Interaction of occupational manganese exposure and alcohol drinking aggravates the increase of liver enzyme concentrations from a cross-sectional study in China

Table 2 The detection rates of anomaly clinical signs in the MEWHC exposed to Mn dust during in the last two weeks

Signs	Number	Percent (%)
ENT
Vision	48	4.3
Hearing	23	2.1
Nasal	4	0.4
Oral cavity^a	284	25.5
Throat	6	0.5
Surgery dept
Superficial lymph node^b	207	18.6
Thyroid gland	8	0.7
Skin and mucosa	4	0.4
Nervous system
Muscle strength	46	4.1
Abnormal feeling of peripheral nerve	1	0.1
Increased tremor	1	0.1

^a Oral cavity signs included constant anodontia, deep caries, and periodontal abnormality.
^b Lymph node enlargement mainly occurred in the submandibular lymph nodes (96%), and the other occured in cervical lymph nodes and supra-clavicular lymph nodes.

ISSN: 1476-069X