Nutritional status and associated factors among the elderly in Guinea: a first national cross-sectional study.

Aging of the Guinean population is a public health concern for the coming years, and the nutritional status of older people is virtually unknown. We also know that this population is growing and that undernutrition and obesity can affect the health of older adults. This study aimed to assess the nutritional status of older people in the general population of Guinea and its associated factors. A representative cross-sectional survey was conducted using sociodemographic, clinical, and anthropometric data (weight and height). Oral status was assessed by using the University of Nebraska Oral Status Scale. Visual acuity was assessed using the Monoyer scale. The standardized prevalence ratio (SPR) of the nutritional status was calculated for each region. The sample included 1698 subjects with a mean BMI of 22.6 ± 4.3 kg/m2. A total of 50.3% had impaired oral status and 20.3% had moderately to severely impaired visual acuity. The prevalence of undernutrition was 14.4% and of obesity 5.7%. Differences in the prevalence of nutritional status were found between regions, with an SPR > 1 for undernutrition in the Labé region (SPR 1.9, 95% CI = 1.5-2.5) and for obesity in the Conakry and Kindia regions (SPR of 2.90, 95% CI = 2.0-4.05 and 2.32, 95% CI = 1.5-3.3, respectively). In Guinea, The prevalence of nutritional disorders was approximately 20%. Screening and management of the health and nutritional status of older adults should be a national priority, and management should be adapted to each region of the country.

[Causes of undernutrition and how to look for them in general practice]. / Causes d'une dénutrition et comment les rechercher en médecine générale.

CAUSES OF UNDERNUTRITION AND HOW TO LOOK FOR THEM IN GENERAL PRACTICE Nutritional imbalance leading to undernutrition is found in 3 situations: in the absence of disease (related to hunger or to socio- economic or psychological problems), related to a disease without inflammation, or to a disease with acute or chronic inflammation. These situations can lead to a reduction in food intake and in digestive absorption, and an increase in energy expenditure and in protein catabolism. In general practice, when faced with unexplained and/or isolated weight loss, whether voluntary or not, it is essential to look for an etiology. Intake can easily be evaluated using a visual or verbal analogical scale, the SEFI (Self-Evaluation of Food Intake). A biological check-up and digestive explorations can also orient the physician towards the cause of this weight loss or undernutrition. There is always a cause for weight loss and the general practitioner is a key player in finding this cause as early as possible.

CAUSES D'UNE DÉNUTRITION ET COMMENT LES RECHERCHER EN MÉDECINE GÉNÉRALE Le déséquilibre nutritionnel entraînant une dénutrition est retrouvé dans trois situations : en l'absence de maladie (lié à la faim ou à des problèmes socio-économiques ou psychologiques), lié à une maladie sans inflammation ou lié à une maladie avec inflammation aiguë ou chronique. Ces situations peuvent être à l'origine d'une réduction de la prise alimentaire et de l'absorption digestive, et d'une augmentation de la dépense énergétique et du catabolisme protéique. En médecine générale, devant une perte de poids inexpliquée et/ou isolée, volontaire ou non, il est donc indispensable d'en rechercher la cause. Les ingesta peuvent facilement être évalués à l'aide d'une échelle visuelle ou verbale analogique, le score d'évaluation facile des ingesta (SEFI). Un bilan biologique initial et des explorations digestives peuvent aussi orienter le praticien vers la cause de cette perte pondérale, voire de cette dénutrition. Il existe toujours une cause à une perte pondérale, et le médecin généraliste est un acteur clé pour la rechercher le plus précocement possible.

Management of Central Venous Catheters in Children and Adults on Home Parenteral Nutrition: A French Survey of Current Practice.

Although central venous catheter (CVC)-related thrombosis (CRT) is a severe complication of home parenteral nutrition (HPN), the amount and quality of data in the diagnosis and management of CRT remain low. We aimed to describe current practices regarding CVC management in French adult and pediatric HPN centers, with a focus on CVC obstruction and CRT. Current practices regarding CVC management in patients on HPN were collected by an online-based cross-sectional survey sent to expert physicians of French HPN centers. We compared these practices to published guidelines and searched for differences between pediatric and adult HPN centers' practices. Finally, we examined the heterogeneity of practices in both pediatric and adult HPN centers. The survey was completed by 34 centers, including 21 pediatric and 13 adult centers. We found a considerable heterogeneity, especially in the responses of pediatric centers. On some points, the centers' responses differed from the current guidelines. We also found significant differences between practices in adult and pediatric centers. We conclude that the management of CVC and CRT in patients on HPN is a serious and complex situation for which there is significant heterogeneity between HPN centers. These findings highlight the need for more well-designed clinical trials in this field.

