Table 2.
Medians of the total knowledge score by the 34 rare diseases of concern
| Type of rare diseases | No. of physicians (%) | Total | Eastern | Central | Western |
|---|---|---|---|---|---|
| Median (IQR) | |||||
| Albinism | 466 (14.58%) | 2.00 (2.00) | 2.00 (2.00) | 2.00 (2.00) | 2.00 (1.00) |
| Hepatolenticular degeneration | 379 (11.85%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) |
| Multiple sclerosis | 347 (10.85%) | 1.00 (1.00) | 1.00 (1.00) | 1.00 (0.00) | 1.00 (0.00) |
| Hemophilia | 293 (9.16%) | 3.00 (1.00) | 3.00 (1.00) | 3.00 (1.00) | 3.00 (1.00) |
| Marfan syndrome | 224 (7.01%) | 2.00 (0.00) | 2.00 (0.00) | 2.00 (0.00) | 2.00 (0.00) |
| Idiopathic pulmonary arterial hypertension | 168 (5.25%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (0.50) |
| Systemic sclerosis | 152 (4.75%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.25) |
| General myathenic gravis | 146 (4.57%) | 2.00 (2.00) | 2.00 (1.00) | 1.50 (1.75) | 2.00 (2.00) |
| Amyotrophic lateral sclerosis | 124 (3.88%) | 1.00 (1.00) | 1.00 (1.00) | 1.00 (1.00) | 2.00 (0.00) |
| Osteogenesis imperfecta | 118 (3.69%) | 1.00 (1.00) | 1.00 (1.00) | 1.50 (1.00) | 2.50 (1.25) |
| Langerhans cell histiocytosis | 110 (3.44%) | 2.00 (1.00) | 3.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) |
| Neuromyelitis optica | 89 (2.78%) | 2.00 (0.00) | 2.00 (0.00) | 2.00 (0.00) | 2.00 (0.50) |
| Phenylketonuria | 71 (2.22%) | 1.00 (1.00) | 1.00 (1.00) | 1.00 (1.00) | 0.00 (0.50) |
| Duchenne muscular dystrophy | 67 (2.10%) | 2.00 (0.50) | 2.00 (1.00) | 2.00 (0.00) | 1.00 (1.00) |
| Lymphangioleiomyomatosis | 57 (1.78%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (0.25) | 2.00 (0.00) |
| Idiopathic hypogonadotropic hypogonadism | 49 (1.53%) | 2.00 (1.00) | 2.00 (0.00) | 1.00 (1.00) | 2.00 (0.00) |
| Prader–Willi syndrome | 46 (1.44%) | 1.00 (1.00) | 1.00 (0.75) | 1.00 (1.00) | 2.00 (2.00) |
| Congenital adrenal hypoplasia | 44 (1.38%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (0.00) |
| Tuberous sclerosis complex | 38 (1.19%) | 2.00 (0.00) | 2.00 (0.75) | 2.00 (0.00) | 2.00 (0.25) |
| Spinal muscular atrophy | 30 (0.94%) | 1.50 (1.00) | 2.00 (1.00) | 1.00 (1.00) | 1.50 (0.50) |
| Kallmann syndrome | 26 (0.81%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (0.25) | 1.50 (1.25) |
| Homozygous hypercholesterolemia | 25 (0.78%) | 2.00 (1.00) | 2.00 (0.75) | 1.00 (1.00) | 2.00 (0.50) |
| Hereditary epidermolysis bullosa | 23 (0.72%) | 2.00 (1.00) | 2.00 (1.00) | 1.00 (1.00) | – |
| Fabry disease | 20 (0.63%) | 2.00 (0.25) | 2.00 (0.00) | 2.00 (0.75) | 2.00 (1.00) |
| Huntington disease | 17 (0.53%) | 2.00 (1.00) | 2.00 (1.00) | 2.00 (1.00) | 1.00 (0.50) |
| Gaucher disease | 16 (0.50%) | 2.00 (1.25) | 2.00 (1.00) | 3.00 (0.75) | 2.00 (0.00) |
| Spinocerebellar ataxia | 15 (0.47%) | 1.00 (1.50) | 1.00 (2.00) | 0.50 (1.00) | 0.50 (0.50) |
| Niemann-Pick disease | 12 (0.38%) | 3.00 (1.00) | 3.00 (1.00) | 3.00 (1.00) | – |
| Mucopolysaccharidosis | 6 (0.19%) | 2.00 (0.75) | 2.00 (0.00) | 2.50 (0.50) | 2.50 (0.50) |
| Severe myoclonic epilepsy in infaricy | 6 (0.19%) | 2.00 (1.50) | 2.00 (0.00) | 1.00 (1.00) | 2.00 (1.00) |
| Hyperphenylalaninemia | 5 (0.16%) | 2.00 (1.00) | 1.00 (0.00) | 2.50 (0.50) | 2.00 (0.00) |
| Spinal and bulbar muscular atrophy | 4 (0.13%) | 1.00 (0.25) | 0.50 (0.50) | 1.00 (0.00) | – |
| Type II glycogen storage disease | 3 (0.09%) | 1.00 (0.50) | 1.00 (0.00) | 1.50 (0.50) | – |
| Tetrahydrobiopterin deficiency | 1 (0.03%) | 1.00 (0.00) | 1.00 (0.00) | – | – |
–No physicians answered the relevant knowledge questions