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Table 2 Distribution of rare diseases related hospital admissions by age at admission in Hong Kong (2005–2016)

From: Healthcare burden of rare diseases in Hong Kong – adopting ORPHAcodes in ICD-10 based healthcare administrative datasets

Age group

Number of admissions in the rare disease population (% of the total rare disease population)

Number of admissions in the general population (% of the total general population, including all diseases)

0–4

97,416 (17.8%)

1,373,714 (8.0%)

5–9

34,438 (6.3%)

259,111 (1.5%)

10–14

26,776 (4.9%)

208,713 (1.2%)

15–19

28,565(5.2%)

256,811 (1.5%)

20–24

26,808 (4.9%)

369,707 (2.2%)

25–29

27,598 (5.0%)

597,883 (3.5%)

30–34

28,001 (5.1%)

824,150 (4.8%)

35–39

21,554 (3.9%)

768,238 (4.5%)

40–44

17,983 (3.3%)

709,462 (4.2%)

45–49

21,336 (3.9%)

914,342 (5.3%)

50–54

28,092 (5.1%)

1,161,757 (6.8%)

55–59

30,965 (5.7%)

1,284,643 (7.5%)

60–64

30,686 (5.6%)

1,273,321 (7.5%)

65–69

28,174 (5.2%)

1,238,402 (7.2%)

70–74

25,249 (4.6%)

1,298,569 (7.6%)

75–79

27,861 (5.1%)

1,494,884 (8.7%)

80–84

23,493 (4.3%)

1,397,762 (8.2%)

85+

21,678 (4.0%)

1,659,092 (9.7%)

Total

546,673

17,090,561