Table 3

Distribution of included studies according to the development status of the country where the study was conducted [24].

Country type
N reporting only morbidity
N reporting only mortality
N reporting morbidity and mortality
Total

Industrialised (N = 43)
971
75
39
1085
Less developed (N = 95)
584
183
87
854
Least developed (N = 46)
123
69
36
228
Other (e.g. multicountry)
26
6
5
37
Overall
1704
333
167
2204

Gülmezoglu et al. BMC Medical Research Methodology 2004 4:16   doi:10.1186/1471-2288-4-16