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. 2018 Aug 31;15(9):1887. doi: 10.3390/ijerph15091887

Table 2.

Descriptive statistics of the houses of participants who completed a questionnaire.

Building Characteristics % N
Type of building 7589
Detached 86.6
Semi-detached 2.2
Terraced 9.0
Apartment 2.2
Self-reported floor construction
Living room 6612
concrete floor only 32.0
wooden floor only 60.9
concrete and wooden floor 2.7
Bedroom 6500
concrete floor only 25.9
wooden floor only 67.2
concrete and wooden floor 1.9
% buildings with triple glazing 49.5 7021
Property foundations
crawlspace (n) 1228
cellar (n) 2810
concrete slab (n) 1523