Research progress of 24-hour movement behaviors in chronic non-communicable disease

Chronic non-communicable diseases(NCDs)represent a significant impediment to improve life expectancy and remain a focal point in global public health and disease prevention efforts.24-hour movement behaviors,which include sleep,sedentary behavior(SED),and physical activity,underscore the inherent connections between different daily activities and the comprehensive impact of overall movement patterns on health.Evidence suggested that modifying patterns of 24-hour movement behaviors can aid in preventing and attenuating the progression of NCDs.This study systematically delineated the concept,evolution,analytical methods,and intrinsic associations of 24-hour movement behaviors,emphasizing their pivotal role in the prevention and management of NCDs such as obesity,mental disorders,cardiovascular diseases,diabetes,and renal diseases.Future research endeavors should focus on refining methodologies,broadening study populations,developing research tools,and exploring precise intervention strategies and interdisciplinary approaches to comprehensively enhance the effectiveness of NCDs prevention and management from a temporal perspective.Such efforts are poised to provide substantive guidance and support for public health practices.

Analysis of 24-hour Monitoring of Intraocular Pressure in 1055 Eyes

Purpose:.To investigate the clinical significance of 24-hour monitoring of intraocular pressure(IOP).Methods: A total of 571 cases(1055 eyes) undergoing 24-hour monitoring of IOP in the Second People's Hospital of Zhengzhou between June 2012 and March 2013 were retrospectively analyzed.Results: Among all 1055 eyes,.298 had suspected glaucoma(28.2%); 390(37.0%) were diagnosed with glaucoma but received no treatment(312 with primary open angle glaucoma(POAG).and 78 with primary angle closure glaucoma(PACG));215(20.4%) were diagnosed with glaucoma and received medical treatment;. 132( 12. 5 %). underwent glaucoma filtration surgery;.and there were 20 others..Through 24-hour IOP monitoring,.104 among 298 cases with suspected glaucoma were diagnosed with normal tension glaucoma(NTG),.110 with POAG,.and 28 with the secondary glaucoma..Condition assessment and treatment plans were presented for 390 glaucoma cases receiving no treatment..Adjustment was made in the medical treatment of 138 eyes..Following glaucoma filtration surgery,.52 eyes received clinical advice on subsequent treatment.Conclusion: The simplified 24-hour IOP monitoring method is readily accepted by patients,.which is of great significance for providing guidance on the diagnosis of glaucoma and the assessment of the efficacy of glaucoma surgery..However,one-time 24-hour IOP monitoring is not sufficiently efficacious to make a definite diagnosis of NTG..Therefore,.long-term follow-up and repeated 24-hour IOP monitoring are required to diagnose NTG,.along with a variety of related examinations.

Associations between meeting 24-hour movement guidelines and quality of life among children and adolescents with autism spectrum disorder

