Læknablaðið - 15.03.1991, Page 7

LÆKNABLAÐIÐ
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Table III. Prevalence of symploms (%) in 10 buildings.
Symptom Buildings
1 2 3 4 5 6 7 8 9 10
Eye irritation 41.8 17.4 16.7 59.2 14.5 42.9 71.4 55.6 22.2 10.2
Red eyes 28.2 15.2 8.3 51.3 10.9 25.0 42.9 27.8 22.2 4.1
Watering eyes 14.7 4.5 4.2 27.0 5.5 17.9 28.6 22.2 14.8 10.2
Other eye complaints 23.7 12.9 29.2 20.6 5.5 25.0 42.9 22.2 22.2 6.1
Any eye complaints 50.3 25.8 41.7 66.3 20.0 50.0 71.4 55.6 33.3 14.0
Nasal complaints 49.2 19.7 16.7 60.7 7.3 32.1 28.6 55.6 33.3 14.3
Cough 17.5 6.1 - 25.1 7.3 17.9 14.3 22.2 18.5 4.1
Lethargy 46.3 18.9 20.8 53.6 12.7 32.1 71.4 61.1 25.9 14.3
Shortness of breath 8.5 3.8 - 6.7 3.6 3.6 - 5.6 - 2.0
Tight chest 13.6 7.6 8.3 17.2 5.5 17.9 14.3 11.1 - 2.0
Fever 7.3 2.3 4.2 7.5 - 3.6 7.1 11.1 7.4 2.0
Chill 13.0 5.3 4.2 17.6 3.6 10.7 28.6 22.2 14.8 4.1
Myalgia 11.9 8.3 4.2 17.2 10.9 10.7 21.4 11.1 11.1 4.1
Headache 49.2 19.7 29.2 51.7 12.7 21.4 35.7 50.0 25.9 10.2
Face 23.7 15.2 8.3 26.6 7.3 14.3 14.3 5.6 22.2 4.0
Hands/forearms 13.0 13.6 8.3 18.7 3.6 3.6 21.4 16.7 22.2 4.0
Other sites 13.0 8.3 8.3 35.2 3.6 7.1 14.3 16.7 25.9 14.0
Any skin symptom 33.3 29.5 20.8 40.8 9.1 17.9 21.4 33.3 37.0 22.0
Table IV. Risk ratio and 95% conftdence limits: comparison of prevalence of symptoms naturally ventilated buildings. in different Iniildings with
Symptoms Character of buildings
Natural ventilation n=105 Mechanical ventilation, humidified n=156 Buildings studied at request Questionnaire mailed Mechanical Mechanical ventilation ventilation humidified humidified n=204 n=60 Mechanical ventilation, not humidified n=267
RR RR CL RR CL RR CL RR CL
Eye irritation . 1.0 1.5 0.7-3.0 4.6* 2.5-8.4 8.1* 3.9-16.7 10.3* 5.9-18.0
Red eyes . 1.0 2.0 0.9-4.6 4.6* 2.2-9.6 5.2* 2.2-12.2 12.8* 6.7-24.3
Watering eyes . 1.0 0.7 0.2-1.9 2.4** 1.0-5.6 3.9« 1.5-9.9 5.2* 2.4-10.9
Other eye complaints . 1.0 3.0** 1.2-7.4 5.1* 2.2-11.5 6.5* 2.6-16.3 4.3* 1.9-9.7
Any eye complaints . 1.0 1.9** 1.0-3.5 4.5* 2.6-7.8 6.3* 3.2-12.6 9.5* 5.7-15.9
Nasal complaints . 1.0 2.0** 1.0-4.2 7.7* 4.2-14.4 5.3* 2.5-11.5 13.2* 7.4-23.5
Cough . 1.0 0.9 0.3-2.7 3.5« 1.5-8.3 3.7** 1 1.4-10.1 5.5* 2.5-12.2
Lethargy . 1.0 1.5 0.8-3.1 5.0* 2.8-9.1 6.5* 3.2-13.3 7.5* 4.3-13.1
Shortness of breath . 1.0 1.1 0.3-4.8 2.7 0.8-9.1 1.2 0.2-7.2 2.5 0.7-8.2
Tight chest . 1.0 2.1 0.7-6.6 3.4** 1.2-9.5 4.5** 1.4-14.0 5.3* 2.0-13.6
Fever . 1.0 2.7 0.3-22.9 8.3** 1.5-46.2 7.4** 1.1-50.4 8.4’* 1.5-46.1
Chill . 1.0 1.4 0.4-4.6 3.9« 1.4-10.6 5.7# 1.9-16.9 5.4* 2.1-14.0
Myalgia . 1.0 1.0 0.4-2.6 1.6 0.7-3.7 1.9 0.7-5.2 2.5** 1.2-5.4
Headache . 1.0 2.1** 1.0-4.2 6.6* 3.6-12.2 3.9D 1.8-8.4 8.3* 4.6-14.8
Face . 1.0 2.7** 1.1-6.7 5.1* 2.2-11.5 2.2 0.7-6.7 6.0* 2.7-13.1
Hands/forearms . 1.0 3.7** 1.3-10.5 4.2J 1.5-11.4 3.3 1.0-11.3 5.8* 2.3-14.9
Other sites . 1.0 1.0 0.4-2.4 1.8 0.8-4.0 1.4 0.5-4.0 5.8* 3.0-11.3
Any skin symptoms . 1.0 2.2** 1.2-4.1 2.8* 1.6-5.1 1.7 0.8-3.8 3.8* 2.2-6.7
Significance of difference when compared with symptoms in naturaliy ventilated buildings, ")p<0.05, (J)p<0.01, *)p<0.001.