Body mass index in adults with intellectual disability: distribution, associations and service implications: a population-based prevalence study.

BACKGROUND: Previous studies of weight problems in adults with intellectual disability (ID) have generally been small or selective and given conflicting results. The objectives of our large-scale study were to identify inequalities in weight problems between adults with ID and the general adult population, and to investigate factors associated with obesity and underweight within the ID population. METHODS: We undertook a population-based prevalence study of 1119 adults with ID aged 20 and over on the Leicestershire Learning Disability Register who participated in a programme of universal health checks and home interviews with their carers. We performed a cross-sectional analysis of the register data and compared the observed and expected prevalences of body mass index categories in the ID and general populations using indirect standardisation for age. We used logistic regression to evaluate the association of a range of probable demographic, physical, mental and skills attributes with obesity and underweight. RESULTS: In those aged 25 and over, the standardised morbidity ratio (SMR) for obesity was 0.80 (95% CI 0.64-1.00) in men and 1.48 (95% CI 1.23-1.77) in women. The SMR for underweight was 8.44 (95% CI 6.52-10.82) in men and 2.35 (95% CI 1.72-3.19) in women. Among those aged 20 and over, crude prevalences were 20.7% for obesity, 28.0% for overweight, 32.7% for normal weight and 18.6% for underweight. Obesity was associated with living independently/with family, ability to feed/drink unaided, being female, hypertension, Down syndrome and the absence of cerebral palsy. Underweight was associated with younger age, absence of Down syndrome and not taking medication. CONCLUSION: Obesity in women and underweight in both men and women was more common in adults with ID than in the general population after controlling for differences in the age distributions between the two populations. The associated factors suggest opportunities for targeting high-risk groups within the ID population for lifestyle and behaviour modification.

Provision of services for incontinent elderly people at home.

Results of a survey of elderly people living at home suggest that 8% suffer from important degrees of urinary dysfunction and are accessible to community based services. Supply of NHS incontinence aids was inadequate, and improvements in provision are recommended. Attendance at a continence clinic established for the survey period suggests a need for additional specialist services to be made available close to home. Correspondence between actual and predicted cystometric diagnosis provides encouragement to develop simple, valid assessment procedures as an aid to patient management. For the average District Health Authority serving a population of 250 000, two continence nurse advisers and 50 continence clinic sessions per annum are recommended for people aged 75 and over.

Handicaps associated with incontinence: implications for management.

STUDY OBJECTIVE: The aim was to explore the relationship between dementia, impairment of mobility, and incontinence and the implications for management. DESIGN: The study was a survey of a sample population drawn from a general practice register. SETTING: A large general practice serving the entire population of Melton Mowbray, Leicestershire, UK. PARTICIPANTS: Of 1329 persons aged 75 or over, 1203 (90%) took part in the survey. Of non-responders, refusers accounted for 5%, deaths 4%, and failure to trace 1%. MEASUREMENTS AND MAIN RESULTS: 12% of the population complained of incontinence. No more than 24% of these cases were demented. Dementia and isolated locomotor problems were significantly associated with presence of incontinence, but 31% of cases were completely free of either problem. A minimum estimate of 56% of cases of incontinence were considered to be due to local physical disorders of the bladder. CONCLUSIONS: A search for local disorders causing incontinence is important, and more attention should be paid to the management of locomotor problems and possibly depression in the relief of incontinence.

Multiple sclerosis, dental caries and fillings: a case-control study.

OBJECTIVES: To investigate the association between multiple sclerosis, dental caries, amalgam fillings, body mercury and lead. DESIGN: Matched case-control study. SETTING: Leicestershire in the years 1989-1990. SUBJECTS: Thirty-nine females with multiple sclerosis (of recent onset) were matched with 62 controls for age, sex and general practitioner. METHODS: Home interview of cases and controls within which there was an assessment of the DMFT index and blood and urine mercury and lead levels. RESULTS: The odds of being a MS case increased multiplicatively by 1.09 (95% CI 1.00, 1.18) for every additional unit of DMFT index of dental caries. This represents an odds ratio of 1.213 or a 21% increase in risk of MS in relation to dental caries in this population. There was no difference between cases and controls in the number of amalgam fillings or in body mercury or lead levels. There was a significant correlation between body mercury levels and the number of teeth filled with amalgam (controls: r = +0.430, P = 0.006, cases: r = +0.596, P = 0.001). CONCLUSION: There was evidence of excess dental caries among MS cases compared with the controls. This finding supports the strong geographical correlation between the two diseases. A further study of this association is recommended.

