Table 3.

Key baseline comorbidities at time of HRF application. Table 2: By age category; Table 3: By diagnosis category. The categories: “Deep Infection with Nonunion” and “Deep Infection Only” were aggregated under “Deep Infection” as values were similar for both. Comorbidity by Diagnosis Group—Adult Population

	Adult Patients					Pediatric Patients
Variables	Acquired Deformity (N = 107)	Arthrosis (N = 37)	Deep Infection, with or without nonunion (N = 172)	Fracture (N = 1,275)	Nonunion—no infection (N = 73)	Congenital Deformity (N = 75)	Fracture (N = 44)
Age (mean, standard deviation)	44.4 (17.2)	54.7 (10.6)	51.7 (16.6)	49.7 (17.7)	48.7 (16.3)	9.7 (4.4)	12.2 (3.6)
All Hypertension (with or without complications)	47 (43.9%)	25 (67.6%)	106 (61.6%)	506 (39.7%)	35 (47.9%)	1 (1.3%)	0 (0.0%)
All Diabetes (with or without complications)	42 (39.3%)	29 (78.4%)	89 (51.7%)	239 (18.7%)	16 (21.9%)	1 (1.3%)	0 (0.0%)
Complicated Diabetes	28 (26.2%)	17 (45.9%)	59 (34.3%)	112 (8.8%)	7 (9.6%)	0 (0.0%)	0 (0.0%)
Obesity	27 (25.2%)	7 (18.9%)	27 (15.7%)	174 (13.6%)	12 (16.4%)	16 (21.3%)	4 (9.1%)
Chronic Pulmonary Disease	12 (11.2%)	4 (10.8%)	33 (19.2%)	195 (15.3%)	11 (15.1%)	7 (9.3%)	6 (13.6%)
Fluid and Electrolyte Disorders	7 (6.5%)	4 (10.8%)	37 (21.5%)	164 (12.9%)	8 (11.0%)	1 (1.3%)	1 (2.3%)
Depression	12 (11.2%)	5 (13.5%)	33 (19.2%)	146 (11.5%)	14 (19.2%)	0 (0.0%)	2 (4.5%)
Cardiac Arrythmia	6 (5.6%)	3 (8.1%)	27 (15.7%)	107 (8.4%)	2 (2.7%)	1 (1.3%)	1 (2.3%)
Hypothyroidism	12 (11.2%)	4 (10.8%)	33 (19.2%)	105 (8.2%)	4 (5.5%)	1 (1.3%)	0 (0.0%)
Alcohol Abuse	1 (0.9%)	2 (5.4%)	13 (7.6%)	121 (9.5%)	2 (2.7%)	0 (0.0%)	1 (2.3%)
Renal Failure	10 (9.3%)	6 (16.2%)	25 (14.5%)	84 (6.6%)	6 (8.2%)	0 (0.0%)	0 (0.0%)
Drug Abuse	0 (0.0%)	0 (0.0%)	18 (10.5%)	103 (8.1%)	3 (4.1%)	0 (0.0%)	2 (4.5%)
Average Elixhauser Index	1.9 (1.9)	2.7 (1.9)	3.0 (2.3)	1.8 (2.1)	1.8 (2.1)	0.5 (0.8)	0.4 (1.0)