TABLE 1.

Demographic characteristics, comorbidities, and postoperative complications among pediatric patients undergoing CM-I decompression surgery

Variable	No. of Pts	%
Total	936	100
Age (yrs)
0–5	228	24.4
6–12	332	35.5
13–18	376	40.2
Sex*
Male	448	49.6
Female	456	50.4
Race*
White	537	62.1
Black	73	8.4
Hispanic	181	20.9
Other	74	8.6
Payer status
Private	562	60.0
Medicaid	299	31.9
Other	75	8.0
Comorbidity
Cardiovascular disease	46	4.9
Congenital or genetic disease	79	8.4
Gastrointestinal disease	—†	—†
Hematol or immunol disease	14	1.5
Hydrocephalus	61	6.5
Metabolic disease	11	1.2
Neoplastic disease	—†	—†
Neuromuscular disease	142	15.2
Renal disease	—†	—†
Respiratory disease	12	1.3
Scoliosis	128	13.7
Syringomyelia	273	29.2
Complications
Surgical	119	12.7
Medical	24	2.6
Major‡	13	1.4

Hematol = hematological; immunol = immunological.

^*Sum of all groups is less than 936 due to the presence of missing data for sex (n = 32) and race (n = 71).

^†Suppressed because of cell size of 10 or less, due to restrictions defined by the Healthcare Cost and Utilization Project.

^‡Includes myocardial infarction/heart failure, pulmonary embolism, and iatrogenic cerebrovascular infarction or hemorrhage.