China ; epidemiology ; Hearing Loss, Sudden ; diagnosis ; epidemiology ; Humans

Deafness ; Diabetes Complications ; diagnosis ; epidemiology ; Diabetes Mellitus ; epidemiology ; Hearing Loss ; diagnosis ; etiology ; Humans

OBJECTIVE: To identify the newborns who should receive hearing evaluation by hearing screening in high risk newborns; to find and confirm the high risk factors of hearing disorders in high risk newborns. METHOD: The first screening was performed by DPOAE. Newborns did not passed the first screening undertook second screening using DPOAE + ABR. and newborns did not passed the second screening received hearing evaluation. High risk factors of hearing loss were found by Logistic regression analysis. RESULT: Three hundred and twenty-seven cases were screened. The positive ratio in first screening was 37.0%. The positive ratio in second screening was 11.0%. Ten cases were diagnosed as hearing loss and the incidence of hearing loss was 3.39%. High risk factors of hearing loss were asphyxiation, very low born weight (<1,500 g) and head and neck abnormality. CONCLUSION (1) DPOAE combined with ABR is credible and feasible in hearing screening of high risk newborns. (2) High risk factors of hearing loss were asphyxiation, very low born weight (<1,500 g) and head and neck abnormality in this study.
Female ; Hearing Disorders ; diagnosis ; epidemiology ; prevention & control ; Hearing Loss ; diagnosis ; epidemiology ; prevention & control ; Hearing Tests ; Humans ; Incidence ; Infant, Newborn ; Male ; Neonatal Screening ; Risk Factors

Objective: To understand the current situation of high-frequency hearing loss of workers exposed to occupational noise in Hubei Province and its multi-level influencing factors. Methods: In June 2021, the basic information, occupational history, physical examination results and other relevant information in the "Occupational Health Examinations Case Cards" for noise workers in Hubei Province in 2020 were extracted from the subsystem of the "China Disease Prevention and Control Information System". Multilevel level of logistic model was used to analyze the related factors of high-frequency hearing loss of noise-exposed workers. Results: In 2020, the incidence rate of occupational high-frequency hearing loss in Hubei Province was 8.25% (6450/78152), and the incidence rate in various regions of the province ranged from 1.13% to 19.87%. At the individual level, male, ≥ 30 years of age, 6-10 years of service, small and micro enterprises, as well as construction, mining, manufacturing, transportation and rental services were the risk factors for high-frequency hearing loss (P<0.05). The risk of high-frequency hearing loss among workers in foreign-funded enterprises was significantly lower than that of workers in state-owned/collective enterprises (P<0.05). At the regional level, the younger the age of the employees, the lower the risk of high-frequency hearing loss (P<0.05). There was no significant correlation between the regional economic level and the risk of high-frequency hearing loss (P>0.05) . Conclusion: The incidence rate of occupational high-frequency hearing loss in Hubei Province is low in 2020, but the incidence rate varies greatly in different regions of the province, mainly due to differences in employment age, while the development of regional economic level has not reduced the risk of occupational high-frequency hearing loss.
Male ; Humans ; Child ; Hearing Loss, High-Frequency ; Hearing Loss, Noise-Induced/diagnosis* ; Occupational Diseases/epidemiology* ; Occupational Exposure/adverse effects* ; Noise, Occupational/adverse effects*

