RESUMO
The population of older adults is growing exponentially. Research shows that current protein intake recommendations are unlikely to meet the ageing requirements and may be linked to reduced physical function. Ensuring optimal function levels is crucial for independence and quality of life in older age. This study aims to quantify the protein intake in those over 90 years of age and determine the association between historical protein intake (2011) and subsequent physical function at ten years follow-up (2021). Eighty-one participants (23 Maori and 54 non-Maori) undertook dietary assessment 24 h multiple-pass recall (MPR) and a standardised health and social questionnaire with physical assessment in 2011 and 2021. Intake24, a virtual 24 h MPR, was utilised to analyse dietary intake. Functional status was measured using the Nottingham Extended Activities of Daily Living Scale (NEADL), and physical performance was the Short Physical Performance Battery (SPPB). Maori men and women consumed less protein (g/day) in 2021 than in 2011 (P = 0.043 in men), but weight-adjusted protein intake in Maori participants over the ten years was not significantly reduced. Both non-Maori men and women consumed significantly less protein (g/day) between 2011 and 2021 (p = 0.006 and p = 0.001, respectively), which was also significant when protein intake was adjusted for weight in non-Maori women (p = 0.01). Weight-adjusted protein intake in 2011 was independently associated with functional status (NEADL score) in 2021 (p =< 0.001). There was no association between past protein intake and SPPB score (p = 0.993). Animal protein was replaced with plant-based protein over time. In conclusion, a reduction in protein intake was seen in all participants. The independent association between past protein intake and future functional status supports recommendations to keep protein intake high in advanced age.
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Atividades Cotidianas , Proteínas Alimentares , Humanos , Feminino , Estudos de Coortes , Nova Zelândia/epidemiologia , Qualidade de Vida , Inquéritos e QuestionáriosRESUMO
OBJECTIVES: Previous findings suggest a vascular foundation underlying apathy, but transdiagnostic and prospective evidence on vascular apathy is scarce. This study examines the association between vascular disease and the presence and development of apathy symptoms in the very old. METHODS: Four cohorts of the Towards Understanding Longitudinal International older People Studies (TULIPS)-consortium were included in a two-staged, individual participant data meta-analysis using generalized linear mixed models. Vascular disease was defined as a history of any clinical atherosclerotic pathology (angina pectoris, myocardial infarction, intermittent claudication, transient ischemic attack, stroke or related surgeries) and was related to apathy symptoms as repeatedly measured by the Geriatric Depression Scale (GDS-3A ≥2) over a maximum of 5 years. RESULTS: Of all 1868 participants (median age 85 years old), 53.9% had vascular disease and 44.3% experienced apathy symptoms. Participants with vascular disease had a 76% higher risk of apathy symptoms at baseline (odds ratio (OR) 1.76, 95% confidence interval (CI) 1.32-2.35), irrespective of depressive symptoms and only partially explained by stroke. Conversely, there was no association of vascular disease with the occurrence of apathy symptoms longitudinally, both in those with apathy at baseline (OR 1.00, 95% CI 0.84-1.20) and without (OR 0.96, 95% CI 0.84-1.09). CONCLUSIONS: Vascular disease in the very old is associated with apathy symptoms cross-sectionally, but not proven longitudinally, independent of depressive symptoms. These findings query a vascular cause underlying apathy symptoms. However, the consistency of our cross-sectional findings in direction and magnitude across the TULIPS-consortium do emphasize international relevance of the interplay of vascular factors and apathy in advanced age, which meaning needs further unravelling.
