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Table 4 Adjusted Length of Stay and Costs, by Age and Diagnosisa,b

From: Economic burden and comorbidities of attention-deficit/hyperactivity disorder among pediatric patients hospitalized in the United States

  Length of Stay Costs
  Study Cohort Control Cohort P Value Study Cohort Control Cohort P Value
Patients Aged 6-11 Years       
296: Affective psychoses 9.49 8.74 <.001 7,547 7,331 .397
313: Emotional disturbances 11.95 11.47 .330 10,113 10,615 .459
312: Conduct disturbance NEC 11.87 12.10 .622 10,329 11,533 .036
780: General symptoms 2.23 2.45 <.001 4,617 5,255 <.001
493: Asthma 2.28 2.41 <.001 3,979 4,393 <.001
309: Adjustment reaction 11.29 9.33 <.001 8,483 8,079 .514
540: Acute appendicitis 3.10 3.28 <.001 7,630 8,322 <.001
311: Depressive disorder NEC 7.70 7.27 .056 6,188 6,353 .534
345: Epilepsy 3.82 3.64 .021 9,889 10,512 .043
486: Pneumonia, organism NOS 2.67 3.10 <.001 4,387 5,442 <.001
Patients Aged 12-17 Years       
296: Affective psychoses 8.28 7.59 <.001 $6,313 $6,253 .583
311: Depressive disorder NEC 6.57 5.85 <.001 $5,415 $5,088 .093
312: Conduct disturbances NEC 12.52 11.40 .062 $11,332 $10,346 .133
313: Emotional disturbances 10.65 9.01 <.001 $8,725 $7,785 .064
309: Adjustment reaction 7.13 5.90 <.001 $5,025 $4,812 .404
540: Acute appendicitis 2.83 2.86 .375 $8,135 $8,323 .014
780: General symptoms 2.34 2.50 <.001 $5,016 $5,715 <.001
300: Neurotic disorders 5.75 5.21 <.001 $4,854 $5,021 .383
969: Poison by psychotropic agents 1.77 1.80 .082 $3,726 $4,105 <.001
250: Diabetes mellitus 2.65 2.62 .499 $4,529 $4,899 <.001
  1. ADHD = attention-deficit/hyperactivity disorder; GLM = generalized linear model; NEC = not elsewhere classified; NOS = not otherwise specified.
  2. a Predicted values derived following GLM regressions for length of stay and costs.
  3. b Covariates estimated in the GLM regressions include age, gender, race, primary expected payer, geographic region, hospital teaching status, hospital bed size, urban or rural location, admission source, discharge destination, year of discharge, comorbidities, and an ADHD indicator flag.