Mortality in adults with moderate to profound intellectual disability: a population-based study.

BACKGROUND: People with intellectual disability (ID) experience a variety of health inequalities compared with the general population including higher mortality rates. This is the first UK population-based study to measure the extent of excess mortality in people with ID compared with the general population. METHOD: Indirectly standardized all-cause and disease mortality ratios (SMRs) and exact Poisson confidence intervals were calculated by age and sex for all adults, aged 20 years or over, with moderate to profound ID living in Leicestershire and Rutland, UK, between 1993 and 2005. The general population of Leicestershire and Rutland, which has a population of approximately 700,000 individuals in this age range, was used for comparison. To explore differences within the study population, overall SMRs were also calculated by presence of Down syndrome and last place of residence (city or county). RESULTS: Of 2436 adults identified, 409 (17%) died during 23,000 person-years of follow-up. Both all-cause and disease-specific mortality were around three times higher than the general population but varied considerably with age. The largest differences were observed in people in their twenties, where all-cause mortality was almost nine times higher in men (SMR=883; 95% CI=560-1325) and more than 17 times higher in women (SMR=1722; 95% CI=964-2840). At a particular disadvantage were people with Down syndrome and women with ID living in the city. CONCLUSIONS: The relatively high SMRs observed in young people and in women, particularly those living in inner city areas and with Down syndrome, deserve further investigation for possible explanations, including socio-economic factors.

The natural history of overactive bladder and stress urinary incontinence in older women in the community: a 3-year prospective cohort study.

AIMS: This is the first study designed to describe the natural history of stress urinary incontinence (SUI) and overactive bladder (OAB), using validated symptom syndrome severity scores developed for the purpose. METHODS: Two separate but related studies were involved, (i) a clinic sample (N = 2,052) from a randomised controlled trial (RCT) and (ii) a prospective cohort study (N = 12,750) with 3-year follow-up. Subjects in both studies were women aged 40 or more living in the community, approached using similar postal questionnaires. Severity scores using standardised urinary symptoms were derived for SUI and OAB from weightings obtained from logistic regression models of symptoms in relation to urodynamic diagnosis. Symptom severity scores were plotted for baseline and 3 years of follow-up to demonstrate the natural history of the main categories of SUI and OAB. RESULTS: Overactive bladder and SUI syndrome severity scores showed good criterion validity in relation to relevant clinical measures and good test-retest reliability. OAB severity increased progressively with age including a period of accelerated increase in the 60s. In contrast, SUI severity showed two age-related peaks around age 60 and again at age 80. SUI severity also showed a more fluctuating pattern from year to year compared to OAB. CONCLUSIONS: Contrasting patterns of natural history for OAB and SUI syndromes were identified consistent with differences in the patterns of related co-morbidities. Further studies are needed to confirm these findings.

Physical aggression towards others in adults with learning disabilities: prevalence and associated factors.

BACKGROUND: Many people with learning disabilities (LD) show aggressive behaviour, but the extent of the problem and its associated factors and effects are unclear. METHODS: A cross-sectional analysis was carried out using interview data from 3065 adults with LD on the Leicestershire LD Register. Physical aggression towards others was defined as carers reporting frequent (more than three times per week) and/or severe episodes. Individuals with and without aggression were compared using multiple logistic regression models for potential physical and psychological factors. RESULTS: Carers reported that 443 (14%) of adults were physically aggressive towards others. Men (P = 0.001), younger individuals (P < 0.001), people with more severe LD (P < 0.001) and those in institutional settings (P < 0.001) had a significantly higher prevalence of physical aggression. People with Down syndrome had a lower prevalence of physical aggression (P < 0.001). After adjustment, we found no relationship between aggression and the presence of epilepsy or autism. Among psychological factors, symptoms of frustration (P < 0.001) and mood swings (P < 0.001) were associated with higher levels of aggression. Failure to cope among carers was reported by 14% overall: 42% of people caring for adults with aggression said they were unable to cope compared with 10% of those caring for adults without aggression. CONCLUSIONS: Physical aggression towards other people presents a significant challenge to carers of adults with LD. Further research is needed to identify aetiological factors with a view to finding effective interventions to reduce, and improve management of, this behaviour.