Background:The Canadian 24-hour movement behavior(24-HMB)guidelines suggest that a limited amount of screen time use,an adequate level of physical activity(PA),and sufficient sleep duration are beneficial for ensuring and optimizing the health and quality of life(QoL)of children and adolescents.However,this topic has yet to be examined for children and adolescents with autism spectrum disorder(ASD)specifically.The aim of this cross-sectional observational study was to examine the associations between meeting 24-HMB guidelines and several QoLrelated indicators among a national sample of American children and adolescents with ASD.Methods:Data were taken from the 2020 U.S.National Survey of Children’s Health dataset.Participants(n=956)aged 617 years and currently diagnosed with ASD were included.The exposure of interest was adherence to the 24-HMB guidelines.Outcomes were QoL indicators,including learning interest/curiosity,repeating grades,adaptive ability,victimization by bullying,and behavioral problems.Categorical variables were described with unweighted sample counts and weighted percentages.Age,sex,race,preterm birth status,medication,behavioral treatment,household poverty level,and the educational level of the primary caregivers were included as covariates.Odds ratio(OR)and 95%confidence interval(95%CI)were used to present the strength of association between adherence to 24-HMB guidelines and QoL-related indicators.Results:Overall,452 participants(45.34%)met 1 of the 3 recommendations,216(22.65%)met 2 recommendations,whereas only 39 participants(5.04%)met all 3 recommendations.Compared with meeting none of the recommendations,meeting both sleep duration and PA recommendations(OR=3.92,95%CI:1.639.48,p<0.001)or all 3 recommendations(OR=2.11,95%CI:1.034.35,p=0.04)was associated with higher odds of showing learning interest/curiosity.Meeting both screen time and PA recommendations(OR=0.15,95%CI:0.040.61,p<0.05)or both sleep duration and PA recommendations(OR=0.24,95%CI:0.070.87,p<0.05)was associated with lower odds of repeating any grades.With respect to adaptive ability,participants who met only the PA recommendation of the 24-HMB were less likely to have difficulties dressing or bathing(OR=0.11,95%CI:0.020.66,p<0.05)than those who did not.For participants who met all 3 recommendations(OR=0.38,95%CI:0.150.99,p=0.05),the odds of being victimized by bullying was lower.Participants who adhered to both sleep duration and PA recommendations were less likely to present with severe behavioral problems(OR=0.17,95%CI:0.040.71,p<0.05)than those who did not meet those guidelines.Conclusion:Significant associations were found between adhering to 24-HMB guidelines and selected QoL indicators.These findings highlight the importance of maintaining a healthy lifestyle as a key factor in promoting and preserving the QoL of children with ASD.

Interdialytic 24-Hours Ambulatory Blood Pressure versus Dialysis Unit Blood Pressure for the Diagnosis of Electrocardiographic-Left Ventricular Hypertrophy in Chronic Hemodialysis Black Patients

Background and Aim: In hemodialysis patients, 24-hours interdialytic ABPM better detects TOD than dialysis unit blood pressure. Therefore, the present study was aimed to assess the diagnostic performance of 24-hours ABPM vs. dialysis unit BPs for the diagnosis of ECG-LVH in steady state chronic hemodialysis black patients. Methods: From March 31 to September 30, 2018, interdialytic ABPM was performed after a mid-week hemodialysis session for 24 hours using a Spacelab 90207 ABPM monitor in the non-access arm in 45 stable chronic hemodialysis black patients (age ≥ 20 years, hemodialysis for at least 3 months and informed consent) attending 3 hemodialysis centers in Kinshasa. Ambulatory BP was recorded every 20 minutes during the day (6 AM to 10 PM) and every 30 minutes during the night (10 PM to 6 AM). ECG-LVH was defined using Cornell product criteria. ROC curve method was used to assess the performance of dialysis unit BPs vs. interdialytic 24-hours ABPM in diagnosing ECG-LVH. P 0.05 defined the level of statistical significance. Results: Whatever the method of BP measurement, all the SBP values were related to ECG-LVH with similar AUC and overlapping 95% CI;however, they were not significantly different from each other. 24-hours interdialytic ambulatory SBP (AUC 0.748;95% CI 0.58 - 0.94) had the highest area under the curve. Conclusion: The present study showed that although all the two BP measurement methods equally detected ECG-LVH, 24-hours ABPM tended to have the highest diagnostic performance.

The nurses’ voice of working in a newly established community based 24-hour support center for people with psychiatric disabilities

This study explores the perceptions of a small group of nurses working at a newly established 24-hour community-based service enter (SC) for users with psychiatric disability using a qualitative approach. Since the mental health reform in Sweden in 1995 where the communities (in Sweden called municipalities) were given the responsibility to establish service and support to people with severe psychiatric disabilities, they have struggled in finding suitable forms of these kinds of areas. In 2010, this led to the creation and development of a new center aiming to provide services and support based on the expressed needs of people with physchiatric disability in a community located in southern Sweden. During 2011, a total of three group interviews were performed to capture the employed nurses’ perceptions of this newly established SC. The interview texts were analyzed by way of qualitative content analysis. A first reading of the interview texts revealed that the nurses’ perceptions of the service center were unwaveringly positive but that their beliefs about who the specific target group were differed. The main finding was summarized by the theme: Making a difference—on an individual, professional, and organizational level. The sub themes were: 24-hour availability, unclear assignment, and preventing mental illness. The findings indicate a need for a community round-the-clock service center in this Swedish community and a more clear definition of the target group.