The hypometabolic state: a good predictor of a better prognosis in amyotrophic lateral sclerosis.

BACKGROUND: Malnutrition and weight loss are negative prognostic factors for survival in patients with amyotrophic lateral sclerosis (ALS). However, energy expenditure at rest (REE) is still not included in clinical practice, and no data are available concerning hypometabolic state in ALS. OBJECTIVE: To evaluate in a referral cohort of patients with ALS the prevalence of hypometabolic state as compared with normometabolic and hypermetabolic states, and to correlate it with clinical phenotype, rate of progression and survival. DESIGN: We conducted a retrospective study examining REE measured by indirect calorimetry in patients with ALS referred to Milan, Limoges and Tours referral centres between January 2011 and December 2017. Hypometabolism and hypermetabolism states were defined when REE difference between measured and predictive values was ≤-10% and ≥10%, respectively. We evaluated the relationship between these metabolic alterations and measures of body composition, clinical characteristics and survival. RESULTS: Eight hundred forty-seven patients with ALS were recruited. The median age at onset was 63.79 years (IQR 55.00-71.17). The male/female ratio was 1.26 (M/F: 472/375). Ten per cent of patients with ALS were hypometabolic whereas 40% were hypermetabolic. Hypometabolism was significantly associated with later need for gastrostomy, non-invasive ventilation and tracheostomy placement. Furthermore, hypometabolic patients with ALS significantly outlived normometabolic (HR=1.901 (95% CI 1.080 to 3.345), p=0.0259) and hypermetabolic (HR=2.138 (95% CI 1.154 to 3.958), p=0.0157) patients. CONCLUSION: Hypometabolism in ALS is not uncommon and is associated with slower disease progression and better survival than normometabolic and hypermetabolic subjects. Indirect calorimetry should be performed at least at time of diagnosis because alterations in metabolism are correlated with prognosis.

Degradation of skeletal mass in locally advanced oesophageal cancer between initial diagnosis and recurrence.

BACKGROUND: The prognostic value of a low skeletal mass index (SMI) has been investigated in locally advanced oesophageal (LAE) cancer at diagnosis. However, nothing is known about its evolution and clinical impact between initial diagnosis and recurrence. METHODS: A total of 89 patients treated for LAE cancer between January 2009 and December 2019 were included in this study. Computed tomography (CT) scans before treatment and at recurrence were evaluated. SMI and other body composition parameters were analysed by the L3 scan method. RESULTS: Participants were aged 66.0 (36.0-86) years. The incidence of low SMI increased by 12.3% between diagnosis and recurrence (70.7% vs. 83.0%, respectively) over a median follow-up of 16.9 (1.7-101.6) months. Patients with high SMI at diagnosis showed loss of muscle mass (58.0 vs. 55.2 cm2/m2, respectively; P < 0.001) and decreased body mass index (BMI) (27.9 vs. 26.3 kg/m2, respectively; P = 0.05), but fat mass was increased (68.9 vs. 72.0 cm2/m2, respectively; P = 0.01). Patients with low SMI at diagnosis showed no significant changes in body composition parameters and no improvement of SMI, even with nutritional support. Low SMI (hazard ratio [HR]: 1.8; 95% confidence interval [CI]: 1.02-3.16) was an independent predictor (P = 0.041) of high nutritional risk index (HR: 1.79; 95% CI: 1.03-3.11; P = 0.039) at diagnosis. CONCLUSIONS: The percentage of patients with a low SMI increased during follow-up. Our data suggest that an assessment of skeletal muscle parameters and nutrition support may be more useful in patients with a high SMI.

Nutritional status and associated factors among community-dwelling elderly.

