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Among older adults in China and the US, we aimed to compare the biomarkers of chronic-kidney-diseases (CKD), factors associated with CKD, and the correlation between CKD and mortality. China and the US. Cross-sectional and prospective cohorts. We included 2019 participants aged 65 and above from the Chinese Longitudinal Healthy Longevity Study (CLHLS) in 2012, and 2177 from US National Health and Nutrition Examination Survey (NHANES) in 2011-2014. Urinary albumin, urinary creatinine, albumin creatinine ratio (ACR), serum creatinine, blood urea nitrogen, plasma albumin, uric acid, and estimated glomerular filtration rate (eGFR). CKD (ACR ≥ 30 mg/g or eGFR< 60 ml/min/1.73m2) and mortality. Logistic regression and Cox proportional hazard models. Covariates included age, sex, race, education, income, marital status, health condition, smoking and drinking status, physical activity and body mass index. Chinese participants had lower levels of urinary albumin, ACR, and uric acid than the US (mean: 25.0 vs 76.4 mg/L, 41.7 vs 85.0 mg/g, 292.9 vs 341.3 μmol/L). In the fully-adjusted model, CKD was associated with the risk of mortality only in the US group (hazard ratio [HR], 95% CI: 2.179, 1.561-3.041 in NHANES, 1.091, 0.940-1.266 in CLHLS). Compared to eGFR≥90, eGFR ranged 30-44 ml/min/1.73m2 was only associated with mortality in the US population (HR, 95% CI: 2.249, 1.141-4.430), but not in the Chinese population (HR, 95% CI: 1.408, 0.884-2.241). The elderly participants in the US sample had worse CKD-related biomarker levels than in China sample, and the association between CKD and mortality was also stronger among the US older adults. This may be due to the biological differences, or co-morbid conditions.

ObjectivesAmong older adults in China and the US, we aimed to compare the biomarkers of chronic-kidney-diseases (CKD), factors associated with CKD, and the correlation between CKD and mortality.SettingChina and the US.Study designCross-sectional and prospective cohorts.ParticipantsWe included 2019 participants aged 65 and above from the Chinese Longitudinal Healthy Longevity Study (CLHLS) in 2012, and 2177 from US National Health and Nutrition Examination Survey (NHANES) in 2011-2014.OutcomesUrinary albumin, urinary creatinine, albumin creatinine ratio (ACR), serum creatinine, blood urea nitrogen, plasma albumin, uric acid, and estimated glomerular filtration rate (eGFR). CKD (ACR ≥ 30 mg/g or eGFR< 60 ml/min/1.73m2) and mortality.Analytical approachLogistic regression and Cox proportional hazard models. Covariates included age, sex, race, education, income, marital status, health condition, smoking and drinking status, physical activity and body mass index.ResultsChinese participants had lower levels of urinary albumin, ACR, and uric acid than the US (mean: 25.0 vs 76.4 mg/L, 41.7 vs 85.0 mg/g, 292.9 vs 341.3 μmol/L). In the fully-adjusted model, CKD was associated with the risk of mortality only in the US group (hazard ratio [HR], 95% CI: 2.179, 1.561-3.041 in NHANES, 1.091, 0.940-1.266 in CLHLS). Compared to eGFR≥90, eGFR ranged 30-44 ml/min/1.73m2 was only associated with mortality in the US population (HR, 95% CI: 2.249, 1.141-4.430), but not in the Chinese population (HR, 95% CI: 1.408, 0.884-2.241).ConclusionsThe elderly participants in the US sample had worse CKD-related biomarker levels than in China sample, and the association between CKD and mortality was also stronger among the US older adults. This may be due to the biological differences, or co-morbid conditions.

