Abstract:
ObjectiveTo explore the relationship between central air conditioning system at workplaces and sick building syndrome(SBS)among workers for making intervention measures.
MethodsA case-control study was conducted among 887 workers from 2 factories with central air conditioning system and 892 workers in 2 factories without central air conditioning system with a self-administered questionnaire survey.The SBS-related symptoms were compared between the two groups.
ResultsThere were significant differences in SBS-related symptoms between the cases and the controls(
P<0.05 for all).The results of univariate analysis indicated that the SBS-related symptoms were correlated with central air conditioning system,with the odds ratios(
ORs)of SBS-related symptoms of 1.137-5.823(
P<0.05 for all symptoms,except for headache).The results of multivariate analysis also confirmed the associations of SBS-related symptoms with central air conditioning system,with the
ORs of 0.986-5.258(
P<0.05 for all,except for headache and dizziness).
ConclusionThe workers in workplaces with central air conditioning system are more likely to have SBS-related symptoms compared to the workers in owrkplaces without the central air conditioning system.