BACKGROUND AND AIMS: Although the ageing of the Cameroonian population is a public health issue in the coming years, the nutritional status of the elderly is unknown. The aim of the study was to assess the nutritional status, health status and associated socio-demographic factors among elderly in Cameroon. METHODS: A cross-sectional study of 599 elderly (aged ≥ 60) was conducted in urban and rural areas. Several socio-demographic, sanitary, and anthropometric (weight, height, body mass index (BMI), Waist Circumference (WC), Mid-Upper Arm Circumference (MUAC)) data were collected. Nutritional status was defined according to WHO. Multinomial analysis was performed to identify factors associated with nutritional status. The threshold of statistical significance was 5%. RESULTS: The population, representative of the elderly, was aged 68.9 ± 7.2 years, with sex ratio M/F = 0.93, weight 68.5 ± 14.7 kg, BMI 24.7 ± 5.3, WC 90.1 ± 12.8 cm and MUAC 28.2 ± 5.0 cm. According to BMI, undernutrition was 19.7%, normal status 37.9%, overweight 24.9%, obesity 17.5%. The concordance for undernutrition between BMI and MUAC was weak (kappa = 0.3). In multinomial analysis, only no medication was negatively associated with undernutrition (OR = 0.3). Obesity was positively associated with the urban environment (OR = 4.8) and inactivity (OR = 2.9) and negatively associated with male gender (OR = 0.4), widowed (OR = 0.2), head of household (OR = 0.4), no income (OR = 0.3), one pathology (OR = 0.4), no medication (OR = 0.2), having normal diastolic pressure (OR = 0.2). CONCLUSIONS: Undernutrition and obesity (more frequent in women, and in urban area) affect 37.2% of the elderly. These nutritional disorders are a public health problem that cannot be ignored.

Associations between dental problems and underweight status among rural women in Burkina Faso: results from the first WHO Stepwise Approach to Surveillance (STEPS) survey.

OBJECTIVE: To explore the relationships between dental problems and underweight status among rural women in Burkina Faso by using nationally representative data. DESIGN: This was a cross-sectional secondary study of primary data obtained by the 2013 WHO Stepwise Approach to Surveillance survey conducted in Burkina Faso. Descriptive and analytical analyses were performed using Student's t test, ANOVA, the χ2 test, Fisher's exact test and logistic regression. SETTING: All thirteen Burkinabè regions were categorised using quartiles of urbanisation rates. PARTICIPANTS: The participants were 1730 rural women aged 25-64 years. RESULTS: The prevalence of underweight was 16·0 %, and 24·1 % of participants experienced dental problems during the 12-month period. The women with dental problems were more frequently underweight (19·9 % and 14·7 %; P < 0·05) and had a lower mean BMI (21·1 ± 3·2 and 21·6 ± 3·7 kg/m2, P < 0·01) than those without dental problems. More risk factors for underweight were observed in less urbanised regions among elderly individuals (> 49 years old) and smokeless tobacco users. Age > 49 years, professions with inconsistent income, a lack of education, smokeless tobacco use and low BMI were factors that were significantly associated with dental problems, while residency in a low-urbanisation area was a protective factor. CONCLUSION: The prevalence of underweight in rural Burkinabè women is among the highest in sub-Saharan Africa, and women with dental problems are more frequently affected than those without dental problems. Public health measures for the prevention of these disorders should specifically target women aged over 49 years and smokeless tobacco users.

Guidelines on Standard and Therapeutic Diets for Adults in Hospitals by the French Association of Nutritionist Dieticians (AFDN) and the French Speaking Society of Clinical Nutrition and Metabolism (SFNCM).

AIM: Hospital food provision is subject to multiple constraints (meal production, organization, health safety, environmental respect) which influence the meal tray offered to the patient. Multiple diets can add complexity and contribute to non-consumption of the meal. To avoid undernutrition, it appeared necessary to propose guidelines for foods and diets in hospitals. METHODS: These guidelines were developed using the Delphi method, as recommended by the HAS (French Health Authority), based on a formal consensus of experts and led by a group of practitioners and dieticians from the AFDN (French Association of Nutritionist Dieticians) and SFNCM (French Society of Clinical Nutrition and Metabolism). RESULTS: Twenty-three recommendations were deemed appropriate and validated by a panel of 50 national experts, following three rounds of consultations, modifications and final strong agreement. These recommendations aim to define in adults: 1-harmonized vocabulary related to food and diets in hospitals; 2-quantitative and qualitative food propositions; 3-nutritional prescriptions; 4-diet patterns and patient adaptations; 5-streamlining of restrictions to reduce unnecessary diets and without scientific evidence; 6-emphasizing the place of an enriched and adapted diet for at-risk and malnourished patients. CONCLUSION: These guidelines will enable catering services and health-care teams to rationalize hospital food and therapeutic food prescriptions in order to focus on individual needs and tasty foods. All efforts should be made to create meals that follow these recommendations while promoting the taste quality of the dishes and their presentation such that the patient rediscovers the pleasure of eating in the hospital.