OBJECTIVE: To investigate the feasibility of universal newborn hearing screening in countryside in order to provide reliable evidence in launching this program all over the countryside of China. METHOD: Subjects were 12,638 infants who were born in 9 counties from Jan 2004 to Dec 2005. TEOAE was used for the fast hearing screening. Infants were screened on the 2-7 days after the birth. The re-screening was conducted in 4-6 weeks if failed in the initial screening, and follow-up were provided continually if they also failed in the re-screening. RESULT: Ten thousand eight hundred and forty-five of 12,638 (85.8%) were screened including 9,963 (91.9%) normal newborns and 882 (8.1%) newborns with high-risk. Seven thousand four hundred and fifty (68.7%) newborns passed the initial screening, and 3,395 (31.3%) people failed. One thousand seven hundred and ninety-three (14.2%) infants were refused to be screened. Only 2,536 (74.7%) were re-screened on time, and 859 (25.3%) did not receive re-screening. One hundred and twenty were failed in the re-screening or first screening, and 79 (65.8%) of them received diagnostic assessment. Among the infants received diagnostic assessment, 6 (7.6%) cases were found to have profound hearing loss in both ears, 9 (11.4%) cases were found to be severe hearing loss (7 in both ears and 2 in single ear), 11 (13.9%) cases were found to be moderate hearing loss (5 in both ear and 6 in single ear), 26 (32.9%) were found to have slight hearing loss (11 in both ear and 15 in single ears), and 27 (34.2%) were normal. Fifty-two infants were diagnosed as hearing loss with a prevalence of congenital hearing loss (in binaural and monaural) of 0.5% (52/10845) and a prevalence of bilateral hearing loss of 0.3% (29/10845). A prevalence of congenital hearing loss was 0.2% (22/9,963) in well infants and 3.4% (30/882) in high risk infants. Among the 13 cases of children with severe and profound hearing loss in both ears children, 8 (61.5%) cases were fitted with hearing aids and 1 (7.7%) case was implanted with cochlear implants. CONCLUSION It is necessary and feasible to conduct hearing screening program in the rural area. However, the suitable model to perform the program in the countryside needs to be set up as soon as possible in order to get more poor infants to participate into the hearing screening program for free and increase the screening rate.
China ; epidemiology ; Feasibility Studies ; Hearing Loss ; diagnosis ; epidemiology ; Hearing Tests ; Humans ; Infant, Newborn ; Neonatal Screening ; Otoacoustic Emissions, Spontaneous ; Prevalence ; Rural Population

OBJECTIVEIn order to provide the evidence for taking the measures to prevent noise hazards, the condition sand influence factors of occupational noise deafness diagnosis in Jiangsu province from 2006 to 2013 were analyzed.

METHODSAccording to the 13 administrating personnel report of noise deafness diagnosed occupational disease prevention and control institutions in Jiangsu province from 2006 to 2013, the diagnosis of occupational noise deafness were retrospectively analyzed.

RESULTSBy the end of December 31 2013, 297 cases of noise deafness were diagnosis occupational disease within this province. Occupational noise deafness has localized on the machinery industry, textile and light industry. Regional distribution mainly concentrated in Suzhou, Yangzhou, Nanjing, Nantong. 83.16% in 297 cases were mild noise deafness.

CONCLUSIONThe distribution of occupational noise deafness cases in Jiangsu province has specific charateristics. It is not balanced in different regions, and most of them are the mild noise deafness, male, length of service in more than 15 years, the onset age is 40~60 years old, According to characteristics of the occupational noise deafness cases in Jiangsu province, Specific occupational health service will help to reduce the occurrence of occupational noise deafness, and protect the worker's health effectively.

Adult ; Age of Onset ; China ; epidemiology ; Hearing Loss, Noise-Induced ; diagnosis ; epidemiology ; Humans ; Industry ; Male ; Middle Aged ; Noise, Occupational ; adverse effects ; Occupational Diseases ; diagnosis ; epidemiology ; Occupational Health Services

INTRODUCTIONInfants with Down syndrome (DS) are at higher risk of hearing loss (HL). Normal hearing at one year of age plays an important part in language development. An audit was conducted to determine the impact of the newborn hearing screening program on the incidence, type and timing of diagnosis of HL during first year of life.

MATERIALS AND METHODSInfants with DS were scheduled for Universal Newborn Hearing Screening (UNHS) within 4 weeks of life. If they passed, they had a high-risk screen at 3 to 6 months. They were referred to the otolaryngology department if they did not pass the UNHS or the high-risk screen. Information was obtained from the computerised data tracking system and case notes. Infants born from April 2002 to January 2005 and referred to the DS clinic of our hospital were analysed.

