Table 3 Rare disease in Hong Kong at a glance (2005–2016)
Orphanet classification | Number of people (%) | Mean (median) age | Number of people <=18 years old (%) | Estimated prevalence, as of 2016 |
|---|---|---|---|---|
Rare developmental defect during embryogenesis disease | 33,731 (21.9) | 21.4 (11.9) | 23,835 (70.7) | 457 per 100,000 |
Rare haematologic disease | 24,615 (16.0) | 51.8 (37) | 3331 (13.5) | 334 per 100,000 |
Rare neurologic disease | 23,707 (15.4) | 56.1 (57.7) | 4507 (19.0) | 321 per 100,000 |
Rare neoplastic disease | 14,556 (9.4) | 70.6 (61.0) | 757 (5.2) | 197 per 100,000 |
Rare endocrine disease | 9923 (6.4) | 48.9 (53.7) | 2893 (29.2) | 135 per 100,000 |
Rare systemic or rheumatologic disease | 8678 (5.6) | 42.0 (48.5) | 3411 (39.3) | 118 per 100,000 |
Rare otorhinolaryngologic disease | 7726 (5.0) | 54.4 (60.0) | 2052 (26.6) | 105 per 100,000 |
Rare cardiac disease | 6581 (4.3) | 63.9 (65.0) | 300 (4.6) | 89 per 100,000 |
Rare respiratory disease | 4810 (3.1) | 21.4 (10.5) | 3739 (77.7) | 65 per 100,000 |
Rare inborn errors of metabolism | 4287 (2.8) | 57.1 (44.6) | 707 (16.5) | 58 per 100,000 |
Rare eye disease | 3303 (2.1) | 22.6 (9.9) | 2422 (73.3) | 45 per 100,000 |
Rare skin disease | 2646 (1.7) | 68.1 (79.8) | 220 (8.3) | 36 per 100,000 |
Rare renal disease | 2532 (1.6) | 12.9 (8.7) | 2230 (88.1) | 34 per 100,000 |
Rare hepatic disease | 2455 (1.6) | 69.8 (71.0) | 66 (2.7) | 33 per 100,000 |
Rare gastroenterologic disease | 2447 (1.6) | 72.0 (78.8) | 24 (1.0) | 33 per 100,000 |
Rare bone disease | 1191 (0.8) | 39.9 (37.0) | 408 (34.3) | 16 per 100,000 |
Rare gynecologic or obstetric disease | 653 (0.4) | 48.5 (46.0) | 2 (0.3) | 9 per 100,000 |
Rare urogenital disease | 119 (0.1) | 39.3 (34.1) | 27 (22.7) | 2 per 100,000 |
Rare immune disease | 78 (0.1) | 30.2 (35.7) | 45 (57.7) | 1 per 100,000 |
Rare odontologic disease | 32 (0.0) | 40.4 (45.2) | 11 (34.4) | < 1 per 100,000 |
Rare abdominal surgical disease | 5 (0.0) | 56.1 (57.3) | 0 (0.0) | 1 per 1,000,000 |
Rare circulatory system disease | 2 (0.0) | 36.6 (36.6) | 0 (0.0) | < 1 per 1,000,000 |
Total | 144,444 |