| Respondents | Confidence interval 95% | ||
---|---|---|---|---|
 | N | % | Lower Bound (%) | Upper Bound (%) |
Fresh air intake vents in the bedroom | 735 | 57.3 | 54.6 | 60.0 |
Ventilation enhanced daily by opening the windows | 925 | 73.1 | 70.7 | 75.5 |
Humidifier | 67 | 5.1 | 3.8 | 6.4 |
Air purifier | 98 | 7.5 | 6.0 | 9.0 |
Combustion | Â | Â | Â | Â |
Fireplace | 451 | 34.4 | 31.7 | 37.1 |
Wood stove | 300 | 22.9 | 20.6 | 25.2 |
Wooden sauna stove | 244 | 18.6 | 16.4 | 20.8 |
Gas stove | 44 | 3.4 | 2.4 | 4.4 |
Severe water damage in the past 12 months | 33 | 2.6 | 1.7 | 3.5 |
Damage repaired by | Â | Â | Â | Â |
Removing the damaged materials | 99 | 7.5 | 3.6 | 11.4 |
Drying the structures | 94 | 7.2 | 3.3 | 11.1 |
No actions have been taken | 26 | 2.0 | -0.1 | 4.1 |
Current moisture or mould damage | 70 | 5.3 | 4.1 | 6.5 |
Size of the damage is large | Â | 0.1 - 0.5 | Â | Â |
Main cause of the damage | Â | Â | Â | Â |
Inside sources (plumbing leak etc.) | 30 | 2.3 | -0.7 | 5.3 |
Outside sources (roof leaks etc.) | 23 | 1.8 | -0.9 | 4.5 |
Cause unknown | 29 | 2.2 | -0.7 | 5.1 |
Lighting deficiencies | 524 | 39.9 | 37.2 | 42.6 |
Daily noise caused by road traffic | 276 | 22.4 | 20.1 | 24.7 |
Occasional/seasonal noise caused by yard work | 330 | 28.6 | 26.0 | 31.2 |