China introduces the 24-hour rule

Recently, international movement measures that may be causing tension between the of cargo had been the subject of increasing border control needs for security and the needs for trade facilitations. On the one hand customs authorities are charged with the responsibility for policing a country＇s borders, and consequently they need to have in place measures to ensure that only legitimate trade takes place and that this trade does not present security concerns. On the other hand we have the requirements of traders, who benefit from an environment of trade facilitation with speedy and efficient movement of cargo across international borders, with minimal bureaucratic intervention. This paper focuses on and provides early discussion and comments on the possible ramifications of the introduction of the 24-hour rule in China, effective for all exports and imports of sea freight container traffic since January 1, 2009. The new rules will have significant impact on the logistics flows of exporters and importers alike. Specifically, the reporting requirements timelines are likely to result in increased costs in cargo processing at wharves that traders will have to bear; place added pressure on storage facilities at wharves, or at container depots; and may additionally increase the amount of inventory buffer because of the timing of the data reporting requirements. The paper concludes that security needs have prevailed over trade facilitation considerations and that traders should urgently implement a review of existing practices to ensure they comply with the China Customs requirements, whilst simultaneously minimizing cost increases.

The lived experience of a 24-hour support center for persons with psychiatric disabilities: Making me feel almost like an ordinary person

This study illuminates nine psychiatric disabled persons’ lived experience of a newly established community-based service center open around the clock. This new 24-hour support center (SC) was established in 2011 in a Swedish community to better match and facilitate the disabled persons’ needs. In order to illuminate the disabled person’s experiences individual interview was performed. A phenomenological-hermeneutical method inspired by Paul Ricoeur was used to interpret the texts. After a naive reading, a structural analysis revealed two themes: 1), becoming aware of myself as a person, and 2) having a lifeline and belongingness. The comprehensive understanding was interpreted as meaning “Making me feel almost like an ordinary person”, which incorporated the person’s past with their present together with a direction for the future and hope for a more fulfilling life.

Esophageal manometry and 24-hour pH monitoring in esophagus surgery:28-year Chinese experience in a single center

Objective To retrospectively review the experience of esophageal manometry and 24-hour pH monitoring in e-sophagus surgery. Methods From 1982 to 2010,patients with unspecific chest pain and undergone esophageal surgery were received esophageal manometry and 24-hour pH monitoring. Results Among the patients with

24小时眼压测量在疑似正常眼压性青光眼患者诊断的临床应用

目的:评价24h眼压测量在正常眼压性青光眼疑似患者诊断中的意义。方法:选择正常眼压性青光眼疑似患者51人(51只眼),进行24h眼压测量。结果:进入研究的51只眼中,只有18只眼(35.3%)的眼压在正常范围内且昼夜眼压波动小于6mmHg(1mmHg=0.133kPa),33只眼(64.7%)出现昼夜眼压波动过大或峰值眼压高于21mmHg。24h眼压的昼夜波动值、均值及峰值分别比门诊多次眼压高4.65mmHg、1.64mmHg及3.96mmHg,差异均具有统计学意义(P<0.001)。结论:24h眼压测量与门诊多次眼压相比,能更好地发现高眼压和昼夜眼压波动异常。

