Evaluation of chemical-specific IgG antibodies in male workers from a urethane foam factory

Table 3 The comparison of TDI- and TMA-specific IgGs between the urethane foam factory workers and controls

Concentration of specific IgG^‡	Controls	Workers	OR (95% CI)	P value^†
TDI (μg/mL)	N = 87	N = 75
T1 (< 0.47)	29	16	1.00 (reference)
T2 (≥ 0.47 < 1.28)	29	12	0.71 (0.27–1.84)	0.479
T3 (≥ 1.28)	29	47	2.71 (1.22–6.04)	0.015
			P for trend = 0.002
TMA (μg/mL)	N = 85	N = 75
T1 (< 1.00)	28	14	1.00 (reference)
T2 (≥ 1.00 < 3.00)	28	24	1.50 (0.62–3.60)	0.369
T3 (≥ 3.00)	29	37	2.14 (0.92–4.98)	0.078
			P for trend =0.060

^†OR, 95% CI, and P values were obtained using multivariate logistic regression analysis adjusted for the effects of age and allergic history
^‡Concentration of specific IgGs were divided into three groups (T1–T3) depending on the levels of chemical-specific IgGs detected in controls

ISSN: 1347-4715