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2597 Studies found for: sleep AND Pittsburgh Sleep Quality Index AND quality of sleep

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Map Legend
Region Name Number of Studies
World [map] 2,597
Europe 636
Austria 12 [studies]
Belgium 40 [studies]
Bulgaria 9 [studies]
Croatia 3 [studies]
Denmark 74 [studies]
Estonia 1 [studies]
Finland 6 [studies]
France 74 [studies]
Germany 72 [studies]
Greece 10 [studies]
Hungary 4 [studies]
Iceland 4 [studies]
Ireland 16 [studies]
Italy 45 [studies]
Lithuania 1 [studies]
Luxembourg 2 [studies]
Netherlands 37 [studies]
Norway 17 [studies]
Poland 15 [studies]
Portugal 8 [studies]
Romania 2 [studies]
Slovakia 2 [studies]
Slovenia 2 [studies]
Spain 120 [studies]
Sweden 12 [studies]
Switzerland 41 [studies]
United Kingdom 86 [studies]

Click on a [map] link to show a map of that region.

Click on a [studies] link to search within your current results for studies in that region. Use the back button to return to this list and try another region.

Studies with no locations are not included in the counts or on the map.

Studies with multiple locations are included in each region containing locations.