Does resilience predict hospital length of stay after total knee arthroplasty? A prospective observational cohort study

Table 3 Secondary outcomes: univariate and multivariate analysis of preoperative variables to predict LOS

Baseline variables	Univariate analysis				Final multivariate analysis
Baseline variables	OR	95% CI OR		P value.	OR	95% CI OR		P value
Included
Fatigue	0.929	0.865	0.998	0.045†	0.939	0.883	1.000	0.049‡
(Intercept)	9.461	1.008	88.768	0.049†	5.022	2.673	9.434	0.000
Sex	1.235	0.985	1.549	0.068†*
30-sec chair stand test	0.974	0.945	1.004	0.087†	0.974	0.947	1.002	0.064
ASA score	1.203	0.968	1.494	0.095†	1.204	1.013	1.432	0.035‡
Worst pain (NRPS)	1.053	0.988	1.122	0.111†	1.041	0.994	1.090	0.091
BMI	1.009	0.996	1.023	0.168†*
Excluded
Resilience (BRS)	0.917	0.796	1.058	0.235
Depression (DASS-21)	1.036	0.976	1.100	0.243
WOMAC function	0.993	0.980	1.006	0.280
Stress (DASS-21)	0.973	0.925	1.023	0.280
Side	0.895	0.724	1.106	0.304
Anxiety (DASS-21)	0.977	0.931	1.025	0.338
WOMAC pain	1.014	0.974	1.056	0.493
Medical conditions	1.013	0.958	1.072	0.652
EQ-5D-5L	0.999	0.993	1.005	0.699
Age	0.997	0.981	1.013	0.727
Socioeconomic status	1.000	0.999	1.001	0.833

NPRS Numerical Pain Rating Scale, BMI Body mass index, BRS Brief Resilience Scale, DASS-21 Depression, Anxiety Stress Scale-21
*sex and BMI were excluded on further refinement of the model despite meeting inclusion criteria; † P < 0.05 in univariate model; ‡ P < 0.05 in multivariate model

ISSN: 2524-7948