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Table 3 Neurological symptoms among 40 dental assistants with probable previous exposure to mercury during work, compared with 64 assistant nurses

From: Neurological symptoms among dental assistants: a cross-sectional study

Neurological symptom Dental assistants (%) Assistant nurses (%) OR (95%CI)*
Unintentionally dropping things 60 19 9.0 (2.5–32.3)
Felt weak in your arms and legs 78 55 3.0 (1.0–9.2)
Felt less in your arms and legs 60 38 2.1 (0.8–5.7)
Felt numbness or heaviness in your arms and legs 66 56 2.6 (0.9–7.8)
Felt tingling in your arms and legs 64 34 4.0 (1.3–12.0)
Had problems with balance 53 13 7.7 (2.2–27.1)
Noticed changes in sense of smell or taste 29 6 8.6 (1.7–43.2)
Noticed less sensation in your face 17 2 8.5 (0.9–85.6)
Had difficulty controlling hand movements 39 8 5.5 (1.2–20.5)
Felt slow in carrying out your daily activities 32 38 0.8 (0.3–2.6)
Felt shakiness in your hands 44 16 6.8 (1.9–24.6)
  1. *OR (95%CI) = Odds ratio with 95 percent confidence interval, calculated by logistic regression analyses, adjusting for age, education, alcohol consumption, smoking and personality traits (anxiety and general health).