原发性闭角型青光眼小梁切除早期滤过泡形态与24h眼压的相关性

目的探讨原发性闭角型青光眼小梁切除早期滤过泡形态与24 h眼压的相关性。方法选择原发性慢性闭角型青光眼患者138例,均采用小梁切除术治疗,术后1个月对滤过泡形态进行评价,检测24 h眼压。结果不同滤过泡高度、范围、血管分布、渗漏试验等级的24 h眼压波动值差异有统计学意义(P<0.05)。微囊组与对照组24 h眼压波动值的均值、最大值、最小值、差值比较,差异有统计学意义(P<0.05)。单因素回归分析,术前眼压、滤过泡高度、滤过泡范围、滤过泡血管分布及滤过泡微囊结构与术后24 h眼压波动值相关性有统计学意义(P<0.05)。多因素回归分析,滤过泡高度、滤过泡范围分级及滤过泡微囊结构是术后24 h眼压波动值的主要相关因素(P<0.05)。结论原发性闭角型青光眼小梁切除早期滤过泡形态与术后24 h眼压有关,滤过泡高度、滤过泡范围及滤过泡微囊结构对24 h眼压的影响显著。

24h眼压监测在青光眼患者个体化用药指导中的应用

目的探讨24h眼压监测在青光眼患者个体化用药指导中的作用。方法对36例（57眼）原发性开角型青光眼,2例（3眼）正常眼压性青光眼患者行24h眼压监测,根据其眼压峰值,结合临床所用药物药效峰值时点,个体化指导用药,在出院后1个月复测24h眼压,3、6个月后再次测眼压,并随访视力、视野。结果入选患者在出院后3、6个月,眼压峰值、眼压谷值、眼压波动值、眼压均值均低于个体化用药前,差异有统计学意义（P〈0.05）,出院后3个月,34眼（56.7%）基线眼压峰值下降大于30%,26眼（43.3%）基线眼压峰值下降20%-30%;出院后6个月,41眼（68.3%）基线眼压峰值下降大于30%,19眼（31.7%）基线眼压峰值下降20%-30%。结论以患者24h眼压规律来个体化指导青光眼患者临床用药,具有个体针对性,能提高药物治疗的有效性,利于控制眼压,保护患者视功能,是一种值得推广的用药指导模式。

不同抗青光眼眼药对开角型青光眼24小时眼压的影响

目的探讨3种不同作用机理抗青光眼药物对原发性开角型青光眼(POAG)患者24小时眼压的影响。方法将临床新诊断21例(42眼)POAG患者随机分为3组,分别用前列腺素类(拉坦前列腺素滴眼液)、β受体阻滞剂类(噻吗洛尔滴眼液)或者碳酸酐酶抑制剂类(布林佐胺滴眼液)3种不同药物机理的降眼压抗青光眼药物进行治疗,监测24小时眼压,绘制眼压日曲线,与基线眼压相比较,分析各种药物对患者随机眼压、24小时眼压峰值、24小时眼压平均值及24小时眼压波动的影响。用方差分析(ANOVA)法分析3组患者的随机眼压、眼压峰值和平均眼压下降值及24小时眼压波动之间的差异。结果拉坦前列腺素组用药后随机眼压降低(7.6±2.3)mm Hg,眼压峰值下降(7.1±2.0)mm Hg,平均眼压下降(7.4±2.1)mm Hg,24小时眼压波动(5.1±2.3)mm Hg;噻吗洛尔组用药后随机眼压降低(7.1±2.7)mm Hg,眼压峰值下降(5.4±2.0)mm Hg,平均眼压下降(7.4±2.2)mm Hg,24小时眼压波动(8.1±2.3)mm Hg;布林佐胺组用药后随机眼压降低(5.1±2.5)mm Hg,眼压峰值下降(6.8±2.1)mm Hg,平均眼压下降(5.4±2.3)mm Hg,24小时眼压波动(6.9±2.3)mm Hg。相对于基线眼压,3种降眼压药眼压下降值有显著性差异(P<0.05);随机眼压和24小时平均眼压拉坦前列腺组下降幅度最大,与布林佐胺组比较差异显著(P<0.05);与噻吗洛尔组比较,拉坦前列腺素组24小时眼压波动小,而24小时眼压峰值下降幅度大,差异有显著性(P<0.05)。结论药物治疗POAG,拉坦前列腺素能够稳定有效地降低24小时眼压;噻吗洛尔对24小时平均眼压和白天眼压的降低作用与拉坦前列腺素相当,但是24小时眼压波动大,夜间眼压峰值高;布林佐胺对夜间眼压峰值的降低作用与拉坦前列腺素相当。