Assuntos
Apatia , Ataque Isquêmico Transitório , Acidente Vascular Cerebral , Humanos , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Escalas de Graduação Psiquiátrica , Estudos Prospectivos , Depressão/epidemiologiaRESUMO
OBJECTIVES: While randomized controlled trials have proven the benefits of blood pressure (BP) lowering in participating octogenarians, population-based observational studies suggest an association between low systolic blood pressure (SBP) and faster overall decline. This study investigates the effects of BP-lowering treatment, a history of cardiovascular diseases (CVD), and cognitive and physical fitness on the associations between SBP and health outcomes in the very old. METHODS: Five cohorts from the Towards Understanding Longitudinal International older People Studies (TULIPS) consortium were included in a two-step individual participant data meta-analysis (IPDMA). We pooled hazard ratios (HR) from Cox proportional-hazards models for 5-year mortality and estimates of linear mixed models for change in cognitive and functional decline. Models were stratified by BP-lowering treatment, history of CVD, Mini-Mental State Examination scores, grip strength (GS) and body mass index (BMI). RESULTS: Of all 2480 participants (59.9% females, median 85âyears), median baseline SBP was 149âmmHg, 64.3% used BP-lowering drugs and 47.3% had a history of CVD. Overall, higher SBP was associated with lower all-cause mortality (pooled HR 0.91 [95% confidence interval 0.88-0.95] per 10âmmHg). Associations remained irrespective of BP-lowering treatment, history of CVD and BMI, but were absent in octogenarians with above-median MMSE and GS. In pooled cohorts, SBP was not associated with cognitive and functional decline. CONCLUSION: While in the very old with low cognitive or physical fitness a higher SBP was associated with a lower all-cause mortality, this association was not evident in fit octogenarians. SBP was not consistently associated with cognitive and functional decline.
Assuntos
Doenças Cardiovasculares , Hipertensão , Hipotensão , Idoso , Idoso de 80 Anos ou mais , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/uso terapêutico , Pressão Sanguínea/fisiologia , Doenças Cardiovasculares/complicações , Feminino , Humanos , Hipotensão/complicações , Masculino , Avaliação de Resultados em Cuidados de Saúde , Fatores de RiscoRESUMO
OBJECTIVES: There is evidence that loneliness is detrimental to the subjective well-being of older adults. However, little is known on this topic for the cohort of those in advanced age (80 years or older), which today is the fastest-growing age group in the New Zealand population. We examined the relationships between loneliness and selected subjective well-being outcomes over 5 years. METHODS: We used a regional, bicultural sample of those in advanced age from 2010 to 2015 (Life and Living in Advanced Age: a Cohort Study in New Zealand). The first wave enrolled 937 people (92% of whom were living in the community): 421 Maori (Indigenous New Zealanders aged 80-90 years) and 516 non-Maori aged 85 years. We applied standard regression techniques to baseline data and mixed-effects models to longitudinal data, while adjusting for sociodemographic factors. RESULTS: For both Maori and non-Maori, strong negative associations between loneliness and subjective well-being were found at baseline. In longitudinal analyses, we found that loneliness was negatively associated with life satisfaction as well as with mental health-related quality of life. DISCUSSION: Our findings of adverse impacts on subjective well-being corroborate other evidence, highlighting loneliness as a prime candidate for intervention-appropriate to cultural context-to improve well-being for adults in advanced age.
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Solidão , Qualidade de Vida , Idoso , Envelhecimento , Estudos de Coortes , Humanos , Nova Zelândia/epidemiologia , PrevalênciaRESUMO
BACKGROUND: Rapidly ageing populations means that many people now die in advanced age. This paper investigated public hospital and long-term care home costs in the 12 months before death in Maori and non-Maori of advanced age in New Zealand. METHODS: Data from an existing longitudinal study (LiLACS NZ) was used, in which 937 older New Zealanders were enrolled in 2010. At the time of this study, 213 Maori and 241 non-Maori in the cohort had died. National Health Index numbers were linked to the hospitalisation National Minimum Dataset to ascertain public hospitalisation and care home costs in the last year of life. RESULTS: The average total publicly funded hospital and long-term care home costs in the 12 months prior to death were $16,211 and $17,351 for Maori and non-Maori respectively. Non-Maori tended to have long lengths of stay in their last year of life, and non-Maori men had the highest proportion with high costs and long lengths of stay in care homes. Costs in the last year of life were 8.1 times higher in comparison to costs for individuals who did not die in the same time period. CONCLUSION: Despite New Zealand's commitment to providing an equitable level of healthcare, this study illustrated that ethnic and gender disparities are still apparent at the end of life. This raises questions as to whether money at the end of life is being spent appropriately, and how it could potentially be more equitably targeted to meet the diverse needs of older people and their families.