Relationship between urinary symptoms reported in a postal questionnaire and urodynamic diagnosis.

AIMS: To describe the relationship between symptoms reported in a self-completed postal questionnaire and urinary disorders based on urodynamic investigation. METHODS: The study population was selected from women aged 40 years or over living in the community, who responded to a postal questionnaire. Following assessment and appropriate conservative interventions, those with a pre-defined level of severity of symptoms were offered urodynamic investigation. Logistic regression examined the association between urinary symptoms and the urodynamic diagnoses of detrusor overactivity (DO) and urodynamic stress incontinence (USI). RESULTS: Four hundred eighty-eight women completed urodynamic investigation; 29.1% (142/488) were found to have DO, 33.6% (164/488) USI, 20.7% (101/488) mixed incontinence, and 16.6% (81/488) no urodynamic abnormality. Stress incontinence (SI) and urge incontinence (UI) were included in the risk model for USI. SI reported monthly or more was associated with increased risk of USI, and UI reported weekly or more with decreased risk (sensitivity 76.9%; specificity 56.3%; positive predictive value (PPV) 67.8%). For DO, strong or overwhelming urgency, UI monthly or more, and nocturia once a night or more were all significantly associated with an increased risk while reporting of SUI monthly or more reduced the risk (sensitivity 63.1%; specificity 65.1%; PPV 63.1%). CONCLUSIONS: Urinary symptoms reported in a postal questionnaire are able to predict urodynamic diagnoses with moderate accuracy. These models may be useful tools with which to categorize urinary disorders for epidemiological study and, with further development, allocate first line treatment.

Obesity in adults with Down syndrome: a case-control study.

BACKGROUND: Obesity has a negative impact upon mortality and morbidity. Studies report that obesity is more prevalent in individuals with Down syndrome than individuals with intellectual disabilities (ID) not associated with Down syndrome. However, there have been no studies using a methodology of matched comparison groups and findings from previous studies are contradictory. METHODS: A detailed method was used to identify all adults with ID in Leicestershire. Individuals were invited to participate in a medical examination - that included measurement of their height and weight, from which body mass index (BMI) was calculated. For each person with Down syndrome, an individual matched for gender, age and accommodation type was identified, from the Leicestershire ID database. RESULTS: The data for 247 matched pairs is reported. Women with Down syndrome had lower mean height and weight, but greater mean BMI than the matched pairs. Men with Down syndrome had a lower mean height and weight but there was no statistical difference in BMI compared to the matched pairs. Using World Health Organization categories of BMI, women with Down syndrome were more likely to be overweight or obese than their matched pairs (odds ratio = 2.17). Men with Down syndrome were more likely to be in the overweight category than their matched pairs but were less likely to be obese (odds ratio = 0.85). CONCLUSIONS: This study demonstrates that, compared to a matched sample, there is a greater prevalence of obesity amongst women with Down syndrome but not men. As the impact on the health of people with Down syndrome of being overweight or obese is uncertain, this is an area that requires further study.

Recent trends in incidence, morbidity and survival in Down's syndrome.

The numbers of young adults with Down's syndrome is currently increasing due to improvements in survival and a period of increased incident numbers in the 1960s. Deaths from infection have shown the largest decline. Forty-one per cent of survivors suffer from one or more serious morbid conditions, principally congenital heart disease. These changes are adding to the pressures upon local authorities for day and residential care facilities.

More and better services for people with learning disabilities.

A prevalence study of disability, use of and need for services was undertaken to estimate the need for NHS and other forms of residential, day and respite care for people with severe learning disabilities. Subjects aged 20 or more were drawn from the Leicestershire Learning Disabilities Register (n = 1887). Information was collected by interview with a professional career. The age-specific prevalence was 2.9 per 1000 and the response rate was 88 per cent. A disability rating predicted consultant opinion on need for NHS residential care with a sensitivity and specificity of 82 per cent. Predictive disability factors included problems with behaviour, toileting, speech, epilepsy, postural deformity and use of a wheelchair. Planning targets per 100,000 population aged 20 or more were estimated as follows: NHS residential care--47 places; other residential care--103 places; respite care--36 people; day care--224 places. The need for residential care and medical support remains eminently predictable within the new philosophical framework of provision. Since 1971 the need for NHS residential places has decreased but remains important for people with high dependence. Day care targets have increased and diversified.