Dietary Surveys Carried out among Diabetic Patients Hospitalized in the Metabolic and Endocrine Diseases Department of the C.H.U-B

A varied and balanced diet has always been essential in the optimal management of diabetes. The objective of this work was to evaluate dietary surveys among 50 diabetic patients hospitalized in the metabolic and endocrine diseases department of the Brazzaville Hospital and University Center. This survey was carried out using two methods: dietary history and 24-hour recall. The results relating to the dietary history revealed in the patients a dietary imbalance characterized by snacking at meals, non-compliance with a balanced diet and a high frequency of consumption of foods rich in simple sugar. and saturated fats. Regarding the 24-hour recall, the survey showed that the average blood sugar levels of hospitalized patients increased depending on the number of meals. This meant that these hyperglycemias (2 to 5 g/L) observed in these patients exceeded three meals per day and required, among other things, an increase in insulin intake or doses. The age groups of diabetic patients were also divided. These age groups had partly defined the types of diabetes encountered. Regarding body mass index, women had a body mass index greater than 30 kg/m2 compared to men. This increase in body mass index was explained by being overweight or even obese due to excess body fat.

补中益气汤对阿霉素诱导的大鼠肾病的作用

以阿霉素肾病大鼠模型为研究对象,采用了血液生化学和组织病理学方法,分析了补中益气汤对阿霉素肾病的作用和可能的机制.Wistar雄性大鼠60只,随机分为对照组(n=10)、模型组(n=10)、激素组(n=10)和补中益气汤低剂量组(n=10)、中剂量组(n=10)和高剂量组(n=10).采用阿霉素二次尾静脉注射法(首次6mg/kg,二次3mg/kg)制作阿霉素肾病的大鼠模型.在阿霉素注射后7,21,42d将大鼠置于代谢笼中分别收集24h尿液,测定24h尿蛋白.末次给药后,眼眶取血检测肾功能指标,包括肌肝SCR(serum creatine)和尿素氮BUN(blood urea nitrogen);处死大鼠并观察肾组织病理改变.结果表明:补中益气汤可以显著减少尿蛋白的排泄并缓解肾皮质上皮细胞的病理学改变.这提示补中益气汤对阿霉素大鼠能够通过改善尿蛋白的排泄,缓解肾脏病理改变,从而起到对肾脏的保护作用.

Association between endogenous cortisol level and the risk of central serous chorioretinopathy:a Meta-analysis

AIM： To assess the association between endogenous cortisol level and the risk of central serous chorioretinopathy（CSC）.METHODS： Case-control studies were systematically searched on PubM ed, Embase, Cochrane, China National Knowledge Infrastructure（CNKI） for publishes between January 1990 and July 2017 to assess the association between endogenous cortisol level and CSC. The main endpoints were serum cortisol level at 8 a.m. and 24-hour urine 17-hydroxysteroids level. We assessed pooled data using a random-effects model.RESULTS： Of 86 identified studies, 5 were eligible included in our analysis. The 5 studies included a total of 315 participants, of whom 187 had CSC. Statistically significant association was observed between serum cortisol level（summary SMD=0.77, 95%CI=0.55-0.99）, 24-hour urine 17-hydroxysteroids level（summary SMD=0.95, 95%CI=0.61-1.30）, and the risk of CSC.CONCLUSION： Endogenous cortisol level is associated with an increased risk of CSC. Combined treatment targeting the serum cortisol level at 8 a.m. and 24-hour urine 17-hydroxysteroids level can be a potential preventive strategy for individuals who are at risk of CSC and therapeutic strategy for patients with CSC.

