Topic | Description | Number |
---|---|---|
Study characteristics | Studies contributing age groups | 45 |
Studies comprising several distinct substudiesa | 3 | |
Countries represented | 17 | |
Setting | General population | 21 |
Primary care practice | 12 | |
Hospital/nursing home | 3 | |
Health insurance | 8 | |
Several settings (and different data sets)b | 1 | |
Disease classification | Name of diseases/disease groups only | 30 |
Diseases based on international classification systems | 15 | |
No. of diseases in the classification | Range of diseases under study | 5 to over 300 |
Median | 16 | |
Data collection period | Up to one year | 25 |
One year or more | 19 | |
Several periodsc | 1 | |
No. of study participants | Range of persons under study | 301 to 5.6 million |
Median | 6864 | |
No. of age groups | 1 | 26 |
2 to 3 | 9 | |
4 to 6 | 10 |