Table 3.

Generalized linear mixed-effect model analysis of the impact of work tasks (reference: baking and cooking) on log-transformed cytokine (pg/mL) of TNF-α, IL-6, IL-8, IL-10, IL-1β, IL-4, IL-2, and IL-12. Coefficients and P-values are presented for each predictor, with significant associations highlighted in bold. Random intercepts were included to account for variability between participants.

Predictors	TNF-α		IL-1β		IL-8		IL-2		IL-6		IL-4		IL-10		IL-12
	Estimates	P	Estimates	P	Estimates	P	Estimates	P	Estimates	P	Estimates	P	Estimates	P	Estimates	P
Intercept	3.117	<0.001	2.995	<0.001	5.920	<0.001	1.487	0.004	0.779	0.011	3.358	<0.001	0.607	0.192	2.904	<0.001
Work task (ref. “baking and cooking”)
Cleaning	0.155	0.888	0.122	0.928	0.189	0.862	0.911	0.457	−0.103	0.884	0.347	0.694	−0.201	0.859	0.083	0.931
Delivery	2.157	0.027	1.992	0.115	1.879	0.055	2.107	0.070	1.519	0.026	0.864	0.293	1.292	0.215	0.346	0.720
Grinding and milling	−0.249	0.717	−0.979	0.285	−0.459	0.512	−0.194	0.818	−0.020	0.967	−0.642	0.282	−0.107	0.887	−0.531	0.446
Material handling	−0.607	0.203	−0.845	0.173	−0.815	0.090	−0.135	0.812	0.001	0.997	−0.203	0.614	0.833	0.104	−0.383	0.415
Packing	−2.314	0.002	−1.907	0.052	−2.042	0.007	−0.785	0.381	−0.737	0.161	−1.089	0.088	0.358	0.657	−0.394	0.598
Production line operations	−1.479	0.001	−1.956	0.001	−1.850	<0.001	−0.540	0.326	−0.296	0.358	−0.642	0.100	0.334	0.499	−0.366	0.424
Storage	−0.876	0.267	−0.728	0.467	−1.312	0.097	−0.557	0.543	−0.451	0.398	−0.657	0.315	0.735	0.377	−0.318	0.671
Weighing and mixing	0.237	0.603	0.182	0.761	0.273	0.553	0.590	0.284	0.171	0.596	0.007	0.987	−0.038	0.938	−0.110	0.811
Random effects
σ2	0.97		2.10		1.06		1.82		0.66		0.87		1.36		1.48
τ00 identifier	0.54		0.44		0.46		0.32		0.08		0.20		0.37		0.00
ICC	0.36		0.17		0.30		0.15		0.10		0.19		0.21
N identifiers	136		136		136		136		136		136		136		136
Observations	194		194		194		194		194		194		194		194
Marginal R2/Conditional R2	0.299/0.549		0.261/0.388		0.367/0.560		0.118/0.248		0.096/0.186		0.094/0.265		0.067/0.266		0.016/NA