Series

Country of Study

Average Age (Years)

Extremes (Years)

Our series

Senegal

45

8 - 88

Jouitei et al.

Morocco

43.5

3 - 89

Ilboudo et al.

Burkina Faso

35.5 ± 14

10 - 78

Andoulo et al.

Cameroon

42.3 ± 16.7

9 - 82

Mihara et al.

Japan

43.5

13 - 86

Khakoo et al.

USA

60

19 - 90

Andersen et al.

Danmark

59

55 - 64