RESULTSThirty-seven (82.2%) of 45 infants underwent UNHS, of which 12 (32.4%) infants did not pass. Of remaining 33 infants, 27 had high-risk screen done of which 14 (51.8%) did not pass. Twenty-eight infants were referred to the ear, nose, throat (ENT) clinic: 12 from UNHS, 14 from high-risk screens and 2 from the DS clinic. Eleven (39.2%) defaulted follow-up. Fourteen (82.3%) of 17 infants who attended the ENT Clinic had HL. Twelve (85.7%) were conductive, and 2 (14.2%) mixed. Nine (64.2%) had mild-moderate HL and 3 (21%) had severe HL. The mean age of diagnosis was 6.6 ± 3.3 months. All were treated medically, plus surgically if indicated. By 12 months of age, the hearing had normalised in 4 (28.6%) infants and remained the same in 3 (21.4%). Five (35.7%) defaulted follow-up. Thirty-five out of 45 (77.8%) underwent complete hearing screen in the first year of life (UNHS & High-risk screen). Six out of 45 (13.3%) had incomplete screening. Fourteen out of 41 (34.1%) had HL of varying degrees. Four out of 45 (8.8%) did not have any audiological assessment in first year of life.

CONCLUSIONThe incidence of HL in the first year of life was high (34.1%). Eighty-five percent were conductive with 64.2% in mild-moderate range. One third of infants hearing normalized after treatment, one third remained unaltered and one third of infants did not attend follow-up. An aggressive approach involving early screening after birth and continued surveillance and early referral to appropriate agencies are essential for establishing timely diagnosis and treatment. Measures to reduce the high default rate during long-term follow-up are needed. Parent education and integrated multidisciplinary follow-up clinic may be useful.

Down Syndrome ; complications ; Early Diagnosis ; Female ; Hearing Loss ; diagnosis ; epidemiology ; etiology ; physiopathology ; Hearing Tests ; Humans ; Infant ; Male ; Mass Screening ; Medical Audit ; Population Surveillance ; methods ; Severity of Illness Index ; Singapore ; epidemiology ; Trisomy ; genetics

OBJECTIVETo study the audiological characteristics of newborns and infants who failed hearing screening.

METHODSOne hundred and six infants failed hearing screening received follow-up study with routine audiological evaluations (auditory brainstem response, distortion product otoacoustic emission, tympanometry and visual reinforcement audiometry).

RESULTSSixty-five infants (61.3%) of this group were normal hearing subjects and 39(36. 8% ) of the infants had hearing loss. Two cases (1.9%) received follow-up by phone. Fifteen cases (14.2%) with conductive hearing loss and 24 cases (22.6%) with sensorineural hearing loss. Thirteen (12.3%), 14 (13.2%), 6 (5.7%), and 6 (5.7%) cases were found to be mild, moderate, severe and profound hearing loss respectively. Diagnosis of hearing loss in the thirty-nine infants conducted a prevalence of 0.264% (39/14 785) of congenital hearing loss (both binaural and monaural). The hearing level of those cases with severe and profound hearing loss basically did not change, but that of cases with mild and moderate hearing loss changed.

CONCLUSIONSEarly identification and intervention of infants with severe and profound hearing loss by 6 months of age were successful. Infants with mild and moderate hearing loss should be followed up to six or eight months and received routine audiologic evaluations.

Audiometry, Evoked Response ; China ; Evoked Potentials, Auditory, Brain Stem ; Female ; Follow-Up Studies ; Hearing Loss ; diagnosis ; epidemiology ; Humans ; Infant ; Infant, Newborn ; Male ; Neonatal Screening ; Prevalence

INTRODUCTIONNeurodevelopmental outcome of borderline viability neonates have lagged behind improvement in survival figures. Accurate figures based on local outcome allow us to better counsel parents and to prognosticate with greater accuracy on both short- and longterm outcomes.

MATERIALS AND METHODSA retrospective cohort study of 101 consecutively born neonates, born from 21 to 26 weeks gestation over an 11-year period from 1 January 1994 to 31 December 2005 was conducted. Long-term outcomes were assessed at 2, 5 and 8 years of age in terms of mental developmental index (MDI) or intelligence quotient (IQ) scores, hearing and visual impairments, handicaps and impairments, school placement and interventions required.

