BioMed Research International / 2016 / Article / Tab 1

Research Article

Use of Mercury in Dental Silver Amalgam: An Occupational and Environmental Assessment

Table 1

Sociodemographic characteristics of the dentists, dental assistants, and controls.

Characteristics Dentists ()Dental assistants ()Controls ()
%%%

Age (years)
 21–30 (group 1)123219551136
 31–40 (group 2)11301329827
 41–50 (group 3)822516620
 51–60 (group 4)61600517
Sex
 Male3389311002790
 Female41100310
Smoking
 Yes82218581137
 No297813421963
Working hours
 Less than 6 1438929
 6–821571652
 More than 825619
Years of experience
 Less than 5 719929
 5–1011301239
 More than 1019511032
Frequent fish consumption
 Yes12323101033
 No256828902067
Amalgam filling per week
 <516431136
 5–1017461548
 >10411516
Own amalgam filling
 Yes277319611447
 No102712391653
Number of fillings
 <21659632964
 2–511411158536
 >50021000

Fish consumption at least once a week.
Applicable to subjects with their own amalgam filling.

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