Nutritional status, dementia, and mobility among nursing home's residents: First exhaustive cross-sectional study in Limousin territory (France).

BACKGROUND: Aging is accompanied by a drop in the level of health and autonomy, within Western countries more and more people being cared for in nursing homes (NH). The nutritional data in NH in France remain poor, not exhaustive and not representative. The objective of the study was to assess the nutritional status, dementia and mobility patterns among residents of NH in the Limousin territory of France. METHODS: The study was cross-sectional, descriptive and exhaustive, conducted with the residents of 13 voluntary NH. Undernutrition was identified using French High Authority for Health criteria, and obesity if Body Mass Index >30, in the absence undernutrition criterion. The Mini Mental State examination scores was used for dementia assessment at the threshold of 24. The Mini Nutritional AssessmentTM was used for mobilitity assessment. The statistics were significant at the 5% threshold. RESULTS: 866 residents (70.6% women) included with an average age of 85.3 ± 9.3 years. Undernutrition was 27.5%, obesity 22.9%, dementia 45.7% and very low mobility 68.9%. Women were older than men, more often undernourished, more often demented and more often had very low mobility (p<0.01). Undernutrition (p<0.0001) and low mobility (p<0.0001) were significantly higher among those with dementia versus those without dementia. Very low mobility was higher among undernourished (p<0.05). CONCLUSIONS: Undernutrition and obesity are important problems in NH in France. Being a woman, having dementia and having a very low mobility may induce undernutrition.

Hypermetabolism is a reality in amyotrophic lateral sclerosis compared to healthy subjects.

RATIONALE: Hypermetabolism (HM) in Amyotrophic lateral sclerosis (ALS) is the reflection of a high energy metabolic level, but this alteration seems controversial. The main objective of the study was to confirm the existence of HM during ALS compared to healthy subjects. METHODS: A cohort of ALS patients was compared to a control group without metabolic disorder. The assessment included anthropometric criteria measurements, body composition by bioelectric impedance analysis and resting energy expenditure (REE) by indirect calorimetry. HM was defined as a variation > +10% between measured and calculated REE. Statistical analysis used Mann-Withney and Chi2 tests. Multivariate analysis included logistic regression. RESULTS: 287 patients and 75 controls were included. The metabolic level was higher in ALS patients (1500 kcal/24 h [1290-1693] vs. 1230 kcal/24 h [1000-1455], p < 0.0001) as well as the REE/fat free mass ratio (33.5 kcal/kg/24 h [30.4-37.8] vs. 28.3 kcal/kg/24 h [26.1-33.6], p < 0.0001). 55.0% of ALS patients had HM vs. 13.3% of controls (p < 0.0001). HM was strongly and positively associated with ALS (OR = 9.50 [4.49-20.10], p < 0.0001). CONCLUSIONS: HM in ALS is a reality, which affects more than half of the patients and is associated with ALS. This work confirms a very frequent metabolic deterioration during ALS. The identification of HM can allow a better adaptation of the patients' nutritional intake.

Increased resting energy expenditure compared with predictive theoretical equations in amyotrophic lateral sclerosis.

OBJECTIVES: Approximately 50% to 60% of amyotrophic lateral sclerosis (ALS) is characterized by an increase in metabolic rate. The Harris and Benedict (HB) 1919 formula is the equation mainly used to calculate resting energy expenditure (cREE) compared with measured REE (mREE) by indirect calorimetry (IC), but other formulas are also applied in current practice. The present study aimed to assess mREE in patients with ALS compared with 12 cREE formulas and study the relevant threshold of REE variation to screen patients with a higher evolving risk. METHODS: Nutritional assessments and body composition (by bioimpedance analysis) were performed in patients with ALS. mREE was measured by IC, and cREE was calculated using the HB 1919, HB 1984, World Schofield, De Lorenzo, Johnstone, Mifflin, World Health Organization/Food and Agriculture Organization, Owen, Fleisch, Wang, Rosenbaum, and Nelson formulas. Functional and respiratory evolution and survival by log-rank test according to two thresholds of REE variation (10% and 20%) were studied. RESULTS: A total of 315 patients with ALS were included in the study. The median mREE was 1503 kcal/24 h (range, 1290-1698 kcal/24 h), which was higher than all predictive equations (P < 0.0001). Depending on the predictive equation, REE variation >10% and 20% was found in 35.2% to 76.3% and 14.6% to 53.3% of patients with ALS, respectively. Patients with an REE variation >20% with HB 1919 and HB 1984 had a lower survival. Moreover, with this same threshold and the Mifflin formula, patients had higher functional and respiratory evolutions and lower survival. CONCLUSIONS: The increase in metabolic rate is present according to the different cREE formulas used compared with IC. In clinical practice, REE formulas (e.g., HB 1919, HB 1984, or Mifflin) can be used as a reference value compared with IC to screen patients with ALS with an REE variation >20% and a higher evolving risk.