Computed tomography perfusion and computed tomography angiography for prediction of clinical outcomes in ischemic stroke patients after thrombolysis

Cerebral blood perfusion and cerebrovascular lesions are important factors that can affect the therapeutic efficacy of thrombolysis.At present,the majority of studies focus on assessing the accuracy of lesion location using imaging methods before treatment,with less attention to predictions of outcomes after thrombolysis.Thus,in the present study,we assessed the efficacy of combined computed tomography（CT） perfusion and CT angiography in predicting clinical outcomes after thrombolysis in ischemic stroke patients.The study included 52 patients who received both CT perfusion and CT angiography.Patients were grouped based on the following criteria to compare clinical outcomes：（1） thrombolytic and non-thrombolytic patients,（2） thrombolytic patients with CT angiography showing the presence or absence of a vascular stenosis,（3） thrombolytic patients with CT perfusion showing the presence or absence of hemodynamic mismatch,and（4） different CT angiography and CT perfusion results.Short-term outcome was assessed by the 24-hour National Institution of Health Stroke Scale score change.Long-term outcome was assessed by the 3-month modified Rankin Scale score.Of 52 ischemic stroke patients,29 were treated with thrombolysis and exhibited improved short-term outcomes compared with those without thrombolysis treatment（23 patients）.Patients with both vascular stenosis and blood flow mismatch（13 patients） exhibited the best short-term outcome,while there was no correlation of long-term outcome with CT angiography or CT perfusion findings.These data suggest that combined CT perfusion and CT angiography are useful for predicting short-term outcome,but not long-term outcome,after thrombolysis.

Reproductive Behaviors and Pairing Modes of Odontotermes fomosanus(Shiraki)Alates

[ Objectives ] To study the reproductive behaviors and the effect of different pairing modes on the developmental status of incipient colonies＇of Odontote- rmes fomosanus （Shiraki）. [ Methods ] We observed the reproductive behaviors of male alates, female Mates and mated alates respectively. Male and female Mates had 9 pairing modes and founded 170 incipient colonies under laboratory conditions. The effect of pairing mode on incipient colonies＇ developmental status was ana- lyzed. [ Results ] Two peaking hours of mating activity within the daily circadian rhythm of Mate activity appeared from 09：00 to 10：00, and from 21：00 to 22：00, respectively. Courtship behavior before mating consisted of touching with antennae, connecting into a ring （head-to-end）, and licking. The reproductive behavior （ calling, pairing, tandem, mating and oviposition） of nestmate pairs was different to that of non-nestmate pairs. The pairing time of non-nestmate pairs was signifi- candy longer than that of alates paired with siblings （P 〈 0.05 ）. The non-swarming alates could mate with swarming or non-swarming Mates and lay fertile eggs which hatched successfully. However, the survival rate of colonies founded by non-swarming alates was very low. The death rate of incipient colonies was in the range of 0.61% -0. 99% after three months, while the death rate of the colonies founded by swarming alates was in the range of 0.22% -0.58%. Females that had been experimentally prevented from mating could lay eggs, but the eggs did not hatch. [ Conclusion] There are two distinct hourly peaks of mating activity within each 24 hour period. Incipient colonies founded by outbreeding have the highest probability of survival.

Nutritional Biomarker Analyses for Hypertension-Related Risk Assessment and Control

A simple method to collect 24-hour urine (24U) by sampling 2.5% of the voided urine each time was developed for analyzing the biomarkers of the intakes of salt (NaCl), vegetables and grains (K, Mg), soys (isoflavones), sea-foods (taurine), protein (urea nitrogen) etc. This method was applied to WHO-coordinated CARDIAC (Cardiovascular Diseases and Alimentary Comparison) study covering 61 populations in 25 countries, and revealed significant positive associations of Na or Na/K with blood pressure (BP) and stroke mortality and significant inverse associations of isoflavones or taurine with coronary heart disease (CHD) mortality, indicating the adverse effect of salt intake on BP and stroke and beneficial effect of soy or sea food intakes on CHD. Furthermore, higher urinary taurine and/or Mg excretions were associated with significantly lower risks of metabolic syndromes such as obesity, hypertension and hypercholestelomia. 24U collections were useful to prove nutritional improvement by intervention studies for observing soy intake effect on BP and atherogenic index in Japanese immigrants living in Brazil, and in Australian Aboriginals, for observing taurine effect on BP in Tibetans and for confirming soy and fish effects on the risks of metabolic syndromes in Japanese businessmen. 24U collection was utilized for population strategy to reduce salt and to increase soy intake in 5.6 million people of Hyogo Prefecture. A simple method for 24U collection has enabled us to utilize nutritional biomarkers for hypertension-related disease risk analyses, and to apply objective nutritional intake estimation to intervention studies as well as to population strategy for nutritional improvement, and therefore, the methodology will contribute to hypertension-related disease prevention and global health promotion.

