Catherine M. McMahon

Child and family outcomes of a long-term nurse home visitation programme: a randomised controlled trial

Objective To investigate the impact of a long-term nurse home visiting programme, embedded within a universal child health system, on the health, development and well-being of the child, mother and family. Design Randomised controlled trial. Setting/participants 208 (111 intervention, 97 comparison) eligible at-risk mothers living in a socioeconomically disadvantaged area in Sydney, booking into the local public hospital for confinement. Intervention A sustained and structured nurse home visiting antenatal and postnatal parenting education and support programme. Control Usual universal care. Main outcome measures The quality of the home environment for child development (12–24 months), parent–child interaction and child mental, psychomotor and behavioural development at 18 months. Results Mothers receiving the intervention were more emotionally and verbally responsive (HOME observation) during the first 2 years of their childs life than comparison group mothers (mean difference 0.5; 95% CI 0.1 to 0.9). Duration of breastfeeding was longer for intervention mothers than comparison mothers (mean difference 7.9 weeks; 95% CI 2.9 to 12.9). There was no significant difference in parent–child interaction between the intervention and comparison groups. There were no significant overall group differences in child mental, psychomotor or behavioural development. Mothers assessed antenatally as having psychosocial distress benefitted from the intervention across a number of areas. Conclusion This sustained nurse home visiting programme showed trends to enhanced outcomes in many, but not all, areas. Specifically, it resulted in clinically enhanced outcomes in breastfeeding duration and, for some subgroups of mothers, womens experience of motherhood and childrens mental development. Trial registration number ACTRN12608000473369.

Severity of age-related hearing loss is associated with impaired activities of daily living

BACKGROUND age-related hearing loss is a common chronic condition; hence, it is important to understand its influence on the functional status of older adults. We assessed the association between hearing impairment with activity limitations as assessed by the activities of daily living (ADL) scale. METHODS a total of 1,952 Blue Mountains Hearing Study participants aged ≥60 years had their hearing levels measured using pure-tone audiometry. A survey instrument with questions on functional status as determined by the Older Americans Resources and Services ADL scale was administered. RESULTS one hundred and sixty-four (10.4%) participants reported ADL difficulty. A higher proportion of hearing impaired than non-impaired adults reported difficulties in performing three out of the seven basic ADL and six out of the seven instrumental ADL tasks. After multivariable adjustment, increased severity of hearing loss was associated with impaired ADL (P(trend )= 0.001). Subjects with moderate to severe hearing loss compared with those without, had a 2.9-fold increased likelihood of reporting difficulty in ADL, multivariate-adjusted odds ratio (OR): 2.87 [95% confidence interval (CI): 1.59-5.19]. Participants aged <75 years with hearing loss compared with those without, had 2-fold higher odds of impaired ADL. Having worn or wearing a hearing aid was also associated with a 2-fold increased likelihood of impaired ADL. CONCLUSION functional status as measured by a common ADL scale is diminished in older hearing impaired adults. Our findings suggest that severely diminished hearing could make the difference between independence and the need for formal support services or placement.

Depressive symptoms in older adults with hearing impairments: the Blue Mountains Study.

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Relationship of Type 2 diabetes to the prevalence, incidence and progression of age-related hearing loss

Aims  Type 2 diabetes and associated microvascular abnormalities are postulated to affect hearing. Our study reports on the relationship between Type 2 diabetes and the prevalence, 5‐year incidence and progression of hearing impairment in a representative, older, Australian population.

Music Training Improves Pitch Perception in Prelingually Deafened Children With Cochlear Implants

