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Table 3 Age specific crude admission rates of skeletal dysplasias per 1,000,000 population per year in Sri Lanka during 2017–2020

From: The burden of hospital admissions for skeletal dysplasias in Sri Lanka: a population-based study

 

2017

2018

2019

2020

Total

Age group

N

(% total)

Populationa (in 1000s)

Crude Rate

(95% CI)

N

(% total)

Populationa (in 1000s)

Crude Rate

(95% CI)

N

(% total)

Populationa (in 1000s)

Crude Rate

(95% CI)

N

(% total)

Populationa (in 1000s)

Crude Rate

(95% CI)

N

(% total)

Average Population (in 1000s)

Crude Rate

(95% CI)

0–4

45

1839

24.5

76

1859

40.9

80

1871

42.8

67

1881

35.6

268

1862.5

143.9

 

(40.2%)

 

(17.3–31.6)

(43.2%)

 

(31.7–50.1)

(45.7%)

 

(33.4–52.1)

(46.9%)

 

(27.1–44.1)

(44.2%)

 

(126.7-161.1)

5–9

28

1843

15.2

40

1863

21.5

42

1874

22.4

28

1885

14.9

138

1866.25

73.9

 

(25%)

 

(9.6–20.8)

(22.7%)

 

(14.8–28.1)

(24%)

 

(15.6–29.2)

(19.6%)

 

(9.4–20.4)

(22.8%)

 

(61.6–86.3)

10–14

25

1729

14.5

40

1748

22.9

39

1759

22.2

27

1768

15.3

131

1751

74.8

 

(22.3%)

 

(8.8–20.1)

(22.7%)

 

(15.8–30.0)

(22.3%)

 

(15.2–29.1)

(18.9%)

 

(9.5–21.0)

(21.6%)

 

(62.0-87.6)

15–19

12

1733

6.9

10

1752

5.7

12

1763

6.8

14

1773

7.9

48

1755.25

27.3

 

(10.7%)

 

(3.0-10.8)

(5.7%)

 

(2.2–9.3)

(6.9%)

 

(3.0-10.7)

(9.8%)

 

(3.8–12.0)

(7.9%)

 

(19.6–35.1)

20+

2

14,300

0.1

10

14,448

0.7

2

14,536

0.1

7

14,612

0.5

21

14,474

1.5

 

(1.8%)

 

(N/Ab)

(5.7%)

 

(0.3–1.1)

(1.1%)

 

(N/Ab)

(4.9%)

 

(N/Ab)

(3.5%)

 

(0.8–2.1)

All ages

112

21,444

5.2

176

21,670

8.1

175

21,803

8.0

143

21,919

6.5

606

21,709

27.9

   

(4.3–6.2)

  

(6.9–9.3)

  

(6.8–9.2)

  

(5.5–7.6)

  

(25.7–30.1)

  1. Percentage (%) values were rounded up to the first decimal point for presentation purposes. Hence, total might not add up to 100.0%. N, number of hospital admissions; CI, confidence interval; N/A, not applicable
  2. aMid-year population data retrieved from Registrar General’s Department, Sri Lanka [15]. Age-specific population estimates have been calculated using the age distribution of Census of Population and Housing 2012
  3. bConfidence intervals should not be calculated and used for crude rates based on less than 10 events, as they are not reliable