Prevalence, morbidity and service need among South Asian and white adults with intellectual disability in Leicestershire, UK.

BACKGROUND: Previous reports have suggested that South Asian and white UK populations have different prevalences of intellectual disability (ID), related psychological morbidity and service use. The aim of the present study was to compare these rates among South Asian and white adults in Leicestershire, UK. METHOD: This cross-sectional study is comprised of two parts. The analysis of prevalence is based on data from all South Asian and white adults known to the Leicestershire Learning Disabilities Register in 1991, with population denominators being drawn from the 1991 census. The other analyses use data collected from the most recent semi-structured home interviews, carried out between 1987 and 1998, with 206 South Asian and 2334 white adults. RESULTS: The prevalence of ID in adults in Leicestershire is 3.20 per 1000 in South Asians and 3.62 per 1000 in whites. Among adults with ID, South Asians have similar prevalences of disabilities to whites and significantly lower skill levels. South Asians show similar levels of psychological morbidity, but make significantly lower use than whites of psychiatric services, residential care and respite care. South Asians use community services as extensively as whites, but feel that they have a substantially greater unmet need, especially with regard to social services. CONCLUSION: South Asian and white populations have similar prevalences of ID and related psychological morbidity. Culturally appropriate services for South Asian adults may need to focus on skill development and community care.

Calcaneal ultrasound attenuation in an elderly population: measurement position and relationships with body size and past fractures.

This study demonstrates, the relationship between past fracture, body size and broadband ultrasound attenuation (BUA) and investigates two sites of BUA measurement in a representative elderly population of men and women (n = 2106). We measured BUA at a fixed position and at a consistent anatomic position within the calcaneus. We found fixed BUA was less closely correlated with stature and age than anatomic BUA. Both correlations were substantially weaker in men than in women. Mean BUA was significantly lower in women with a past fracture compared with nonfracturers (fixed BUA 63.3 vs 69.4 dB/MHz, p = 0.0004; anatomic BUA 77.6 vs 81.7 dB/MHz, p = 0.013). However, in women, the fixed BUA was better than the anatomic BUA at discriminating between fracturers and nonfracturers (OR 1.38/SD (95% CI 1.12-1.68) and OR 1.22/SD (0.99-1.52), respectively) when adjusted for body size and age. There was no significant difference in either BUA in men with or without a past fracture. In conclusion, currently the fixed position for BUA measurement is preferable and, whilst we have demonstrated that it is possible to locate an anatomically consistent point in the calcaneus, the position chosen by this study did not provide a measurement with more discriminatory capability than the fixed position. In women, BUA behaves similarly to bone mineral density in relation to stature and in its strength of association with past fracture, while the lack of association in men may reflect differing contributions by bone strength to fracture risk in the sexes.

Community care for adults with learning disability and their carers: needs and outcomes from the Leicestershire register.

A cross-sectional study, based on an epidemiological register, was carried out to describe the prevalence of disabilities, felt needs and use of services for adults with learning disability and to compare outcomes of reported morbidity, stress and satisfaction among their informal carers. Subjects included 2117 adults and 982 carers known to specialist services in Leicestershire. Behavioural and psychological problems and epilepsy were the main disabilities in adults. The leading unmet needs reported by residential carers were for daycare and other forms of residence, and those reported by informal carers were for financial help, long-term social support, respite care and housing adaptations. Informal carers reported 40% more limiting health disorders compared to the general population, with depression almost four times more common among female carers. Divisions between health and social care are causing inequality and hardship. Lifelong informal carers need options for independence. The increase over time in the prevalence of adults with severe learning disabilities adds to the evidence that more resources for care are needed. Epidemiological registers and methods should be developed to aid purchasing and provision for this client group.

A profile of disordered micturition in the elderly at home.

A prevalence survey of disturbed micturition in the elderly identified 7% with important degrees of disorder, 1% with lesser disorder and 1% who were catheterized. Incontinence, urgency, frequency and nocturia were the symptoms most commonly reported. Fifty-three per cent of people describing incontinence used preventive aids but one third of these continued to experience wetting of external clothing. Crude categorization of dysfunction on the basis of symptoms suggested that a component of unstable bladder was present in approximately 4% of the elderly population.