OBJECTIVE: The comparatively poor music appreciation in patients with cochlear implants might be ascribed to an inadequate exposure to music; however, the effect of training on music perception in prelingually deafened children with cochlear implants remains unknown. This study aimed to investigate whether previous musical education improves pitch perception ability in these children. METHODS: Twenty-seven children with congenital/prelingual deafness of profound degree were studied. Test stimuli consisted of 2 sequential piano tones, ranging from C (256 Hz) to B (495 Hz). Children were asked to identify the pitch relationship between the 2 tones (same, higher, or lower). Effects of musical training duration, pitch-interval size, current age, age of implantation, gender, and type of cochlear implant on accuracy of pitch perception were evaluated. RESULTS: The duration of musical training positively correlated with the correct rate of pitch perception. Pitch perception performance was better in children who had a cochlear implant and were older than 6 years than in those who were aged ≤6 years (ie, preschool). Effect of pitch-interval size was insignificant on pitch perception, and there was no correlation between pitch perception and the age of implantation, gender, or type of cochlear implant. CONCLUSIONS: Musical training seems to improve pitch perception ability in prelingually deafened children with a cochlear implant. Auditory plasticity might play an important role in such enhancement. This suggests that incorporation of a structured training program on music perception early in life and as part of the postoperative rehabilitation program for prelingually deafened children with cochlear implants would be beneficial. A longitudinal study is needed to show whether improvement of music performance in these children is measurable by use of auditory evoked potentials.

Incidence and Predictors of Hearing Aid Use and Ownership Among Older Adults With Hearing Loss

PURPOSE The reasons are not clear as to why people who need hearing aids and possess them do not use them. We aimed to describe the incidence and predictors of hearing aid ownership and use among older adults. METHODS We included 2,015 Blue Mountains Hearing Study participants aged ≥55 years who were examined between 1997 and 1999 and 2002 and 2004. Hearing levels were measured with pure-tone audiometry. RESULTS The 5-year incidence of hearing aid use and ownership was 8.1% and 8.5%, respectively. Age was associated with incident hearing aid ownership and use, multivariable-adjusted odds ratio (OR) per decade increase in age of 1.79 (95% confidence interval [CI], 1.21-2.64) and of 1.66 (95% CI, 1.15-2.40), respectively. Any level of hearing loss (HL) at baseline predicted a 2.8-fold increased likelihood of using a hearing aid at follow-up. Hearing handicap was associated with 7% increased likelihood of incident aid use. Key reasons provided for not obtaining/using a hearing aid were: not recommended one (8.0%), its high cost (1.7%), and believing that they did not need one (9.0%). CONCLUSIONS Incident hearing aid ownership and usage was relatively low among hearing impaired adults. Age, question-defined hearing handicap, and measured HL were significant predictors of incident hearing aid use/ownership.

Dual Sensory Impairment in Older Age

Objectives: Hearing and visual impairments are commonly viewed separately in research and service provision, but they often occur together as dual sensory impairment or DSI in older populations. This article examines the frequency and effects of DSI in older age and notes limitations in the evidence. Methods: Search of electronic databases of published papers. Results: DSI diminishes communication and well-being and can cause social isolation, depression, reduced independence, mortality, and cognitive impairment. Discussion: Although intuitively DSI may be expected to have additional impacts over single sensory impairment, research findings are inconclusive. Services and supports required by people with DSI are simply a combination of those required by people with single vision and hearing loss, taking account of the unique communication difficulties posed by DSI.

Hearing-impaired adults are at increased risk of experiencing emotional distress and social engagement restrictions five years later

BACKGROUND we aimed to assess both cross-sectional and temporal links between measured hearing impairment and self-perceived hearing handicap, and health outcomes. METHODS in total, 811 Blue Mountains Hearing Study participants (Sydney, Australia) aged ≥55 years were examined twice (1997-99 and 2002-04). Hearing levels were measured with pure-tone audiometry. The shortened version of the hearing handicap inventory (HHIE-S) was administered, scores ≥8 defined hearing handicap. RESULTS baseline hearing impairment was strongly associated with 7 of the 10 HHIE-S questions, 5 years later. Individuals with and without hearing impairment at baseline reported that they felt embarrassed and/or frustrated by their hearing problem, and that it hampered their personal/social life, multivariable-adjusted OR: 11.5 (CI: 3.5-38.1), OR: 6.3 (CI: 2.5-15.7) and OR: 6.0 (CI: 2.1-17.5), respectively, 5 years later. Hearing-impaired, compared with non-hearing-impaired adults had a significantly higher risk of developing moderate or severe hearing handicap, OR: 3.35 (CI: 1.91-5.90) and OR: 6.60 (CI: 1.45-30.00), respectively. Cross-sectionally (at wave 2), hearing handicap increased the odds of depressive symptoms and low self-rated health by 80 and 46%, respectively. CONCLUSION older, hearing-impaired adults were significantly more likely to experience emotional distress and social engagement restrictions (self-perceived hearing handicap) directly due to their hearing impairment.