Background As the incidence and prevalence rates of end stage renal disease (ESRD) rise globally, a disproportionate increase has been observed in the elderly population. Singapore has the fifth highest incidence of treated ESRD worldwide, with the upward trend of ESRD being most apparent among those aged 70 years and older. Although it is well-documented that ESRD patients suffer an impaired quality of life compared to the general population, there is limited research focusing on the unique experiences and needs of elderly ESRD patients in Asian populations. To address the knowledge gap, this study seeks to explore the impact of ESRD and dialysis on the quality of life of elderly (≥70 years old) ESRD patients in Singapore and examine the coping strategies utilised by these patients. Methods This qualitative study involved semi-structured, in-depth interviews with 7 peritoneal dialysis patients, 5 haemodialysis patients, 4 patients on non-dialysis supportive care and 7 caregivers in Singapore. Interviews were conducted in English, Chinese, and Malay and fully transcribed. QSR NVivo 11 software was used for analysis. Results Participants reported that ESRD and dialysis had an impact on three highly interconnected areas of their quality of life: (a) biological/physical (general symptoms, neuromuscular problems, skin problems and poor sleep quality); (b) psychological (depressive symptoms, anxiety and fears, stress and negative self-perceptions); and (c) social (increased dependence on family and loss of social life). There were four key strategies that participants used to cope with these biopsychosocial challenges: (a) family support (financial, practical and emotional support); (b) religious/spiritual support (experiencing gratitude/contentment, the power of prayer and belonging to a faith community); (c) avoidance (cognitive avoidance and distraction techniques); and (d) acceptance (positive thinking and problem solving). Conclusions This study has provided insights into the biopsychosocial impact of ESRD and dialysis, as well as cultural and religious factors that shape the experiences and coping mechanisms of elderly ESRD patients and caregivers in Singapore, which can be used to further the development and implementation of more holistic and person-centred services to help each patient achieve a better quality of life.

Despite availability of clinical practice guidelines for hypertension management, blood pressure (BP) control remains sub-optimal (<30%) even in high-income countries. This study aims to assess the effectiveness of a potentially scalable multicomponent intervention integrated into primary care system compared to usual care on BP control. A cluster-randomized controlled trial was conducted in 8 government clinics in Singapore. The trial enrolled 916 patients aged ≥40 years with uncontrolled hypertension (systolic BP (SBP) ≥140 mmHg or diastolic BP (DBP) ≥90 mmHg). Multicomponent intervention consisted of physician training in risk-based treatment of hypertension, subsidized losartan-HCTZ single-pill combination (SPC) medications, nurse training in motivational conversations (MCs), and telephone follow-ups. Usual care (controls) comprised of routine care in the clinics, no MC or telephone follow-ups, and no subsidy on SPCs. The primary outcome was mean SBP at 24 months' post-baseline. Four clinics (447 patients) were randomized to intervention and 4 (469) to usual care. Patient enrolment commenced in January 2017, and follow-up was during December 2018 to September 2020. Analysis used intention-to-treat principles. The primary outcome was SBP at 24 months. BP at baseline, 12 and 24 months was modeled at the patient level in a likelihood-based, linear mixed model repeated measures analysis with treatment group, follow-up, treatment group × follow-up interaction as fixed effects, and random cluster (clinic) effects. A total of 766 (83.6%) patients completed 2-year follow-up. A total of 63 (14.1%) and 87 (18.6%) patients in intervention and in usual care, respectively, were lost to follow-up. At 24 months, the adjusted mean SBP was significantly lower in the intervention group compared to usual care (-3.3 mmHg; 95% CI: -6.34, -0.32; p = 0.03). The intervention led to higher BP control (odds ratio 1.51; 95% CI: 1.10, 2.09; p = 0.01), lower odds of high (>20%) 10-year cardiovascular risk score (OR 0.67; 95% CI: 0.47, 0.97; p = 0.03), and lower mean log albuminuria (-0.22; 95% CI: -0.41, -0.02; p = 0.03). Mean DBP, mortality rates, and serious adverse events including hospitalizations were not different between groups. The main limitation was no masking in the trial. A multicomponent intervention consisting of physicians trained in risk-based treatment, subsidized SPC medications, nurse-delivered motivational conversation, and telephone follow-ups improved BP control and lowered cardiovascular risk. Wide-scale implementation of a multicomponent intervention such as the one in our trial is likely to reduce hypertension-related morbidity and mortality globally. Trial Registration: Clinicaltrials.gov NCT02972619.