The management of urinary incontinence in residential and nursing homes for older people.

We assessed the management of urinary incontinence amongst older people in residential and nursing homes and examined strategies for continence care in the homes. A random sample of local authority and private residential and nursing homes was drawn from an earlier census of long-term care. Strategies for continence care, the standard of care provided and the need for more help were determined by means of a structured questionnaire and the observations of a continence adviser. A random selection of residents in each of the homes was assessed for the presence, severity and symptoms of urinary incontinence, for symptom control and physical dependency. Eighty-seven per cent of the homes used pads and 83% daytime toileting to promote continence care but only 52% practised night-time toileting and 49% the use of clear toilet signs. A greater emphasis was placed on incontinence management rather than continence promotion, the latter being "good' in only 32% of homes. Although the majority of homes reported having adequate access to aids and appliances, 39% of residents had severe symptoms of urinary incontinence resulting in bed-wetting and wetting of clothing. Substantial social and psychological effects were found; 87% of residents needed changes in their management of the condition and incontinence management was "good' in only 47% of homes. Although 73% of homes were optimistic about offering good continence care, they were infrequently supported by continence nurses (30% of homes) or specialist continence doctors (9% of homes). Consequently 57% requested more help from the specialist services. The high prevalence of severe and uncontrolled symptoms of urinary incontinence combined with the lack of support received by the homes for the management of these residents indicated the urgent need for a greater input from the specialist continence service.

Evaluation of a hip fracture risk score for assessing elderly women: the Melton Osteoporotic Fracture (MOF) study.

Risk assessment for osteoporotic fracture within a primary care context, in old age, has received little attention. We aimed to develop such a risk score and assess its feasibility and validity. This was a 100% population-based, prospective cohort study, with a minimum 5 1/2 year follow-up among women aged 70 years and over, set in a large single general practice in Melton Mowbray, Leicestershire, UK. The main outcome measures were hip fracture, death and migration. Baseline measures included calcaneal broadband ultrasound attenuation (BUA), reported falls, balance, previous fracture history, medical problems, visual acuity, foot problems, body size, lifestyle factors and cognitive impairment. Seventy percent of the sample (1289) participated, including those in residential accommodation. Independent predictors of hip fracture over 3 years were low weight, kyphosis, poor circulation in the foot, epilepsy, short-term use of steroids and poor trunk maneuver. Using the highest tertile, a risk score based on these variables identified 84% (95% CI: 70% to 98%) of the hip fractures with a specificity of 68% (95% CI: 65% to 71%). BUA did not independently predict hip fracture in women of this age group. This study shows that a combination of readily obtained risk factors can identify elderly women who will sustain a hip fracture in the next 3 years more accurately than bone measurements alone in younger women. It also suggests that a risk score approach to universal assessment in the elderly is a feasible proposition in the primary care setting.

The association of diet and other lifestyle factors with overactive bladder and stress incontinence: a longitudinal study in women.

OBJECTIVES: To investigate the role of diet and other lifestyle factors in the incidence of overactive bladder and stress incontinence in women. Studies have suggested relationships between different aspects of lifestyle and symptoms of urinary incontinence, but there is a lack of firm evidence about their role in its cause. SUBJECTS AND METHODS: A random sample of women aged >or= 40 years living at home took part in a prospective cohort study. Baseline data on urinary symptoms, diet and lifestyle were collected from 7046 women using a postal survey and food-frequency questionnaire. Follow-up data on urinary symptoms were collected from 6424 of the women in a postal survey 1 year later. Logistic regression was used to investigate the association of food and drink consumption and other lifestyle factors with the incidence of overactive bladder and stress incontinence. RESULTS: In the multivariate model for the onset of an overactive bladder, there were significantly increased risks associated with obesity, smoking and consumption of carbonated drinks, and reduced risks with higher consumption of vegetables, bread and chicken. Obesity and carbonated drinks were also significant risk factors for the onset of stress incontinence, while consumption of bread was associated with a reduced risk. CONCLUSIONS: Causal associations with obesity, smoking and carbonated drinks are confirmed for bladder disorders associated with incontinence, and additional associations with diet are suggested. Behavioural modification of lifestyle may be important for preventing and treating these disorders.