Predictive formulas for estimation of height in sub-Saharan African older people: A new formula (EPIDEMCA study).

OBJECTIVES: Chumlea's formulas are a way of predicting height from knee height (KHt), including among individuals >60 y of age who cannot stand upright. However, the formulas were developed with white and African American people and have not yet been validated in native Africans >60 y of age. The aims of the study were to assess Chumlea's formulas in older people in central Africa and to propose a new validated formula for the same population. METHODS: Height (MHt) and KHt were measured in a population of individuals >65 y of age from the Republic of Congo and the central African Republic. Predicted height (PHt) was calculated using Chumlea's formulas for the American black population (CBP) and for whites (CC). The percentages of accurate predictions (±5 cm) were compared between MHt and PHt. A new formula was estimated after randomization in a derivation sample (n = 877) and assessed for accuracy in a validation sample (n = 877). RESULTS: The study included 1754 individuals. Prediction was accurate (±5 cm) in 66.8% and 63.2% of CBP and CC, respectively. Overestimation was as high as 24.1% and 29%, respectively. Because an overestimation is unacceptable in clinical practice and population surveys, a new formula was proposed: height (cm) = 72.75 + (1.86 × KHt [cm]) - (0.13 × age [y]) + 3.41 × sex (0: women; 1: men). This new formula significantly increases accuracy (71.3%) and decreases overestimation (14.7%). The nutritional status based on body mass index did not differ with the MHt and the PHt by the new formula. CONCLUSION: Chumlea's formulas provided a poor estimate of height in this population sample. The proposed formula more accurately estimates height in older native Africans. This formula should be tested in other sub-Saharan African countries to extend its use in clinical practice and in future studies.

Vitamin D status among patients with drug-resistant and non-drug-resistant epilepsy.

Background & Aims: Epilepsy affects nearly 70 million people worldwide. Vitamin D deficiency may influence the balance of certain epilepsies. The purpose of this study was to determine the vitamin D status and anthropometric measurements of people with epilepsy (PWE), according to their pharmacosensitivity. Methods: Forty-six PWE, with or without drug resistance, underwent nutritional assessment after giving consent. Weight, body mass index (BMI), triceps skinfold thickness (TSF), fat mass (FM) and free fat mass (FFM) by bioelectrical impedance analysis were measured. Serum vitamin D was determined without supplementation. Deficiency was defined as a level < 30 ng/mL. Statistical analysis involved Student t test, ANOVA and Chi2. Results: Patients were aged 44.5 ± 14.3 years, with 60.9% of drug-resistance. BMI was 28.7 ± 7.0, 2.2% were malnourished and 30.4% obese according to the BMI. The average vitamin D level was 15.3 ± 9.9 ng/mL, with 87.0% of deficiency, and 40.0% of severe deficiency (<10 ng/mL). The TSF was higher in drug-resistant cases (p = 0.03). There was no link between drug resistance and anthropometric measurements, FM, FFM or vitamin D concentration. Conclusions: Although limited in size, this study showed that PWE are more often obese. Vitamin D deficiency is more common than in the general population, with a much higher prevalence of severe deficiency.

Predictive factors for gastrostomy at time of diagnosis and impact on survival in patients with amyotrophic lateral sclerosis.