Can spot urine measurement be a substitute for 24-hour urine measurement to estimate sodium intake in adolescents?

Importance:Several methods have been established in recent decades that allow use of spot urine to estimate dietary sodium intake.However,their accuracies have been controversial in children.Objective:To validate the performance of three commonly used methods-the Kawasaki,Tanaka,and International Cooperative Study on Salt,Other Factors,and Blood Pressure(INTERSALT)methods.Additionally,this study explored the accuracies of the Tanaka and INTERSALT methods by using spot urine samples taken at four separate times.Method:Forty-one adolescents aged 14 to 16 years completed two non-consecutive 24-hour urine collections and their mean values were used as reference data.The second-morning urine was used for assessment with the Kawasaki method;a casual spot urine and spot urine samples taken at four separate times(morning,afternoon,evening,and overnight)were used for assessment with the Tanaka and INTERSALT methods.Results:The mean differences were 1801 mg,542 mg,47 mg,and-31 mg for the Kawasaki,Tanaka,INTERSALT 1(with potassium),and INTERSALT2(without potassium)methods with their required spot urine,respectively.The proportions of relative difference levels within±10%were 4.9%for the Kawasaki method,19.5%for the Tanaka method,36.6%for the INTERSALT 1 method,and 36.6%for the INTERSALT2 method.Interpretation:The INTERSALT method seemed to provide minimally biased estimations of mean population sodium intake with casual spot urine.However,there is a need to be cautious regarding inconsistencies in estimation among different levels of sodium intake.The methods assessed in this study were unable to accurately estimate sodium intake at the individual level.

Can pH Monitoring Predict Gastric Emptying Measured by ¹³C-Acetate Breath Test in Gastroesophageal Reflux with Neurological Impairment?

Introduction: Delayed gastric emptying (DGE) often occurs in patients with gastroesophageal reflux (GER) due to neurological impairment (NI). 13C has been used as an alternative tool for measuring the gastric emptying rates. The aim of this study was to predict gastric emptying in children with GER using 13C-acetate breath test (ABT) by 24-hour pH monitoring. Methods: Nineteen patients were divided into 2 groups: a DGE group with NI (14 patients), and normal-emptying group without NI (5 patients). The liquid test meal consisted of RacolTM (5 ml/kg) mixed with 13C-acetate (50 mg for infants, 100 mg for children, and 150 mg for adolescents). 13CO2 was measured using a gas chromatograph-isotope ratio mass spectrometer. The results are expressed as the % of 13C expired per hour and cumulative 13C excretion over a 3-hour periods including the parameters of half excretion and lag time. Results: The mean half excretion time was 1.762 hour in the DGE group and 1.095 hour in the normal-emptying group (P = 0.0196). The mean lag time was 0.971 hour in the DGE group and 0.666 hour in the normal-emptying group (P = 0.0196). Therefore, DGE was significantly more prevalent in the DGE compared to the normal-emptying group. The percentage of the time when the pH was less than 4 on 24-hour esophageal pH monitoring was 21.6% ± 9.2% in the DGE group and 28.5% ± 11.6% in the normal-emptying group (P = 0.4634). Conclusion: The percentage of time when the pH is less than 4 on 24-hour pH monitoring cannot predict DGE measured by the 13C-ABT in GER.