Table 1 Global and regional prevalence of Ascaris infection, and estimated numbers of infected people (results from 758 datasets performed in 81 countries)
From: Global prevalence of Ascaris infection in humans (2010–2021): a systematic review and meta-analysis
SDG regionsa (number of datasets available for a particular region) | Number of people screened (total) | Number of test positive people | Pooled prevalence, % (95% CI) | Estimated global or regional population (2020) | Estimated number of infected people in millions (95% CI) |
|---|---|---|---|---|---|
Global (758)b | 4,923,876 | 164,879 | 11.01 (10.27–11.78) | 6,646,738,000 | 731,805,853 (682,619,992–782,985,736) |
Eastern and South-eastern Asia (162) | 1,153,432 | 35,374 | 9.82 (8.44–11.30) | 2,346,709,000 | 230,446,823 (198,062,239–265,178,117) |
South-eastern Asia (97) | 174,530 | 27,780 | 19.06 (15.51–22.87) | 668,620,000 | 127,438,972 (103,702,962–152,913,394) |
Eastern Asia (65) | 978,902 | 7594 | 1.39 (1.07–1.74) | 1,678,090,000 | 23,325,451 (17,955,563–29,198,766) |
Latin America and the Caribbean (110) | 182,807 | 13,973 | 12.75 (10.75–14.88) | 653,962,000 | 83,380,155 (70,300,915–97,309,545) |
South America (86) | 173,479 | 12,352 | 11.58 (9.49–13.84) | 430,760,000 | 49,882,008 (40,879,124–59,617,184) |
Central America (20) | 7184 | 1424 | 18.83 (13.04–25.42) | 179,670,000 | 33,831,861 (23,428,968–45,672,114) |
Caribbean region (4) | 2144 | 197 | 11.41 (4.38–21.09) | 43,532,000 | 4,967,001 (1,906,701–9,180,898) |
Sub-Saharan Africa (353) | 774,117 | 92,804 | 11.66 (10.56–12.81) | 1,094,366,000 | 127,603,075 (115,565,049–140,188,284) |
Western Africa (117) | 138,888 | 10,583 | 1107 (8.75–13.63) | 401,861,000 | 44,486,012 (35,162,837–54,773,654) |
Eastern Africa (184) | 594,973 | 75,655 | 11.12 (9.86–12.45) | 445,405,000 | 49,529,036 (43,916,933–55,452,922) |
Southern Africa (6) | 3426 | 697 | 14.48 (6.27–25.30) | 67,504,000 | 9,774,579 (4,232,500–17,078,512) |
Middle Africa (46) | 36,830 | 5869 | 15.31 (11.39–19.69) | 179,596,000 | 27,496,147 (20,455,984–35,362,452) |
Central and Southern Asia (92) | 389,695 | 15,434 | 12.91 (10.01–16.13) | 2,014,709,000 | 260,098,931 (201,672,370–324,972,561) |
Southern Asia (89) | 375,197 | 14,839 | 13.10 (10.01–16.54) | 1,940,370,000 | 254,188,470 (194,231,037–320,937,198) |
Central Asia (3) | 14,498 | 595 | 8.02 (0.24–24.90) | 74,339,000 | 5,961,987 (178,413–18,510,411) |
Northern Africa &Western Asia (37) | 2,422,161 | 6869 | 2.04 (1.47–2.70) | 525,869,000 | 10,727,727 (7,730,274–14,198,463) |
Northern Africa (7) | 20,313 | 239 | 4.01 (0.85–9.20) | 246,232,000 | 9,873,903 (2,092,972–22,653,344) |
Western Asia (30) | 2,401,848 | 6630 | 1.71 (1.14–2.38) | 279,637,000 | 4,781,792 (3,187,861–6,655,360) |
Oceania (Melanesia sub-region) (4)c | 1664 | 425 | 28.77 (7.07–57.66) | 11,123,000 | 3,200,087 (786,396–6,413,521) |