Assuntos
Hospitalização , Pacientes Internados , Idoso , Estudos de Coortes , Humanos , Estudos Longitudinais , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico , Nova Zelândia/epidemiologiaRESUMO
Adequate nutritional status may influence progression to frailty. The purpose of this study is to determine the prevalence of frailty and examine the relationship between dietary protein intake and the transition between frailty states and mortality in advanced age. We used data from a longitudinal cohort study of Maori (80-90 years) and non-Maori (85 years). Dietary assessments (24-h multiple pass dietary recalls) were completed at the second year of follow-up (wave 2 and forms the baseline in this study). Frailty was defined using the Fried Frailty criteria. Multi-state modelling examined the association of protein intake and transitions between frailty states and death over four years. Over three quarters of participants were pre-frail or frail at baseline (62% and 16%, respectively). Those who were frail had a higher co-morbidity (p < 0.05), where frailty state changed, 44% showed a worsening of frailty status (robust â pre-frail or pre-frail â frail). Those with higher protein intake (g/kg body weight/day) were less likely to transition from robust to pre-frail [Hazard Ratio (95% Confidence Interval): 0.28 (0.08-0.91)] but also from pre-frail to robust [0.24 (0.06-0.93)]. Increased protein intake was associated with lower risk of transitioning from pre-frailty to death [0.19 (0.04-0.80)], and this association was moderated by energy intake [0.22 (0.03-1.71)]. Higher protein intake in this sample of octogenarians was associated with both better and worse outcomes.
Assuntos
Envelhecimento , Proteínas Alimentares/administração & dosagem , Idoso Fragilizado , Fragilidade/fisiopatologia , Estado Nutricional , Deficiência de Proteína/fisiopatologia , Fatores Etários , Idoso de 80 Anos ou mais , Envelhecimento/etnologia , Comorbidade , Feminino , Fragilidade/diagnóstico , Fragilidade/etnologia , Avaliação Geriátrica , Humanos , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico , Nova Zelândia/epidemiologia , Avaliação Nutricional , Estado Nutricional/etnologia , Prevalência , Deficiência de Proteína/diagnóstico , Deficiência de Proteína/etnologia , Recomendações Nutricionais , Medição de Risco , Fatores de RiscoRESUMO
BACKGROUND: Long-term residential care (LTC) supports the most vulnerable and is increasingly relevant with demographic ageing. This study aims to describe entry to LTC and identify predictive factors for older Maori (indigenous people of New Zealand) and non-Maori. METHODS: LiLACS-NZ cohort project recruited Maori and non-Maori octogenarians resident in a defined geographical area in 2010. This study used multivariable log-binomial regressions to assess factors associated with subsequent entry to LTC including: self-identified ethnicity, demographic characteristics, self-rated health, depressive symptoms and activities of daily living [ADL] as recorded at baseline. LTC entry was identified from: place of residence at LiLACS-NZ interviews, LTC subsidy, needs assessment conducted in LTC, hospital discharge to LTC, and place of death. RESULTS: Of 937 surveyed at baseline (421 Maori, 516 non-Maori), 77 already in LTC were excluded, leaving 860 participants (mean age 82.6 +/- 2.71 years Maori, 84.6 +/- 0.52 years non-Maori). Over a mean follow-up of 4.9 years, 278 (41% of non-Maori, 22% of Maori) entered LTC; of the 582 who did not, 323 (55%) were still living and may yet enter LTC. In a model including both Maori and non-Maori, independent risks factors for LTC entry were: living alone (RR = 1.52, 95%CI:1.15-2.02), self-rated health poor/fair compared to very good/excellent (RR = 1.40, 95%CI:1.12-1.77), depressive symptoms (RR = 1.28, 95%CI:1.05-1.56) and more dependent ADLs (RR = 1.09, 95%CI:1.05-1.13). For non-Maori compared to Maori the RR was 1.77 (95%CI:1.39-2.23). In a Maori-only model, predictive factors were older age and living alone. For non-Maori, factors were dependence in more ADLs and poor/fair self-rated health. CONCLUSIONS: Non-Maori participants (predominantly European) entered LTC at almost twice the rate of Maori. Factors differed between Maori and non-Maori. Potentially, the needs, preferences, expectations and/or values may differ correspondingly. Research with different cultural/ethnic groups is required to determine how these differences should inform service development.
