Factors associated with missed assessments in a 2-year longitudinal study of acute respiratory distress syndrome survivors

Table 3 Factors associated with missed assessments at the initial visit at 3-months after ARDS

	Univariable OR^a (95% CI)	P-Value^a	Multivariable OR^a (95% CI)	P-Value^a
Age	1.01 (0.99, 1.02)	0.511
Male	0.76 (0.44, 1.33)	0.336
White race	0.66 (0.38, 1.15)	0.144	0.95 (0.48, 1.87)	0.874
No more than high school education	1.74 (0.96, 3.17)	0.070	0.93 (0.50, 1.70)	0.806
Comorbidity
Charlson Comorbidity Index	1.06 (0.96, 1.19)	0.256
Functional Comorbidity Index	1.06 (0.88, 1.28)	0.553
Alcohol abuse	0.87 (0.45, 1.67)	0.681
Drug abuse	0.85 (0.47, 1.54)	0.586
Psychiatric comorbidity	1.62 (0.88, 2.99)	0.123	1.28 (0.56, 2.92)	0.561
Baseline status prior to ARDS
Unable to walk for at least 5 min	0.90 (0.46, 1.79)	0.772
Residing at home without services	0.67 (0.26, 1.70)	0.394
Unemployed due to health	1.33 (0.74, 2.40)	0.338
Number of dependent ADLs^b	0.93 (0.73, 1.18)	0.545
Dependent in any ADLs^b	0.98 (0.45, 2.13)	0.968
Number of dependent IADLs^b	1.01 (0.90, 1.13)	0.879
Dependent in ≥2 IADLs^b	1.11 (0.63, 1.97)	0.723
EQ-5D Visual Analogue Scale	1.00 (0.99, 1.01)	0.977
EQ-5D Utility score	1.65 (0.48, 5.65)	0.425
SF-36 PCS	1.00 (0.97, 1.02)	0.893
SF-36 MCS	1.01 (0.99, 1.04)	0.211
At hospital discharge
Discharged to home without services	0.79 (0.40, 1.58)	0.513
Number of dependent ADLs^b	1.10 (0.97, 1.24)	0.125	1.26 (1.12, 1.43)	< 0.001
Dependent in any ADLs^b	1.75 (0.85, 3.61)	0.132
Shortness of breath	1.06 (0.56, 2.03)	0.853

Abbreviations: ADL Activities of daily living, ARDS Acute respiratory distress syndrome, EQ-5D EuroQOL-5D, IADL Instrumental activities of daily living, ICU Intensive care unit, MCS Mental component score, PCS Physical component score, SF-36 Short-form 36 functional assessment
^aEstimates and P-values were calculated with binomial regression model using robust variance estimates. Variables significant at the p < 0.20 level were selected for the multivariable model. Multivariable models included all factors presented in the column
^bIf two definitions of the same variable had p < 0.20 (example: > = 1 ADL and No. of ADLS), the one with the stronger association (i.e. lowest p-value) was used in the multivariable model

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