Journal of Occupational Medicine and Toxicology

Table 4 Linear mixed-effects model for the log _e -transformed personal endotoxin exposure levels of female workers

From: Respiratory symptoms, fractional exhaled nitric oxide & endotoxin exposure among female flower farm workers in Ethiopia

	Endotoxin (EU/m ³ )
	Random-effects	Mixed-effects	Effect (e ^β )
	Model β (SE)	Model β (SE)	Effect (e ^β )
Intercept	3.14 (0.09)**	2.67 (0.15)**
Workstation (OGH = 0 & IGH = 1)		0.35 (0.16)*	1.4
Farm ID (Farm II = 0 & Farm I = 1)		0.53 (0.16)**	1.7
WWδ (SE)	0.35 (0.09)	0.35 (0.09)
BWδ (SE)	0.17 (0.09)	0.08 (0.08)
% of explained variance		17%

SE: Standard Error; β: Regression Coefficient; IGH: Inside Greenhouse; OGH: Outside Greenhouse; WWδ: Within Worker Variance; BWδ: Between Worker Variance; **P < 0.01, *P < 0.05.

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ISSN: 1745-6673

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