BACKGROUND: Gastrostomy is recommended in patients with Amyotrophic Lateral Sclerosis (ALS) in the presence of weight loss over 10% as compared to usual weight, repeated aspirations or meal time duration longer than 45 min. Currently, the impact of gastrostomy on survival of ALS patients is not clear. AIMS: i) to describe diagnosis factors associated with the indication for gastrostomy ii) to evaluate survival of ALS patients with gastrostomy indication according to their acceptance of feeding tube placement. METHODS: Patients with ALS were included and followed in the ALS referral centre of Limoges's teaching hospital between 2006 and 2017. Neurological, nutritional and respiratory status was assessed prospectively from diagnosis to death. Statistical analysis was performed using Mann-Whitney test, Chi2 tests, Cox model and multivariate logistic regression. RESULTS: Two hundred and eighty-five patients were included. Among the 182 for whom gastrostomy was indicated, 63.7% accepted the placement. The median time was 7.3 months [IQR: 3.2-15.0] and 2.7 months [IQR: 0.9-5.8] respectively from diagnosis to indication and from indication to placement. Weight loss >5% significantly increased the risk of death by 17% (p < 0.0001). At time of diagnosis, bulbar onset, a loss of one point in the body mass index or on the bulbar functional scale were all positively associated with indication for gastrostomy (aOR = 10.0 [95%CI: 1.96-25.0]; p = 0.002, aOR = 1.17 [95%CI: 1.02-1.36]; p = 0.025 and aOR = 1.19 [95%CI: 1.06-1.32]; p = 0.002, respectively). However, gastrostomy placement did not have any impact on survival (aHR = 1.25 [95%CI: 0.88-1.79]; p = 0.22). CONCLUSION: Both neurological and nutritional criteria were associated with an indication for gastrostomy at diagnosis. Gastrostomy placement had no impact on survival. The study of earlier gastrostomy placement might be of interest in further prospective studies.

Resting energy expenditure equations in amyotrophic lateral sclerosis, creation of an ALS-specific equation.

INTRODUCTION: Resting energy expenditure (REE) formulas for healthy people (HP) are used to calculate REE (cREE) in amyotrophic lateral sclerosis (ALS) patients. In 50-60% of ALS cases an increase of measured REE (mREE) in indirect calometry (IC) compared to cREE is found. The aims here were (i) to assess the accuracy of cREE assessed using 11 formulas as compared to mREE and (ii) to create (if necessary) a specific cREE formula for ALS patients. METHOD: 315 Patients followed in the ALS expert center of Limoges between 1996 and 2014 were included. mREE assessed with IC and cREE calculated with 11 predictive formulas (Harris Benedict (HB) 1919, HB 1984, WSchofield, De Lorenzo, Johnstone, Mifflin, WHO/FAO, Owen, Fleisch, Wang and Rosenbaum) were determined at the time of diagnosis. Fat free mass (FFM) and fat mass (FM) were measured with impedancemetry. A Bland and Altman analysis was carried out. The percentage of accurate prediction ±10% of mREE, and intraclass correlation coefficients (ICC) were calculated. Using a derivation sample, a new REE formula was created using multiple linear regression according to sex, age, FFM and FM. Accuracy of this formula was assessed in a validation sample. RESULTS: ICC ranged between 0.60 and 0.71 (moderate agreement), and percentage of accurate prediction between 27.3% and 57.5%. Underestimation was found from 31.7% to 71.4% of cases. According to these unsatisfactory results we created an ALS-specific formula in a derivation sample (130 patients). ICC and percentage of accurate prediction increased in a validation sample (143 patients) to 0.85 (very good agreement) and 65.0% respectively, with 17.5% underestimation. CONCLUSION: REE formulas for HP underestimate REE in ALS patients compared to mREE. Our new ALS-specific formula produced better results than formulas for HP. This formula can be used to estimate REE in ALS patients if IC is not accessible.

[Food and malnutrition in the elderly]. / Alimentation et dénutrition de la personne âgée.

Food and malnutrition in the elderly. Malnutrition affects 4-10% of elderly at home, but 15-40% of them in institutions. Its consequences are multiple and sometimes severe. Knowing the risk factors often helps to prevent the onset of malnutrition. The simplest and most readily usable criteria are the body mass index (BMI) inferior 21 and weight loss (at least 5% in one month or 10% in six months). The treatment is primarily through enriched intakes by mouth and/or oral nutritional supplements, but in case of severe malnutrition with very limited intakes by mouth, enteral nutrition must be offered at the outset, if the digestive tract is usable. Parenteral nutrition is the last resort because of its dangerousness.