Assuntos
Atividades Cotidianas , Havaiano Nativo ou Outro Ilhéu do Pacífico , Idoso , Idoso de 80 Anos ou mais , Envelhecimento , Estudos de Coortes , Humanos , Nova Zelândia/epidemiologiaRESUMO
Protein intake, food sources and distribution are important in preventing age-related loss of muscle mass and strength. The prevalence and determinants of low protein intake, food sources and mealtime distribution were examined in 214 Maori and 360 non-Maori of advanced age using two 24 h multiple pass recalls. The contribution of food groups to protein intake was assessed. Low protein intake was defined as ≤0.75 g/kg for women and ≤0.86 g/kg for men. A logistic regression model was built to explore predictors of low protein intake. A third of both women (30.9%) and men (33.3%) had a low protein intake. The main food group sources were beef/veal, fish/seafood, milk, bread though they differed by gender and ethnicity. For women and men respectively protein intake (g/meal) was lowest at breakfast (10.1 and 13.0), followed by lunch (14.5 and 17.8) and dinner (23.3 and 34.2). Being a woman (p = 0.003) and having depressive symptoms (p = 0.029) were associated with consuming less protein. In adjusted models the odds of adequate protein intake were higher in participants with their own teeth or partial dentures (p = 0.036). Findings highlight the prevalence of low protein intake, uneven mealtime protein distribution and importance of dentition for adequate protein intake among adults in advanced age.
Assuntos
Proteínas Alimentares/administração & dosagem , Fenômenos Fisiológicos da Nutrição do Idoso/fisiologia , Inquéritos Nutricionais , Estado Nutricional , Fatores Etários , Idoso de 80 Anos ou mais , Estudos de Coortes , Estudos Transversais , Dentição , Depressão/etiologia , Feminino , Humanos , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico , Nova Zelândia , Necessidades Nutricionais , Sarcopenia/etiologia , Fatores Socioeconômicos , Inquéritos e QuestionáriosRESUMO
INTRODUCTION Many countries, including New Zealand, have an aging population and new technologies such as cell phones may be useful for older people. AIM To examine cell phone and technology use by octogenarians. METHODS Te Puawaitanga O Nga Tapuwae Kia Ora Tonu- Life and Living in Advanced Age: A Cohort Study In New Zealand (LILACs NZ) cohort study data of Maori (aged 80-90 years, 11-year age band) and non-Maori (aged 85 years, 1-year age band) followed for 3 years was used to describe the prevalence among study participants of the use of the internet, cell phones and watching pay-per-view television. Association of these activities with living arrangement, congestive heart failure, chronic obstructive respiratory disease and participants' cognition were examined. RESULTS Technology use was relatively low among study octogenarians. Fewer Maori used cell phones and the internet (16% and 6%) than non-Maori (30% and 19%). Maori participants supported only by a pension were less likely to use cell phones than Maori with more income. More men watched pay-per-view television (e.g. SKY) than women. Living alone and having chronic lung disease were associated with not watching pay-per-view television. Participants who used the internet had higher cognition scores than others. Non-Maori women were less likely to watch pay-per-view television and non-Maori on a pension only were less likely to watch pay-per-view television than people on a higher income. Participants who lived alone were less likely to watch pay-per-view. CONCLUSION Relatively low use of technology may limit potential for health technology innovation for people of advanced age. Socioeconomic and ethnic disparities will amplify this.
