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Table 4–3(Continued). Summary of cross-sectional studies that used questionnaires to assess the health effects of indoor air contaminants in general or CCP specifically

	Study	Country	Methods	CCP-exposed workers			Results
				Number responding to survey[1]	Workers with complaints
					Number	%
Mendellet 1991 and Fisk et al. 1993	United States	Authors surveyed 880 workers in 12 office buildings. Building characteristics were described, and ambient measures of air quality were taken.	142	82	58	Increased prevalence of some symptoms was associated with several job and workspace factors—including presence of carpet, the use of CCP and photocopiers, air quality spacesharing, and distance from a window. Statistically significant observed between use of CCP and symptoms such as eye, nose, or throat (OR=1.6) and chest tightness/difficulty breathing (OR=2.3).

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See footnotes at end of table.

1. The number of CCP-exposed workers surveyed was not generally known except for those responding to the surveys; therefore, response rates were unknown.