Alimentation et dénutrition de la personne âgée. La dénutrition touche 4 à 10 % des personnes âgées vivant à domicile, et 15 à 40 % de celles en institution. Ses conséquences sont multiples et parfois sévères. Connaître les facteurs de risque permet souvent de prévenir l'apparition de la dénutrition. Les critères les plus simples et les plus aisément utilisables sont l'indice de masse corporelle inférieur à 21 et la perte de poids (au moins 5 % en 1 mois ou 10 % en 6 mois). La prise en charge passe avant tout par des apports per os enrichis et/ou des compléments nutritionnels oraux, mais en cas de dénutrition sévère avec des apports oraux très réduits, la nutrition entérale doit être proposée d'emblée, si le tube digestif est utilisable. La nutrition parentérale constitue le dernier recours, du fait de sa dangerosité.

Validity of equations using knee height to predict overall height among older people in Benin.

OBJECTIVES: Chumlea's formulas are a validated means of predicting overall height from knee height (KH) among people >60 y of age, but, to our knowledge, no formula is validated for use in African countries, including Benin. The aim of this study was to compare height provided by predictive formulas using KH to measured height in an elderly population in Benin. METHODS: Individuals >60 y of age in Benin underwent nutritional assessment with determination of weight, body mass index (BMI), height, and KH. A Bland-Altman analysis was carried out by sex and age. The percentage of predictions accurate to ±5 cm compared with the measured height was calculated. The tested formulas were Chumlea's formulas for non-Hispanic Black people (CBP) and two formulas for use among Caucasians. RESULTS: Data from 396 individuals (81.1% male) were analyzed. The three formulas achieved 98% accuracy, but with 4.6% risk for error (±2 SD: -6 to +9 cm), which appeared to make them unfit for the whole population. Nevertheless, if a level of prediction ±5 cm is considered acceptable in clinical practice, the CBP formula achieved 83.1% accuracy. Moreover, there was no significant difference in BMI calculated with the measured and the predicted height, and the nutritional status based on BMI did not differ. CONCLUSION: CBP formulas seem applicable in 83% of cases (±5 cm) to assess the height with KH of older people in Benin and do not overestimate the prevalence of malnutrition.

Undernutrition and obesity among elderly people living in two cities of developing countries: Prevalence and associated factors in the EDAC study.

BACKGROUND: Nutritional status among elderly people living in Sub-Saharan Africa is poorly studied, even though undernutrition and obesity are known to cause many complications and are risk factors for progression and death in several diseases. The aims of this study were to assess the nutritional status of the elderly in Central Africa and to study the factors associated with nutritional disorders (undernutrition and obesity). METHODS: Two cross-sectional population-based studies were carried out in the capitals of Central African Republic (CAR) and Republic of Congo (ROC) between 2008 and 2009. Participants were aged ≥65 years old and underwent nutritional assessment including the following measurements: weight, height, body mass index (BMI), waist circumference (WC). Diet was also investigated. Nutritional status was defined according to the WHO BMI classification (<18.5 = undernutrition; ≥30 = obesity). Multinomial regression analysis was performed in order to identify factors associated with nutritional status. RESULTS: 990 elderly people underwent nutritional assessment (482 in CAR and 508 in ROC). Mean BMI was 22.7 ± 4.8 kg/m2. The prevalence of undernutrition was 19.2% and was lower in ROC than in CAR (9.5% vs. 29.5%; p < 0.0001). The prevalence of obesity was 8.8% and was higher in ROC than in CAR (14.6% vs. 2.7%; p < 0.0001). The mean WC was 85.3 ± 28.4 cm. Adjusted on study site, increasing age (OR = 1.6 [95% CI: 1.1-2.3] for 75-84 years, OR = 2.6 [95% CI: 1.4-4.8] for 85+ years), occupation as farmer/breeder (OR = 2.2 [95% CI: 1.1-4.2]), smoking (OR = 1.71 [95% CI: 1.14-2.56]) and low sugar consumption (OR = 1.7 [95% CI: 1.1-2.7]) were positively associated with undernutrition whereas only female sex was positively associated with obesity (OR = 5.0 [95% CI: 2.2-11.0]). CONCLUSIONS: The prevalence of undernutrition is high in the elderly population of these countries, in contrast to obesity. Undernutrition and obesity are associated with different socio-economic factors and food consumption. Simple nutritional advice could contribute to improving the nutritional status of elderly people in Central Africa.