Dual Sensory Impairment in Older Adults Increases the Risk of Mortality: A Population-Based Study

Although concurrent vision and hearing loss are common in older adults, population-based data on their relationship with mortality is limited. This cohort study investigated the association between objectively measured dual sensory impairment (DSI) with mortality risk over 10 years. 2812 Blue Mountains Eye Study participants aged 55 years and older at baseline were included for analyses. Visual impairment was defined as visual acuity less than 20/40 (better eye), and hearing impairment as average pure-tone air conduction threshold greater than 25 dB HL (500–4000 Hz, better ear). Ten-year all-cause mortality was confirmed using the Australian National Death Index. After ten years, 64% and 11% of participants with DSI and no sensory loss, respectively, had died. After multivariable adjustment, participants with DSI (presenting visual impairment and hearing impairment) compared to those with no sensory impairment at baseline, had 62% increased risk of all-cause mortality, hazard ratio, HR, 1.62 (95% confidence intervals, CI, 1.16–2.26). This association was more marked in those with both moderate-severe hearing loss (>40 dB HL) and presenting visual impairment, HR 1.84 (95% CI 1.19–2.86). Participants with either presenting visual impairment only or hearing impairment only, did not have an increased risk of mortality, HR 1.05 (95% CI 0.61–1.80) and HR 1.24 (95% CI 0.99–1.54), respectively. Concurrent best-corrected visual impairment and moderate-severe hearing loss was more strongly associated with mortality 10 years later, HR 2.19 (95% CI 1.20–4.03). Objectively measured DSI was an independent predictor of total mortality in older adults. DSI was associated with a risk of death greater than that of either vision loss only or hearing loss alone.

The effects of smoking and alcohol consumption on age-related hearing loss: the Blue Mountains hearing study

Objectives: We aimed to investigate the temporal association between smoking or alcohol consumption and hearing loss, and to confirm previously published cross-sectional associations. Design: The Blue Mountains Hearing Study is a population-based survey of age-related hearing loss conducted in a defined suburban area, west of Sydney. Hearing loss was measured in 2956 participants (aged 50+ yrs) and was defined as the pure-tone average of frequencies 0.5, 1.0, 2.0, and 4.0 kHz >25 dB HL in the better ear (bilateral hearing loss). Alcohol consumption and smoking status were measured using an interviewer-administered questionnaire. Logistic regression was used to obtain odds ratios (OR) with 95% confidence intervals (95% CI) that compared the chances of having hearing loss in participants who did or did not smoke or consume alcohol, after adjusting for other factors previously reported to be associated with hearing loss. Results: The prevalence of hearing loss at baseline was 33.0% (N = 929) and the 5-year incidence of hearing loss was 17.9% (N = 156). Cross-sectional analysis demonstrated a significant protective association between the moderate consumption of alcohol (>1 but ≤2 drinks/day) and hearing function in older adults (compared with nondrinkers), OR 0.75 (95% CI, 0.57 to 0.98). Current smokers not exposed to occupational noise had a significantly higher likelihood of hearing loss after adjusting for multiple variables, OR 1.63 (95% CI, 1.01 to 2.64). A formal likelihood ratio test demonstrated that the interaction between smoking and noise exposure was not significant (p = 0.23). When the joint effects of alcohol consumption and smoking on hearing were explored, there was a trend for alcohol to have a protective relationship with hearing loss in smokers, but this was not statistically significant. However, the 5-year incidence of hearing loss was not predicted by either smoking or alcohol consumption. Conclusions: This study confirms previously reported associations between alcohol consumption or smoking and prevalent hearing loss, but these were not demonstrated in temporal data. Other risk factors could confer greater vulnerability or cause the initial damage to hearing. Future large population-based studies, exploring the influence of other risk factors on the development of age-related hearing loss are warranted.