Synergistic Effects of Environmental Noise and Aging on Hearing Loss: A Comparative Analysis of Elderly Residents Near Powerloom Industries
S Chitra Thara, K Vidhya Lekshmi, N VenkateswaramurthyAbstract
Context:
Noise-induced hearing loss (NIHL) is a preventable yet understudied issue in nonoccupational settings, particularly among elderly populations near industrial areas, where chronic noise may worsen age-related hearing decline.
Aim:
This study aimed to evaluate the effects of powerloom noise on hearing health in elderly residents near industrial zones compared to those in quieter areas and to explore its interaction with ageing and health factors.
Settings and Design:
This cross-sectional, comparative study was conducted in a residential areas near powerloom industries and in quieter control areas within the same region.
Methods and Material:
A study was conducted from May to July 2024 with 436 participants aged above 60 years (218 near powerlooms, 218 in control areas), selected via stratified random sampling. Noise levels were measured using calibrated sound meters at residences, and hearing was assessed with a validated mobile application. Structured interviews collected demographic, health, and lifestyle data.
Statistical Analysis Used:
Statistical analysis includes regression,
Results:
Elderly residents near powerlooms had significantly worse hearing than the control group, with severity increasing with exposure duration. Ageing-related decline was steeper, worsened by diabetes and smoking. Noise above safe limits led to higher moderate-to-severe hearing loss. Statistical models confirmed noise as a key factor, highlighting the vulnerability of elderly populations and the need for protective measures.
Conclusions:
Chronic powerloom noise worsens hearing loss in elderly residents, amplifying age-related decline and health risks.