A Comparative Study of the Prevalence and Risk Factors of Lower Back Pain among Aircraft Technicians in Ethiopian Airlines

Lower back pain (LBP) is a global concern among workers in various occupational settings. The purpose of this cross-sectional study was to determine the prevalence of LBP and its risk factors among aircraft technicians (ACTs) in Ethiopian Airlines. A self-administered questionnaire was used to obtain data from 294 ACTs. The prevalence of LBP among ACTs was 47.1 during the past six months. Duration of employment was signifi cantly associated with experiencing LBP as ACTs with 7 - 9 years working experience were almost eight times more likely to experience LBP that those with 1- 3 years of experience (OR = 7.86; 95 CI 1.59-52.55 ). Significant associations were observed between the prevalence of LBP and pulling and pushing heavy loads (OR = 3.17; 95 CI 1.49-6.74); lifting heavy objects (OR = 1.90; 95 CI 1.01-3.60); and carrying heavy loads (OR = 2.02; 95 CI 1.15-3.57). Bending (OR = 2.13; 95 CI 1.30-3.49); lifting hard to hold loads (OR = 2.78; 95 CI 1.72-4.49); and working with twisted trunks (OR = 2.15; 95 CI 1.34-3.43) were also signifi cantly associated with LBP. Relevant occupational health and safety interventions should be designed and implemented to reduce the prevalence of LBP in these ACTs; taking into account the nature of the work conducted

A Preliminary Study of the Effects of Aircraft Noise on Families who Reside in Close Proximity to an Airport

Background: The use of air transportation has grown in the last century; escalating the noise exposure of families residing in close proximity to airports. The audiological effects need to be assessed to determine the impact of this increase on children and young adults living near to airports in South Africa.Method: Hearing patterns for these individuals were compared to those residing 30 km away from the airport. Sixty people; between the ages of 12-30 years; were assessed. Participants completed a questionnaire and were subjected to a diagnostic audiological test battery and tested using diagnostic distortion product otoacoustic emissions (DPOAEs).Results: Participants residing in close proximity to the airport presented with a notch configuration in the high frequencies; as opposed to those who lived further away. DPOAEs indicated a change in hearing in the high frequencies between the test populations. The positive relationship between the pure tone results and the DPOAEs strengthens the claim that aircraft noise has an effect on the hearing patterns of individuals living near to airports. Participants also experienced annoyance resulting from such noise.Conclusion: The results highlight the need for investigation into the hearing of individuals who reside in close proximity to airports. Comprehensive studies will be informative and beneficial to the field of audiology in South Africa. The highlighted health and safety issues require in-depth study to formulate a stronger argument for monitoring the hearing of families who are exposed to aircraft noise