RESULTSSurvival rates were 20.0%, 60.9%, 70.4% and 73.2% for neonates born at 21 to 23, 24, 25 and 26 weeks gestation respectively. Factors that predicted increased mortality included higher alveolar-arterial oxygen difference (AaDO2) with odds ratio (OR) 1.005 and lower birth weight OR 0.993. Rates of severe retinopathy of prematurity (ROP) (stage 3 or worse) were 100%, 57.1%, 42.1% and 26.7% for 21 to 23, 24, 25 and 26 weeks gestation respectively. Rates of bronchopulmonary dysplasia (BPD) were 100.0%, 57.1%, 63.2% and 60.0% respectively. Rates of severe intraventricular haemorrhage (IVH) were 0%, 7.1%, 5.3% and 10.0% respectively. Moderate to severe disability rates at 2 years old were 100%, 44.4%, 33.3% and 30.4% respectively. At 5 years old, moderate to severe disability rates were 16.7%, 22.2% and 14.3% respectively for those born at 24, 25 and 26 weeks gestation. Interpretation at 8 years was limited by small numbers.

CONCLUSIONOur results indicated that local figures for mortality and morbidity remained high at the limits of viability, although they were comparable to outcomes for large scale studies in advanced countries.

Cerebral Palsy ; diagnosis ; epidemiology ; therapy ; Child ; Child, Preschool ; Developmental Disabilities ; diagnosis ; epidemiology ; therapy ; Epilepsy ; diagnosis ; epidemiology ; therapy ; Female ; Follow-Up Studies ; Hearing Loss ; diagnosis ; epidemiology ; therapy ; Humans ; Infant, Extremely Premature ; Infant, Newborn ; Infant, Premature, Diseases ; diagnosis ; epidemiology ; mortality ; therapy ; Infant, Very Low Birth Weight ; Intellectual Disability ; diagnosis ; epidemiology ; therapy ; Logistic Models ; Male ; Outcome Assessment (Health Care) ; Psychological Tests ; Retrospective Studies ; Singapore ; epidemiology ; Vision Disorders ; diagnosis ; epidemiology ; therapy

We aimed to estimate the effects of various risk factors on hearing level in Korean adults, using data from the Korea National Health and Nutrition Examination Survey. We examined data from 13,369 participants collected between 2009 and 2011. Average hearing thresholds at low (0.5, 1, and 2 kHz) and high frequencies (3, 4, and 6 kHz), were investigated in accordance with various known risk factors via multiple regression analysis featuring complex sampling. We additionally evaluated data from 4,810 participants who completed a questionnaire concerned with different types of noise exposure. Low body mass index, absence of hyperlipidemia, history of diabetes mellitus, low incomes, low educational status, and smoking were associated with elevated low frequency hearing thresholds. In addition, male sex, low body mass index, absence of hyperlipidemia, low income, low educational status, smoking, and heavy alcohol consumption were associated with elevated high frequency hearing thresholds. Participants with a history of earphone use in noisy circumstances demonstrated hearing thresholds which were 1.024 dB (95% CI: 0.176 to 1.871; P = 0.018) higher, at low-frequencies, compared to participants without a history of earphone use. Our study suggests that low BMI, absence of hyperlipidemia, low household income, and low educational status are related with hearing loss in Korean adults. Male sex, smoking, and heavy alcohol use are related with high frequency hearing loss. A history of earphone use in noisy circumstances is also related with hearing loss.
Adult ; Alcohol Drinking/*epidemiology ; Causality ; Comorbidity ; Diabetes Mellitus ; Disease Susceptibility ; Educational Status ; Employment/statistics & numerical data ; Female ; Hearing Loss/*diagnosis/*epidemiology ; Hearing Tests/statistics & numerical data ; Humans ; Income/statistics & numerical data ; Male ; *Noise ; Occupational Exposure/*statistics & numerical data ; Republic of Korea/epidemiology ; Risk Factors ; Sex Distribution ; Smoking/*epidemiology ; Surveys and Questionnaires