ALL incidence rate (per 100,000 persons) | Mean | Median | s.d.b | Frequency | (%) |
---|---|---|---|---|---|
Weighted ALL incidence a (28 countries) | 17.61 | 16.40 | 11.75 | - | - |
Non-weighted ALL incidence rate (127 cancer registries) | 21.68 | 21.25 | 12.62 | - | - |
Characteristics of included countries (n = 28) | |||||
Gross National Product per capita for countries (USD$) | 11375.79 | 9520.00 | 1182.10 | - | - |
Human Development Index for countries | 0.80 | 0.87 | 0.14 | - | - |
Population size for countries | 118137528 | 36416282 | 265588002 | - | - |
Characteristics of H. pylori studies (n = 28) | |||||
H. pylori prevalence (%) | 26.56 | 19.30 | 21.46 | - | - |
Minimum age of children (years) | 2.21 | 1.50 | 2.25 | - | - |
Maximum age of children (years) | 6.21 | 5.00 | 2.43 | - | - |
Interval between ALL incidence and H. pylori surveys (years) | 4.11 | 3.00 | 4.78 | - | - |
Method of H. pylori detection | |||||
Serological assays using IgG | - | - | - | 25 | 89.29 |
Urea breath test | - | - | - | 3 | 10.71 |
Population source | |||||
Community-based | - | - | - | 10 | 35.71 |
Clinic-based | - | - | - | 18 | 64.29 |
Level of urbanization | |||||
Rural | - | - | - | 4 | 14.29 |
Urban | - | - | - | 16 | 57.14 |
Both rural and urban | - | - | - | 8 | 28.57 |
Region | |||||
Africa | - | - | - | 2 | 7.14 |
Americas | - | - | - | 4 | 14.29 |
Southeast Asia | - | - | - | 2 | 7.14 |
Europe | - | - | - | 14 | 50.00 |
Western Pacific | - | - | - | 6 | 21.43 |