Assuntos
Telefone Celular/estatística & dados numéricos , Internet/estatística & dados numéricos , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Televisão/estatística & dados numéricos , Idoso de 80 Anos ou mais , Transtornos Cognitivos/etnologia , Feminino , Insuficiência Cardíaca/etnologia , Humanos , Masculino , Nova Zelândia/epidemiologia , Doença Pulmonar Obstrutiva Crônica/etnologia , Fatores Sexuais , Fatores Socioeconômicos , Televisão/instrumentaçãoRESUMO
BACKGROUND: Understanding falls risk in advanced age is critical with people over 80 a rapidly growing demographic. Slow gait and cognitive complaint are established risk factors and together comprise the Motoric Cognitive Risk Syndrome (MCR). This study examined trajectories of gait and cognition and their association with falls over 5 years, and documented MCR in Maori and non-Maori of advanced age living in New Zealand. METHOD: Falls frequency was ascertained retrospectively at annual assessments. 3 m gait speed was measured and cognition was assessed using the Modified Mini-Mental Status Examination (3MS). Frequency of MCR was reported. Gait and cognition trajectories were modelled and clusters identified from Latent Class Analysis. Generalised linear models examined association between changes in gait, cognition, MCR and falls. RESULTS: At baseline, 138 of 408 Maori (34%) and 205 of 512 non-Maori (40%) had fallen. Mean (SD) gait speed (m/s) for Maori was 0.66 (0.29) and 0.82 (0.26) for non-Maori. Respective 3MS scores were 86.2 (15.6) and 91.6 (10.4). Ten (4.3%) Maori participants met MCR criteria, compared with 7 (1.9%) non-Maori participants. Maori men were more likely to fall (OR 1.56; 95% CI 1.0-2.43 (P = 0.04) whilst for non-Maori slow gait increased falls risk (OR 0.40; 95% CI 0.24-0.68(P < 0.001). Non-Maori with MCR were more than twice as likely to fall than those without MCR (OR 2.45; 95% CI 1.06-5.68 (P = 0.03). CONCLUSIONS: Maori and non-Maori of advanced age show a mostly stable pattern of gait and cognition over time. Risk factors for falls differ for Maori, and do not include gait and cognition.
Assuntos
Acidentes por Quedas , Envelhecimento , Cognição , Marcha , Acidentes por Quedas/prevenção & controle , Acidentes por Quedas/estatística & dados numéricos , Idoso de 80 Anos ou mais , Estudos de Coortes , Feminino , Humanos , Masculino , Nova Zelândia/epidemiologia , Estudos RetrospectivosRESUMO
OBJECTIVE: This study investigates sex and ethnicity in relationships of care using data from Wave 4 of LiLACS NZ, a longitudinal study of Maori and non-Maori New Zealanders of advanced age. METHODS: Informal primary carers for LiLACS NZ participants were interviewed about aspects of caregiving. Data were analysed by gender and ethnic group of the LiLACS NZ participant. RESULTS: Carers were mostly adult children or partners, and three-quarters of them were women. Maori and men received more hours of care with a higher estimated dollar value of care. Maori men received the most personal care and household assistance. Carer employment, self-rated health, quality of life and impact of caring did not significantly relate to the gender and ethnicity of care recipients. CONCLUSIONS: Gender and ethnicity are interwoven in caregiving and care receiving. Demographic differences and cultural expectations in both areas must be considered in policies for carer support.
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Envelhecimento/etnologia , Cuidadores/estatística & dados numéricos , Etnicidade , Havaiano Nativo ou Outro Ilhéu do Pacífico , Avaliação de Resultados em Cuidados de Saúde , Idoso , Idoso de 80 Anos ou mais , Cuidadores/psicologia , Características Culturais , Feminino , Avaliação Geriátrica , Humanos , Entrevistas como Assunto , Estudos Longitudinais , Masculino , Nova Zelândia , Fatores Sexuais , Fatores SocioeconômicosRESUMO
OBJECTIVES: To identify determinants of incident malnutrition in community-dwelling older adults. DESIGN: Meta-analysis of 6 community-based longitudinal datasets with follow-up of 1 to 3 years. SETTING: Datasets from MaNuEL (MalNutrition in the Elderly) partners were included: 3 studies from Germany and 1 each from Ireland, the Netherlands, and New Zealand. PARTICIPANTS: community-dwelling adults aged 65 and older (N=4,844). MEASUREMENT: The same definition of incident malnutrition was used for all cohorts (body mass index < 20.0 kg/m2 at follow-up or weight loss ≥10 % between baseline and follow-up). Twenty-one potential baseline determinants from 7 domains (demographic, nutritional, lifestyle, social, psychological, physical functioning, medical) and 2 follow-up variables (hospitalization, falls) were harmonized for all studies. Binary logistic regression