Prevalence of permanent childhood hearing impairment in the United Kingdom and implications for universal neonatal hearing screening: questionnaire based ascertainment study Commentary: Universal newborn hearing screening: implications for coordinating and developing services for deaf and hearing impaired children

Fortnum, Heather; Summerfield, A. Quentin; Marshall, David; Davis, Adrian; Bamford, John

doi:10.1136/bmj.323.7312.536

Cited by 435 publications

(275 citation statements)

References 23 publications

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“…Our results are in concordance with previous studies which have found that conductive hearing loss is more prevalent than sensorineural one among school children [8,18]. The prevalence of unilateral sensorineural hearing loss among school-children is reported to be 3%-5% [6,15].…”

Section: Discussionsupporting

confidence: 83%

“…A large study including more than 6000 children aged 6-19 years reported that 14.9% of them had some kind of hearing impairment [15], a study among 6581 grade 1 and grade 5 children in Australia found that the prevalence of slight/moderate bilateral sensorineural hearing loss was 0.88% [16] whereas a UK study suggested that 2.05% of children aged 9-16 years had permanent hearing impairment [17]. In developed countries, the prevalence of hearing impairments among primary school children ranged from 8.8% in Iran [18], 15% in Malasyia [8] but 2.4% in Zimbabwe [19].…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of Hearing Loss among First Grade School Children in Tirana,Albania – A Repeated Cross-Sectional Survey

Sallavaci¹

2014

Otolaryngology

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Background: Hearing Loss (HL), which affects disproportionally children in low income countries, is increasing worldwide. HL could be associated with a range of speech, language and cognitive problems in children. In Albania the information about this condition is largely outdated. In this context, the aim of this paper was to assess the prevalence of HL among first grade school children in Tirana, the capital city of Albania.

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Section: Discussionsupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Prevalence of Hearing Loss among First Grade School Children in Tirana,Albania – A Repeated Cross-Sectional Survey

Sallavaci¹

2014

Otolaryngology

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“…In addition, virtually all previous studies have been conducted in localized populations so that their wider relevance is unclear. Although the contribution of mtDNA mutations to congenital (prelingual, early childhood onset) deafness is minor, 20,21 mitochondrial involvement in the much larger group of patients with postlingual hearing impairment, that is, with onset during childhood or early adulthood, 22,23 whether familial or sporadic, has not been studied systematically.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA mutations in patients with postlingual, nonsyndromic hearing impairment

et al. 2004

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Mitochondrial mutations have previously been reported anecdotally in families with maternally inherited, nonsyndromic hearing impairment. To ascertain the contribution of mitochondrial mutations to postlingual but early-onset, nonsyndromic hearing impairment, we screened patients collected from within two different populations (southern Italy and UK) for previously reported mtDNA mutations associated with hearing disorders. Primer extension (SNP analysis) was used to screen for specific mutations, revealing cases of heteroplasmy and its extent. The most frequently implicated tRNA genes, Leu(UUR) and Ser(UCN), were also sequenced in all Italian patients. All tRNA genes were sequenced in those UK patients showing the clearest likelihood of maternal inheritance. Causative mtDNA mutations were found in approximately 5% of patients in both populations, representing almost 10% of cases that were clearly familial. Age of onset, where known, was generally before adulthood, and hearing loss was typically progressive. Haplogroup analysis revealed a possible excess of haplogroup cluster HV in the patients, compared with population controls, but of borderline statistical significance. In contrast, we did not find any of the previously reported mtDNA mutations, nor a significant deviation from haplogroup cluster frequencies typical of the control population, in patients with late adult-onset hearing loss (age-related hearing impairment) from the UK or Finland.

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“…1,2 Hearing impairment is associated with a large range of consequences on the child's social, cognitive, emotional, and neuromotor development. [3][4][5] Previous research has concentrated on the impact of hearing impairment on language development and mental health.…”

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confidence: 99%

Motor performance and correlates of mental health in children who are deaf or hard of hearing

Fellinger

Holzinger²,

Aigner

et al. 2015

Develop Med Child Neuro

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SDQStrengths and Difficulties Questionnaire ZNA Z€ urich Neuromotor Assessment AIM This cross-sectional study investigates the relationship between motor performance and mental health in a representative population of children with hearing impairment.METHOD Ninety-three pupils (45 males, 48 females) aged 6 years to 16 years (mean 11y 3mo, SD 2y 9mo) with hearing impairment of at least 40dB and a Nonverbal IQ greater than 70 were assessed for motor performance with the Z€ urich Neuromotor Assessment (ZNA) and for mental health with the parent version of the Strengths and Difficulties Questionnaire (SDQ). RESULTS Children with hearing impairment had lower motor performance scores in all fourZNA subscales compared with ZNA norms (z-scores À1.42 to À2.67). After controlling for Nonverbal IQ, ZNA pure motor performance correlated negatively with the SDQ total difficulties score. Pure motor, pegboard, and dynamic balance subscales correlated negatively with peer-relationship problems. Dynamic balance correlated negatively with emotional problems. Performance in pure motor and dynamic balance skills correlated negatively with age. Except for static balance, no correlation was found between motor performance and the degree of hearing impairment.INTERPRETATION Results confirm that a high percentage of children with hearing impairment have poor motor performance. These problems are associated with difficulties in social relationships. Early recognition of these problems may lead to interventions to assist children with hearing impairment with their peer relationships.In Western countries, 1 to 2 of every 1000 children are affected by permanent bilateral hearing loss of at least moderate degree. 1,2 Hearing impairment is associated with a large range of consequences on the child's social, cognitive, emotional, and neuromotor development.3-5 Previous research has concentrated on the impact of hearing impairment on language development and mental health. 3,4,6 With respect to motor performance, several studies have found that children with hearing impairment show deficits in motor development. These studies used a variety of instruments and were based on samples that may not have been representative of the population of children with hearing impairment.5,7-9 Studies reporting normal levels of motor development were based on parent questionnaires (Vineland Adaptive Behavior Scales) and had no direct motor examination. 10,11 Livingstone and McPhillips showed that about 80% of 25 children with a bilateral hearing impairment >60dB (mean age 8y 8mo) scored in the bottom 15% (borderline) and about 50% in the bottom 5% (definite problems) of the standardized sample of the Movement Assessment Battery for Children. 5 In other words, 80% of those with hearing impairment reached the cut-off of motor performance for a possible diagnosis of developmental coordination disorder. 12Considering different aspects of motor development, the greatest deficits were shown in balance and complex motor tasks. 5,7,13 One study matching 32 children wi...

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Cited by 435 publications

References 23 publications

Prevalence of Hearing Loss among First Grade School Children in Tirana,Albania – A Repeated Cross-Sectional Survey

Prevalence of Hearing Loss among First Grade School Children in Tirana,Albania – A Repeated Cross-Sectional Survey

Mitochondrial DNA mutations in patients with postlingual, nonsyndromic hearing impairment

Motor performance and correlates of mental health in children who are deaf or hard of hearing

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