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Table 3 Length of Stay and Costs, by Cohort, Primary Diagnosis, and Age Group

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

  Length of Stay Costs
  Patients with a Secondary ADHD Diagnosis Patients without an ADHD Diagnosis P Value Patients with a Secondary ADHD Diagnosis Patients without an ADHD Diagnosis P Value
Primary Diagnosis Mean Std. Error Mean Std. Error   Mean Std. Error Mean Std. Error  
Patients aged 6-11 Years           
296 - Affective psychoses 9.41 0.42 8.80 0.52 .102 $7,221 $504 $7,170 $578 .876
313 - Emotional disturbances 10.98 0.71 10.90 0.96 .928 $9,057 $919 $9,479 $948 .596
312 - Conduct disturbance NEC 11.32 0.79 11.82 1.12 .543 $9,967 $1,232 $10,946 $1,392 .185
780 - General symptoms 2.17 0.06 2.33 0.06 .014 $4,336 $231 $5,011 $253 .008
493 - Asthma 2.23 0.05 2.33 0.03 .006 $3,729 $183 $4,182 $152 .001
309 - Adjustment reaction 11.26 1.26 9.55 0.86 .029 $8,806 $1,513 $7,866 $917 .245
540 - Acute appendicitis 2.91 0.11 3.17 0.04 .014 $7,417 $248 $8,147 $141 .002
311 - Depressive disorder NEC 7.80 0.59 7.39 0.42 .462 $6,368 $761 $6,244 $489 .838
345 - Epilepsy 3.75 0.73 3.40 0.17 .643 $8,847 $1,475 $9,618 $659 .607
486 - Pneumonia, organism NOS 2.73 0.09 2.99 0.04 .006 $4,273 $216 $5,077 $152 .001
Patients aged 12-17 Years           
296 - Affective psychoses 8.42 0.37 7.38 0.23 <.001 $6,212 $322 $5,859 $274 .044
311 - Depressive disorder NEC 6.54 0.44 5.60 0.25 .005 $5,379 $500 $4,862 $372 .120
312 - Conduct disturbances NEC 11.70 1.22 10.84 1.00 .174 $10,874 $2,175 $9,544 $1,361 .154
313 - Emotional disturbances 9.57 0.84 8.12 0.57 .019 $8,259 $1,268 $6,633 $701 .038
309 - Adjustment reaction 6.97 0.59 5.72 0.38 .002 $5,371 $589 $4,669 $375 .055
540 - Acute appendicitis 2.71 0.08 2.76 0.03 .521 $7,954 $217 $8,181 $109 .235
780 - General symptoms 2.30 0.09 2.39 0.05 .202 $4,894 $253 $5,423 $215 .032
300 - Neurotic disorders 6.68 0.66 5.08 0.24 .006 $5,323 $455 $4,782 $285 .135
969 - Poisoning by psychotropic agents 1.62 0.08 1.62 0.03 .925 $3,577 $174 $3,897 $101 .088
250 - Diabetes mellitus 2.56 0.09 2.56 0.03 .961 $4,177 $198 $4,572 $124 .017
  1. ADHD = attention-deficit/hyperactivity disorder; NEC = Not elsewhere classified; NOS = not otherwise specified; SE = standard error.