analyses were performed to assess the association between each variable, adjusted for specific confounders, and incident malnutrition. Combined odds ratios (ORs) with 95% confidence intervals (CIs) were calculated using random-effects meta-analyses. RESULTS: Studies included between 209 and 1,841 participants without malnutrition at baseline; mean age ranged from 71.7 to 84.6. Incidence of malnutrition varied from 5.1% and 17.2%. Meta-analyses identified 6 variables as independent determinants of incident malnutrition; with increasing age, the risk of developing malnutrition increased continuously. Unmarried, separated, or divorced participants were more likely to develop malnutrition than married participants, whereas no association was found for widowed participants. Participants with difficulty walking (OR=1.41, 95% CI=1.06-1.89) or difficulty climbing stairs (OR=1.45, 95% CI=1.14-1.85) and those who were hospitalized before baseline (OR=1.49, 95% CI=1.25-1.76) and during follow-up (OR=2.02, 95% CI=1.41-2.88) had higher odds of incident malnutrition. CONCLUSION: In this harmonized meta-analysis based on prospective data of older, community-dwelling adults, age, marital status, limitations with walking and climbing stairs, and hospitalization were identified as determinants of incident malnutrition. J Am Geriatr Soc 66:2335-2343, 2018.
Assuntos
Índice de Massa Corporal , Hospitalização , Vida Independente/estatística & dados numéricos , Desnutrição/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Europa (Continente)/epidemiologia , Feminino , Humanos , Incidência , Estudos Longitudinais , Masculino , Nova Zelândia/epidemiologia , Estudos Prospectivos , Fatores de RiscoRESUMO
Advanced-age adults may be at risk of iron, folate, and vitamin B12 deficiency due to low food intake and poor absorption. This study aimed to investigate the intake and adequacy of iron, folate, and vitamin B12 and their relationship with respective biomarker status. Face-to-face interviews with 216 Maori and 362 non-Maori included a detailed dietary assessment using 2 × 24-h multiple pass recalls. Serum ferritin, serum iron, total iron binding capacity, transferrin saturation, red blood cell folate, serum folate, serum vitamin B12 and hemoglobin were available at baseline. Regression techniques were used to estimate the association between dietary intake and biomarkers. The Estimated Average Requirement (EAR) was met by most participants (>88%) for dietary iron and vitamin B12 (>74%) but less than half (>42%) for folate. Increased dietary folate intake was associated with increased red blood cell (RBC) folate for Maori (p = 0.001), non-Maori (p = 0.014) and serum folate for Maori (p < 0.001). Folate intake >215 µg/day was associated with reduced risk of deficiency in RBC folate for Maori (p = 0.001). Strategies are needed to optimize the intake and bioavailability of foods rich in folate. There were no significant associations between dietary iron and vitamin B12 intake and their respective biomarkers, serum iron and serum vitamin B12.
Assuntos
Ácido Fólico/administração & dosagem , Ferro da Dieta/administração & dosagem , Estado Nutricional , Vitamina B 12/administração & dosagem , Idoso de 80 Anos ou mais , Biomarcadores/sangue , Estudos de Coortes , Feminino , Humanos , Longevidade , Masculino , Havaiano Nativo ou Outro Ilhéu do Pacífico , Nova ZelândiaRESUMO
AIMS: To examine direct and indirect pathways between visual and cognitive function in advanced age. METHODS: We analysed cross-sectional baseline data from Life and Living in Advanced Age: A Cohort Study in New Zealand, which recruited equal sample sizes of Maori (n=421) and non-Maori (n=516) octogenarians. The Modified Mini-Mental State Examination assessed cognitive function. Vision was assessed with self-report and measured distance visual acuity. Associations between visual and cognitive function were explored using general linear models and structural equation modelling. RESULTS: Both Maori (mean age 82) and non-Maori (mean age 85) had good visual acuity [Maori: mean (standard deviation) 0.18 (0.20) logMAR; non-Maori 0.20 (0.17) logMAR] and cognitive function scores [Maori: median (interquartile range) 3MS=90 (11), non-Maori: 94 (8)]. Self-reported visual impairment was present almost 25% of the sample. Adjusting for confounders, no direct association was found between visual and cognitive function. For non-Maori, the path diagram showed the association between vision loss, and cognitive function was mediated by functional status. CONCLUSION: Findings indicate that cognitive function is a multifactorial entity; rather than a direct effect of vision loss, mediating factors appear to contribute to cognitive decline in advanced age.
