Table 3.
Age specific crude admission rates of skeletal dysplasias per 1,000,000 population per year in Sri Lanka during 2017–2020
| 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) | |||||||||||
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
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
bConfidence intervals should not be calculated and used for crude rates based on less than 10 events, as they are not reliable