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Table 4 Multivariate cox regression analysis for comparison of outcome measures between case and control cohorts

From: Hospital utilization rates following antipsychotic dose reductions: implications for tardive dyskinesia

Outcome

Dose Reduction

HR

95% CI

P Value

Inpatient admission

≥10%

1.17

1.11, 1.23

< 0.001

Inpatient admission

≥30%

1.23

1.17, 1.31

< 0.001

ER visit

≥10%

1.09

1.05, 1.14

< 0.001

ER visit

≥30%

1.14

1.08, 1.19

< 0.001

Schizophrenia admission or ER visit*

≥10%

1.27

1.19, 1.36

< 0.001

Schizophrenia admission or ER visit*

≥30%

1.31

1.21, 1.41

< 0.001

Psychiatric admission or ER visit*

≥10%

1.16

1.10, 1.23

< 0.001

Psychiatric admission or ER visit*

≥30%

1.21

1.14, 1.29

< 0.001

TD claim

≥10%

1.39

0.80, 2.41

0.24

TD claim

≥30%

1.60

0.86, 3.00

0.14

  1. *See Additional file 1: Table S1 for ICD-9 and ICD-10 diagnostic codes
  2. CI confidence interval; ER emergency room; HR hazard ratio; ICD International Classification of Diseases