Assuntos
Envelhecimento , Cognição , Transtornos da Visão/fisiopatologia , Acuidade Visual , Idoso de 80 Anos ou mais , Estudos Transversais , Feminino , Humanos , Modelos Lineares , Estudos Longitudinais , Masculino , Análise Multivariada , Havaiano Nativo ou Outro Ilhéu do Pacífico , Nova Zelândia , Classe Social , Inquéritos e QuestionáriosRESUMO
A high prevalence of undernutrition has previously been reported in indigenous Maori (49 %) and non-Maori (38 %) octogenarians and may be associated with risk of micronutrient deficiencies. We examined vitamin and mineral intakes and the contributing food sources among 216 Maori and 362 non-Maori participating in Life and Living to Advanced age a Cohort Study in New Zealand, using a repeat 24-h multiple-pass recall. More than half of the Maori and non-Maori participants had intakes below the estimated average requirement from food alone for Ca, Mg and Se. Vitamin B6 (Maori women only), folate (women only), vitamin E (Maori women; all men) and Zn (men only) were low in these ethnic and sex subgroups. Women had intakes of higher nutrient density in folate, vitamin C, Ca, Mg, K, vitamin A (non-Maori) and ß-carotene (Maori) compared with men (P<0·05). When controlling for age and physical function, ß-carotene, folate, vitamin C, Ca and Mg were no longer significantly different, but vitamins B2, B12, E and D, Fe, Na, Se and Zn became significantly different for Maori between men and women. When controlling for age and physical function, vitamins A and C and Ca were no longer significantly different, but vitamin B2, Fe, Na and Zn became significantly different for non-Maori between men and women. For those who took nutritional supplements, Maori were less likely to be deficient in food alone intake of vitamin A, folate and Mg, whereas non-Maori were less likely to be deficient in intakes of Mg, K and Zn, but more likely to be deficient in vitamin B12 intake. A lack of harmonisation in nutrient recommendations hinders the interpretation of nutrient adequacy; nonetheless, Ca, Mg and Se are key micronutrients of concern. Milk and cheese were important contributions to Ca intake, whereas bread was a key source of Mg and Se. Examination of dietary intake related to biochemical status and health outcomes will establish the utility of these observations.
RESUMO
As part of the 12-month follow-up of the longitudinal cohort study, Life and Living in Advanced Age: A Cohort Study in New Zealand, dietary intake was assessed in 216 Maori and 362 non-Maori octogenarians using repeat 24-h multiple pass recalls. Energy and macronutrient intakes were calculated, and food items reported were allocated to food groups used in the New Zealand Adult Nutrition Survey (NZANS). Intakes were compared with the nutrient reference values (NRV) for Australia and New Zealand. The median BMI was higher for Maori (28·3 kg/m2) than for non-Maori (26·2 kg/m2) P=0·007. For Maori, median energy intake was 7·44 MJ/d for men and 6·06 MJ/d for women with 16·3 % energy derived from protein, 43·3 % from carbohydrate and 38·5 % from fat. Median energy intake was 7·91 and 6·26 MJ/d for non-Maori men and women, respectively, with 15·4 % of energy derived from protein, 45 % from carbohydrate and 36·7 % from fat. For both ethnic groups, bread was the top contributor to energy and carbohydrate intakes. Protein came from beef and veal, fish and seafood, bread, milk and poultry with the order differing by ethnic groups and sex. Fat came mainly from butter and margarine. Energy-adjusted protein was higher for Maori than non-Maori (P=0·049). For both ethnic groups, the median energy levels were similar, percent carbohydrate tended to be lower and percent fat higher compared with adults aged >70 years in NZANS. These unique cross-sectional data address an important gap in our understanding of dietary intake in this growing section of our population and highlight lack of age-appropriate NRV.