(0.95, 1.01)	0.26
SRI- Attendant Symptoms and Sleep (AS)	23	0.98	(0.96, 1.01)	0.15	0.97	(0.95, 1.00)	0.10
SRI- Social Relationships (SR)	23	0.99	(0.97, 1.01)	0.08	0.98	(0.99, 1.01)	0.37
SRI- Anxiety (AX)	23	0.99	(0.97, 1.01)	0.32	0.99	(0.97 1.01)	0.34
SRI- Psychological Well-Being (WB)	23	0.98	(0.96, 1.00)	0.07	0.98	(0.96, 1.00)	0.13
SRI- Social Functioning (SF)	23	0.99	(0.97, 1.01)	0.50	0.99	(0.97, 1.01)	0.64

Abbreviations: SRI Severe Respiratory Insufficiency, HR hazard ratio, CI confidence interval
^a Adjusted for age and comorbidity
^b Numbers do not add to 24 due to missing in the Severe Respiratory Insufficiency questionnaire

ISSN: 1471-2466