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Table 3 Hospitalization – Multivariate Regression Analyses

From: Impact of methylphenidate formulation on treatment patterns and hospitalizations: a retrospective analysis

Variable

Dependent Variable – Hospitalization Logistic Regression

Dependent Variable – Hospital Length of Stay Negative Binomial Regression

 

Odds Ratio

95% Confidence Interval

p Value

Point Estimate

95% Confidence Interval

p Value

Demographics

      

Age

1.017

1.002 – 1.033

0.0234

-0.024

-0.040 – -0.089

0.0019

Female

0.953

0.634 – 1.432

0.8162

0.325

-0.099 – 0.0750

0.1333

East

0.724

0.476 – 1.099

0.1294

-0.795

-1.289 – -0.201

0.0016

South

1.395

0.573 – 3.397

0.4635

-1.364

-0.236 – 0.368

0.0073

North Central

0.401

0.050 – 3.183

0.3871

-1.807

-0.412 – 0.506

0.1256

HMO Insurance

0.976

0.667 – 1.428

0.8995

-0.332

-0.752 – 0.088

0.1213

General Health Status

      

Prior number of diagnoses

1.086

1.035 – 1.138

0.0007

0.001

-0.044 – 0.047

0.9507

Diagnoses

      

Anxiety

0.683

0.146 – 3.192

0.6380

0.527

-0.910 – 1.963

.4722

Depression

1.937

0.684 – 5.485

0.2132

-0.369

-1.395 – 0.656

.4804

Oppositional disorder

1.324

0.658 – 2.666

0.4318

1.155

0.432 – 1.878

.0017

Drug/Alcohol Abuse

9.332

5.328 – 16.344

< 0.0001

0.223

-0.287 – 0.732

.3913

Accident/Injury

2.340

1.446 – 3.735

0.6380

-0.619

-1.093 – 0.145

.0104

Medication

      

OROS MPH

0.668

0.450 – 0.992

0.0454

-0.692

-0.157 – -0.228

.0035