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Table 6 Model fitting results of the logistic multilevel analysis for the dichotomous variable "After you were discharged, did you receive information about the symptoms or health problems you had to pay attention to?".

From: The Consumer Quality Index Hip Knee Questionnaire measuring patients' experiences with quality of care after a total hip or knee arthroplasty

Outcome variable (N = 1,456)

Model 1

Model 2

Probability (Ï€) (95% CI)

0.40 (0.38; 0.42)

0.21 (0.18; 0.25)

OR age (18–65 = reference) (95% CI)

-

1.66 (1.29; 2.13)

OR sex (males = reference) (95% CI)

-

1.21 (0.95; 1.55)

OR education (low education = reference) (95% CI)

-

1.39 (1.08; 1.79)

OR physical health (high = reference) (95% CI)

-

1.60 (1.14; 2.25)

OR mental health (high = reference) (95% CI)

-

1.40 (1.08; 1.82)

Variance hospitals (SE)

0.12 (0.06)*

0.11 (0.05)*

Variance patients (SE)

0.99 (0.04)1

0.99 (0.04)1

P

0.04

0.03

  1. *p < 0.05
  2. 1By definition, individual level variance is one if the binomial distribution holds.
  3. SE, standard error
  4. 95% CI, 95% confidence interval