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Table 2 Provider types on index claims of patients with strictly- and broadly-defined homocystinuria (HCU)

From: Prevalence, characteristics, and costs of diagnosed homocystinuria, elevated homocysteine, and phenylketonuria in the United States: a retrospective claims-based comparison

 Strictly-defined HCUaBroadly-defined HCUb
N = 2450N = 6613
Provider Types
 Cardiology40 (1.6%)129 (2.0%)
 Endocrinology25 (1.0%)51 (0.8%)
 Family medicine898 (36.7%)2483 (37.5%)
 Genetics6 (0.2%)9 (0.1%)
 Healthcare facility262 (10.7%)747 (11.3%)
 Hematology79 (3.2%)162 (2.4%)
 Internal medicine525 (21.4%)1378 (20.8%)
 Neurology164 (6.7%)327 (4.9%)
 Nurse or PA79 (3.2%)256 (3.9%)
 OB/GYN42 (1.7%)148 (2.2%)
 Oncology68 (2.8%)159 (2.4%)
 Pediatrics19 (0.8%)46 (0.7%)
 Psychiatry10 (0.4%)27 (0.4%)
 Surgery28 (1.1%)54 (0.8%)
 Unspecified MD112 (4.6%)312 (4.7%)
 Otherc101 (4.1%)344 (5.2%)
  1. a > 2 HCU diagnoses, including > 1 ICD-10 diagnosis; b > 1 ICD-10 HCU diagnosis; c Patients with > 1 claim with an HCU diagnosis code on their index date may be included in > 1 provider type category; HCU homocystinuria, MD Doctor of Medicine, OB/GYN obstetrician/gynecologist, PA physician’s assistant