Objective: Knowledge regarding hearing acuity in the nonagenarian age group is sparse. In this study we aimed to advance our understanding of hearing loss in the 10 decade of life.
Design: A cross-sectional study in which standardised hearing measurements were performed during home visits, which included care home facilities and nursing homes to maximise participation.
Objective: Automated pure-tone audiometry is frequently used in teleaudiology and hearing screening. Given the high prevalence of age-related hearing loss, older adults are an important target population. This study aimed to investigate the accuracy of automated audiometry in older adults, and to examine the influence of test frequency, age, sex, hearing and cognitive status.
View Article and Find Full Text PDFPurpose: This study aimed to identify the prevalence of conductive/mixed and sensorineural hearing loss, with an attempt to differentiate between sensory and neural components in 85-year-olds.
Method: A comprehensive auditory test protocol, including pure-tone audiometry, speech audiometry, auditory brainstem response (ABR), and distortion product otoacoustic emission (DPOAE), was used to identify different types of hearing loss in 85-year-olds. This study comprised a subsample ( = 125) selected from an unscreened cohort of 85-year-olds born in 1930, within the Gothenburg H70 Birth Cohort Studies in Sweden.
Introduction: Population-based research has consistently shown that people with hearing loss are at greater risk of cognitive impairment. We aimed to explore the cross-sectional association of both subjective and objective hearing measures with global and domain-specific cognitive function. We also examined the influence of hearing aid use on the relationship.
View Article and Find Full Text PDFObjective: The purpose of this study was to determine the current prevalence of childhood hearing impairment (HI) in Sweden and to compare our data with previous studies from Sweden and other high-income countries.
Design: This was a cross-sectional study based on a register of children diagnosed with HI. Our results were compared with prevalence data from 18 studies from Sweden and other high-income countries, covering data collected from 1964 to the present.
Background/objective: It has been suggested that central auditory processing dysfunction might precede the development of cognitive decline and Alzheimer's disease (AD). The Dichotic Digits Test (DDT) has been proposed as a test of central auditory function. Our objective was to evaluate the predictive capacity of the DDT in conversion from mild cognitive impairment (MCI) to dementia.
View Article and Find Full Text PDFObjective: Many individuals >80 years have difficulties with speech communication due to age-related hearing loss and would benefit from aural rehabilitation. As the proportion of older people increases, there is a need to investigate the prevalence of "disabling hearing loss" to calculate future rehabilitation need. The aims are to determine the prevalence of hearing loss in an unscreened birth cohort of 85-year olds, and to identify differences in audiometric results between two birth cohorts, born 28-29 years apart.
View Article and Find Full Text PDFObjective: To investigate the sensitivity and specificity in an automatic computer-controlled audiometric set-up, used for screening purposes.
Design: Comparison between standardized audiometry and automated audiometry performed in the same participants.
Study Sample: In total, 100 participants (51 females and 49 males) were recruited to take part of this study the same day they visited the hearing clinic for clinical audiometry.
To describe the auditory function in early old age in detail based on both psychoacoustic and physiological measures, and to investigate the prevalence of specific audiological and otological pathologies. An unscreened subsample from a population-based geriatric investigation was examined with otoscopy; tympanometry; pure-tone audiometry; word-recognition-in-noise test; distortion-product otoacoustic emissions; and auditory-evoked brainstem responses. Audiometric subtypes and diagnoses were established based on set criteria.
View Article and Find Full Text PDFAs the proportion of older people increases, it is important to investigate hearing acuity in older individuals and to calculate hearing decline for older ages, using standardised test protocols. The main aim of this study was to determine pure-tone hearing thresholds in an unscreened birth cohort of 85-year-olds born in 1930, living in an industrial Swedish city. A further aim was to describe hearing decline in men and women from 75 to 85 years of age with the aid of longitudinal data.
View Article and Find Full Text PDFThe goal of this study was to estimate noise exposure and hearing impairments in Swedish military pilots. It also aimed to analyze possible relations between noise exposure and hearing impairments. The study group was an open cohort of 337 male pilots.
View Article and Find Full Text PDFObjective: To study if the antioxidant (AO) N-Acetyl-L-cysteine (NAC) reduces the risk of hearing loss after acoustic accidents in humans.
