Permanent Hearing Loss among Professional Spice Grinders in an Urban Community in Southwest Nigeria

Olusanya, Bolajoko O.; Bamigboye, Babatunde A; Somefun, Abayomi O.

doi:10.1007/s11524-011-9634-x

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…[14] The noise levels within such work places and the subsequent degree of occupational hearing loss of market mill workers remains unknown. Evaluation of noise levels within market mill workplaces, together with the hearing assessment of small-scale mill workers, will help to shed light on the health risk of these environments.…”

Section: Introductionmentioning

confidence: 99%

Occupational hearing loss of market mill workers in the city of Accra, Ghana

et al. 2014

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Noise induced hearing loss (NIHL) is an irreversible sensorineural hearing loss associated with exposure to high levels of excessive noise. Prevention measures are not well established in developing countries. This comparative cross sectional study aims to determine the prevalence of hearing loss in both a group of high risk workers and a control group and to assess their knowledge of the effects of noise on hearing health. A total of 101 market mill workers and 103 controls employed within markets in the city of Accra, Ghana, were evaluated using a structured questionnaire and pure tone audiometry. The questionnaire assessed factors including self-reported hearing loss, tinnitus, knowledge on the effects of noise on hearing health and the use of hearing protective devices. Pure tone audiometric testing was conducted for both mill workers and controls. Noise levels at the work premises of the mill workers and controls were measured. Symptoms of hearing loss were reported by 24 (23.76%) and 8 (7.7%) mill workers and controls respectively. Fifty-five (54.5%) and fifty-four (52.37%) mill workers and controls exhibited knowledge of the effects of noise on hearing health. Five (5.0%) mill workers used hearing protective devices. There was significant sensorineural hearing loss and the presence of a 4 kHz audiometric notch among mill workers when compared with controls for the mean thresholds of 2 kHz, 3 kHz and 4 kHz (P = 0. 001). The prevalence of hearing loss in the better hearing ears of the mill workers and controls was 24.8% and 4.8% respectively (P < 0.5). The prevalence of hearing loss, which may be characteristic of NIHL in the better hearing ears of the mill workers and controls was 24.8% and 4.8% respectively. The majority of mill workers did not use hearing protection.

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Section: Introductionmentioning

confidence: 99%

Occupational hearing loss of market mill workers in the city of Accra, Ghana

et al. 2014

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“…Studies carried out in other industrial sectors found NIHL in 100% of Nigerian traders [25], 96% ginning factory Maharashtra, India [17], 84% steel factory, Indonesia [26], 62.5% spice grinders Nigeria [27], 57% quarry workers Malaysia [28] 56.8% LPG cylinder infusion unit [29], 44% of electro production, Taiwan [30], 43.5% printing industry Nigeria [31], 38.5% oil company Shiraz, Iran [7], 38% two plants in Saudi Arabia [32], 34.90% heavy engineering Kolkata, India [33]. The prevalence of noise related hearing loss in the above mentioned studies is much higher than our findings.…”

Section: Discussionmentioning

confidence: 99%

Untitled

2016

Madridge J Otorhinolaryngol

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Introduction: Excessive noise is an important health hazard at the present time. It can lead to auditory and extra-auditory effects which affect the welfare of individuals and groups exposed. We carried out this study to understand the prevalance of Noise Induced Hearing-Loss (NIHL) in workers of an automobile manufacturing unit in Karachi, Pakistan. Method:The study consisted of the following: 1. Determination of noise levels during different stages of work. 2. A questionnaire regarding subjective hearing loss of the workers; as well as their knowledge, attitude and behavior regarding excessive noise. 3. Tympanometry and Audiometry. 4. Health and safety survey.Two hundred and seventy two workers participated in the study and out of them 206 underwent audiometric evaluation. Results:The basic demographic, professional data and smoking habits of 272 workers participating in the study is as follows: 34.92% of workers belong to 41-50 years of age, 58.8% belong to Mohajir ethnic group, 19.1% were smoker/ex-smokers, 62% earned less than Rs 10,000/month, 87.5% received education for 0-10 years and 40% had work experience of 0-10 years. The majority of the workers were exposed to noise level higher than the safe limit of 85 dBA.According to the WHO criteria [1] 61% of the workers were suffering from hearing loss. Those who were suffering from hearing loss were further evaluated according to Cole's criteria for NIHL [2]. Of the total number of workers who underwent audiometry 25% fulfilled the Coles' criteria [2] for NIHL. The age, duration of exposure and severity of exposure were important determinants of NIHL. The workers had insufficient knowledge regarding prevention of NIHL. The personal protective equipments were used inadequately. There was no clinical follow up or monitoring of hearing among the workers. Conclusion:There is an urgent need for the government to take practical steps for making a policy and implement it so that occupational hearing loss can be prevented.

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“…1 Exposure to occupational noise for a prolonged period of time has been shown to be potentially hazardous. 2,3 Noise becomes hazardous when the sound exceeds 85 dB over a typical eight hour work day. 4 Noise could be present both at home and at work.…”

Section: Introductionmentioning

confidence: 99%

Effects of occupational noise on quality of life

Otoghile

Onakoya

Otoghile

2018

Int J Otorhinolaryngol Head Neck Surg

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Background: Noise is an unwanted sound which could possibly adversely impact an individual’s quality of life. The issue of occupational noise is of public health importance. Excessive noise can potentially affect the quality of life. The objective of the study was to evaluate the effects of occupational noise exposure on quality of life.Methods: This was a prospective community based study involving sawmill workers in Ile-Ife. Library and administrative staff of Obafemi Awolowo University, Ile-Ife were used as control. The quality of life of all participants was evaluated with World Health Organization Quality of Life bref questionnaire and a designed noise exposure evaluation questionnaire.Results: A total of 420 subjects were recruited for the study and similar number for control. There was a negative correlation between occupational noise and the physical and psychological domains of quality of life.Conclusions: Occupational noise level is associated with a reduction in the overall, physical and psychological components of the quality of life.

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Permanent Hearing Loss among Professional Spice Grinders in an Urban Community in Southwest Nigeria

Cited by 7 publications

References 15 publications

Occupational hearing loss of market mill workers in the city of Accra, Ghana

Occupational hearing loss of market mill workers in the city of Accra, Ghana

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Effects of occupational noise on quality of life

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