Ambulatory and stationary healthcare use in survivors of ARDS during the first year after discharge from ICU: findings from the DACAPO cohort

Annals of Intensive Care

Table 3 Univariable negative binomial regression analyses of days of hospitalization after discharge from ICU

	IRR	SE	95% CI	p
Sex male	1.026	0.087	0.87–1.21	0.765
Age at admission to ICU (years)	1.002	0.003	0.99–1.01	0.527
Education score^a	1.049	0.034	0.98–1.12	0.143
Employment situation before onset of ARDS:
Full time	Reference
Part time	0.855	0.137	0.62–1.17	0.327
Irregular	0.832	0.326	0.38–1.79	0.639
Not employed/retired	1.096	0.100	0.91–1.31	0.317
Health insurance
Statutory	Reference
Private	1.089	0.138	0.85–1.40	0.498
Other	0.575	0.219	0.27–1.21	0.147
Living with a partner	1.115	0.110	0.92–1.35	0.273
Nationality: German	1.371	0.310	0.88–2.14	0.164
Transferred from other ICU	1.205	0.100	1.02–1.42	0.024
Severity of ARDS:
Mild	Reference
Moderate	0.874	0.123	0.66–1.15	0.339
Severe	0.860	0.122	0.65–1.13	0.287
Cause of ARDS: extrapulmonary	1.259	0.153	0.99–1.60	0.059
SAPS-II at admission to ICU (without GCS)	1.007	0.004	1.00–1.01	0.047
SOFA score at admission to ICU (without GCS)	1.026	0.012	1.00–1.05	0.029
Length of ICU stay (10 days)^b	1.112	0.024	1.06–1.16	< 0.001
Length of hospital stay (10 days)^b	1.113	0.022	1.07–1.16	< 0.001
Mechanical ventilation at discharge	1.376	0.168	1.08–1.75	0.009

IRR incidence rate ratio, SE standard error, 95% CI 95% confidence interval, SAPS-II Simplified Acute Physiology Score-II, SOFA sequential organ failure assessment, GCS Glasgow Coma Scale
^aDerived from educational and professional levels [36]
^bIncluding stay in transferring hospital