Design: A retrospective, observational study.
Study Sample: Personnel of the Swedish Armed Forces (SAF) exposed to military acoustic accidents during a 5 year period.
Background/aim: Central auditory processing disorder (CAPD) might precede the onset of Alzheimer's disease (AD). A method of evaluating CAPD is the dichotic digits test (DDT). The aim was to address this in a longitudinal setting.
View Article and Find Full Text PDFNoise is a common exposure in the occupational work environment. Earlier studies of occupational noise and pregnancy outcome are few and show mixed results. To investigate if objectively assessed exposure to occupational noise during pregnancy is associated with reduced intrauterine growth and/or preterm birth a nationwide cohort study of 857,010 single births was initiated.
View Article and Find Full Text PDFObjective: the world population is ageing rapidly. In light of these demographic changes, it is of interest to generate current data regarding the prevalence and characteristics of age-related hearing loss. The purpose of this study was to investigate hearing acuity and the prevalence of hearing loss in a contemporary age-homogenous cohort of old adults, and to assess secular trends in hearing function during the last half-century (1971-2014).
View Article and Find Full Text PDFObjective: To analyze time trends in prevalence of hearing impairment in almost complete birth cohorts of 18-year old Swedish men from 1970s up to 2010.
Study Groups: Before 1999, all 18-year old men, in Sweden, were called for a compulsory conscription examination. In 1971-1999, the participation rate in audiometry was 73-95%.
Aim: To investigate in this cross-sectional study among Swedish hunters if tobacco use modifies the previously observed association, expressed as prevalence ratio (PR), between unprotected exposure to impulse noise from hunting rifle caliber (HRC) weapons and high-frequency hearing impairment (HFHI).
Settings And Design: A nationwide cross-sectional epidemiologic study was conducted among Swedish sport hunters in 2012.
Materials And Methods: The study was Internet-based and consisted of a questionnaire and an Internet-based audiometry test.
Background: Cortical auditory event-related potentials (ERPs) were studied in order to measure mismatch negativity (MMN). Three groups of subjects were studied: patients with Alzheimer's disease (AD, n = 32), mild cognitive impairment (MCI, n = 44), and subjective memory complaints without cognitive decline (SMC, n = 27). A bottom up strategy was applied, and the right and left ears were stimulated monaurally.
View Article and Find Full Text PDFBackground: The prevalence of sudden sensorineural hearing loss in children (CSSNHL) is consistently increasing. However, the pathology and prognosis of CSSNHL are still poorly understood. This retrospective study evaluated clinical characteristics and possible associated factors of CSSNHL.
View Article and Find Full Text PDFThis study was conducted to compare the pattern of age-related hearing decline in individuals with and without self-reported previous occupational noise exposure. This was a prospective, population-based, longitudinal study of individuals aged 70-75 years, from an epidemiological investigation, comprising three age cohorts. In total there were 1013 subjects (432 men and 581 women).
View Article and Find Full Text PDFObjective: A revised hearing conservation program (HCP) was implemented in the Swedish Armed Forces in 2002. The aim of this study was to evaluate the incidence of significant threshold shifts (STS) in male conscripts heavily exposed to noise after the implementation of the new HCP, comparing the results to those of an earlier study from 1999/2000.
Design: The study was prospective and longitudinal, covering the period from reporting to military service to discharge.
Background: Many women of childbearing age are occupationally active, which leads to a large number of pregnancies potentially exposed to occupational exposures. Occupational noise has been identified as a risk factor for hearing impairment in adults. However, very few studies have assessed the effect of occupational noise on the fetus.
View Article and Find Full Text PDFThe aim of this cross-sectional study among Swedish hunters was to examine the association between shooting history and presence of high-frequency hearing impairment (HFHI). All hunters registered with an e-mail address in the membership roster of the Swedish Hunters' Association were invited via e-mail to a secure website with a questionnaire and an Internet-based audiometry test. Associations, expressed as prevalence ratio (PR), were multivariately modelled using Poisson regression.
View Article and Find Full Text PDFConclusions: Sudden Sensorineural Hearing Loss (SSHL) was commonly seen in middle aged people. Tinnitus was reported by 87.2% of the patients, and dizziness or vertigo were reported by 48.
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