xRead - Olfactory Disorders (September 2023)

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375

PATEL et al.

TABLE VII.7a (Continued) Study Year LOE

Study design Cross-sectional

Study groups

Clinical end point Psychomotor function scores Olfactory threshold White blood cell counts

Conclusions The olfactory

Lucchini et al 335

1997

4

35 male workers of a ferroalloy production plant exposed to manganese oxides Control group of nonexposed workers

threshold did not differ between the groups but was negatively associated with urine manganese suggesting that increased excretion is

related to increased olfactory perception

Changes in

leukocyte count may indicate an effect on the immunological system

Rydzewski et al 328

1998

4

Cross-sectional

73 workers exposed to cadmium in

Olfactometry was performed according to

Prevalence of hyposmia of

quantities exceeding maximum allowable concentration

26.0%, parosmia of 17.8%, and anosmia of 1.4% Correlation between olfaction impairment and cadmium concentration in blood, urine, and workplace air Correlation was found between blood/urine Significant decline inUPSIT R score in former lead workers No difference in OF Exposed workers had an elevated styrene ODT (induced adaptation) cadmium and OD OD in 45.2% of exposed workers and4.6%of controls

Elsberg and Levy’s blast-injection method, modified by Pruszewicz

Sulkowski et al 327

Blast-injection threshold

2000

4

Case-control

73 workers of

cadmium-nickel batteries plant

measurements (maximum and minimum)

43 controls

Schwartz et al 351

2000

4

Longitudinal

535 former lead

Neurocognitive tests UPSIT R

manufacturing workers

118 controls

Dalton

Threshold for PEA Odor identification Retronasal odor perception

2003

4

Cross-sectional

Workers exposed to styrene in plastic industry Controls

et al 338

(Continues)