Table 2 Number of included studies for each country

Eastern Europe

Czech Republic

6

.903 (36)^b

Hungary

1

.879 (43)^a

Romania

1

.837 (63)^a

Slovakia

2

.880 (42)^a

Northern Europe

Denmark

4

.955 (16)^b

Finland

4

.959 (12)^b

Iceland

1

.969 (3)^b

Ireland

2

.965 (5)^b

Lithuania

1

.870 (46)^a

Norway

2

.971 (1)^b

United Kingdom

14

.947 (21)^b

Sweden

1

.963 (7)^b

Southern Europe

Greece

1

.942 (25)^b

Italy

2

.951 (18)^b

Portugal

1

.909 (34)^b

Spain

12

.955 (15)^b

Turkey

3

.806 (79)^a

Western Europe

Austria

3

.955 (14)^b

Belgium

2

.953(17)^b

France

7

.961 (8)^b

Germany

2

.947 (22)^b

The Netherlands

4

.964 (6)^b

Total

76