|
KMID : 0371020020350030205
|
|
Journal of Preventive Medicine and Public Health
2002 Volume.35 No. 3 p.205 ~ p.213
|
|
|
Cohort Study for the Effect of Chronic Nosic Exposure on Blood Pressure among Male Workers
|
|
Lee Ji-Ho
Cha Tae-Joon
Kim Jang-Rak
Kang Wee-Chang
Yang Seung-Rim
Lee Choong-Ryeol
Yoo Cheol-In
|
|
|
Abstract
|
|
|
Objectives: Whether exposure to chronic noise induces an increase in blood pressure, or the development of hypertension, has not been established. A cohort study was performed to identify the effects of chronic noise exposure on blood pressure.
Method: 530 males working at a metal manufacturing factory in Busan, Korea were enrolled for the study. They were monitored for 9 consecutive years, from 1991 to 1999, with an annual health check-up. The subjects were divided into 4 groups, which
were determines by noise level categories(NLC) according to noise intensity ; NLC-I: office workers, exposed to noise a level below 60dB(A); NLC-II: field technical supporters or supervisors, frequently exposed to workplace noise, wearing no hearing protection device; NLC-III: workers, exposed to workplace noise below 85 dB(A), wearing ear plugs or muffs; NLC-IV: workers, exposed to workplace noise over 85 dB(A), wearing both ear plugs and muffs.
Results: After controlling possible confoundens, such as baseline age, smoking, alcohol intake, exercise, family history of hypertension, systolic(SBP) or diastolic blood pressure(DBP) and changes in BMI (body mass index), the pooled mean
for the systolic blood pressures, over the duration of the study period, were 3.8㎜Hg, 2.0㎜Hg and 1.7㎜Hg higher in NLC-IV, NLC-III NLC-II groups, respectively, than in the NLC-I group. There were no significant differences in the diastolic blood pressures
between the groups.
Conclusions: This study suggests that chronic noise exposure increases systolic blood pressure independently, among male workers.
|
|
|
KEYWORD
|
|
|
Noise, Blood pressure, Cohort studies, Workers
|
|
|
FullTexts / Linksout information
|
|
 
|
|
|
Listed journal information
|
|
  
|
|