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Ann Occup Environ Med. 2014 Nov 4;26(1):50. doi: 10.1186/s40557-014-0050-z. eCollection 2014.

Serum prostate-specific antigen levels and type of work in tire manufacturing workers.

Author information

1
Department of Occupational and Environmental Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea.
2
Department of Occupational and Environmental Medicine, Mokpo Christian Hospital, Mokpo, Korea.

Abstract

OBJECTIVES:

This study measures serum prostate-specific antigen (PSA) levels in tire-manufacturing workers, and attempts to find occupational or non-occupational factors that related to their PSA levels.

METHODS:

A total of 1,958 healthy male workers (1,699 were production workers and 259 were office workers) took PSA measurement for analysis.

RESULTS:

After adjusting for age, body mass index, hypertension, regular exercise, alcohol drinking and smoking, which were significantly related to serum PSA levels or known related factors of serum PSA levels, the geometric mean PSA levels were significantly high in the office workers (p = 0.017), the older age group (p < 0.001), the group with hypertension (p = 0.046) and the group of individuals that do not exercise regularly (p = 0.015) and the office workers were more likely to have a serum PSA level of ≥4.0 (OR 7.73, 95% CI: 2.78-21.46) or 2.5 ng/mL (OR 2.74, 95% CI: 1.49-5.08). After stratifying by age and adjusting aforementioned covariates, office workers 50 years of age and older had the significantly higher geometric mean PSA levels (p = 0.017) and were more likely to have a serum PSA level of ≥4.0 ng/mL (OR 12.90, 95% CI: 3.65-45.64) or 2.5 ng/mL (OR 3.90, 95% CI: 1.64-9.25) than production workers 50 years of age and older.

CONCLUSIONS:

This study showed that serum PSA levels were significantly higher among the group with hypertension or the group of individuals that did not exercise regularly or group of office workers who were considered to have lesser physical activities.

KEYWORDS:

Occupations; Physical activity; Prostate-specific antigen; Sedentary lifestyle

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