Background Despite the high and rising burden of chronic kidney disease (CKD) in South Asia, factors that influence access to CKD care at the community level have not been studied previously, especially in the rural areas. We conducted a mixed methods study and interviewed key stakeholders to explore the views and experiences of key stakeholders, and identify barriers and potential facilitators that influence access to CKD care at the primary care level in rural India. Methods A total of 21 stakeholders participated in the study. We conducted 15 in-depth interviews on a purposive sample of stakeholders (CKD patients, healthcare providers and health planners) and one focus group discussion with 6 community health workers. The interviews were audio-recorded and transcribed verbatim. We employed the Lévesque’s framework for access to care to base interview guides and structure the initial codes. By inductive and deductive approaches, thematic analysis was undertaken using QSR NVivo version 11. Results The major patient-level barriers to CKD care as reported by the most patients and healthcare providers was poor knowledge and awareness of CKD. Health system-level barriers included shortages of skilled healthcare professionals and medicines, fragmented referrals pathways to the specialists at the hospitals with inadequate follow up care. Many patients and healthcare providers, when asked about areas for improving access to CKD care, reported educational initiatives to increase awareness of CKD among healthcare providers and patients, provision of CKD related supplies, and a systems-level approach to care coordination including task shifting by engaging community health workers in CKD care, as potential facilitators. Conclusions We identified several barriers to access CKD care at the primary care level in rural India that need urgent attention. Targeted CKD screening programs and CKD specific educational initiatives may improve awareness of CKD. Additionally, primary care infrastructure needs to be strengthened for CKD care, ensuring trained staff, availability of essential diagnostics and medications, and creating efficient referral pathways for quality CKD care.

Hypertension is a leading risk factor for cardiovascular disease in South Asia. The authors aimed to assess the cross‐country differences in 24‐h ambulatory, daytime, and nighttime systolic blood pressure (SBP) among rural population with uncontrolled clinic hypertension in Bangladesh, Pakistan, and Sri Lanka. The authors studied patients with uncontrolled clinic hypertension (clinic BP ≥ 140/90 mmHg) who underwent ambulatory blood pressure monitoring (ABPM) during the baseline assessment as part of a community‐based trial. The authors compared the distribution of ABPM profiles of patients across the three countries, specifically evaluating ambulatory SBP levels with multivariable models that adjusted for patient characteristics. Among the 382 patients (mean age, 58.3 years; 64.7% women), 56.5% exhibited ambulatory hypertension (24‐h ambulatory BP ≥ 130/80 mmHg), with wide variation across countries: 72.6% (Bangladesh), 50.0% (Pakistan), and 51.0% (Sri Lanka; P  < .05). Compared to Sri Lanka, adjusted mean 24‐h ambulatory, daytime, and nighttime SBP were higher by 12.24 mmHg (95% CI 4.28–20.20), 11.96 mmHg (3.87–20.06), and 12.76 mmHg (4.51–21.01) in Bangladesh, separately. However, no significant differences were observed between Pakistan and Sri Lanka ( P  > .05). Additionally, clinic SBP was significantly associated with 24‐h ambulatory (mean 0.38, 95% CI 0.28–0.47), daytime (0.37, 0.27–0.47), and nighttime SBP (0.40, 0.29–0.50) per 1 mmHg increase. The authors observed substantial cross‐country differences in the distribution of ABPM profiles among patients with uncontrolled clinic hypertension in rural South Asia. The authors findings indicated the need to incorporate 24‐h BP monitoring to mitigate cardiovascular risk, particularly in Bangladesh.

Background Chronic kidney disease (CKD) poses a global health challenge with high morbidity and mortality rates. Early detection and prompt intervention are critical in preventing progression to end-stage kidney disease (ESKD) and cardiovascular complications. Effective CKD management requires comprehensive care packages that integrate both pharmacological and non-pharmacological interventions within collaborative, team-based models, aiming to enhance patient outcomes and overall quality of life. The goal of the Strategies for Kidney Outcomes Prevention and Evaluation (SKOPE) study is to establish effective multicomponent intervention (MCI) strategies for evaluating and preventing kidney outcomes in patients with moderate to advanced CKD within primary care settings in Singapore. Methods This study is a 3-year randomized controlled trial among 896 participants aged between 40 and 80 years with moderate or advanced CKD in five government-subsidized polyclinics in Singapore. The components of the MCI are (1) nurses/service coordinators trained as health coaches for motivational conversation and CKD-specific lifestyle counseling on diet and exercise, using a hybrid follow-up approach of in-person, telephone, and secure video meetings; (2) training physicians in algorithm-based standardized management of CKD; (3) subsidy on SGLT2i medications for CKD; and (4) regular CKD case review meetings. The primary outcome is the estimated glomerular filtration rate (eGFR) total slope from randomization to final follow-up at 36 months. Discussion If shown to be effective, cost-effective, and acceptable, SKOPE should be considered for scaling country-wide and in similar regional healthcare systems. Trial registration ClinicalTrials.gov NCT05295368. Registered on March 25, 2022.

Background Experimental studies have shown that exposure to incense burning may have deleterious effects on kidney function and architecture. However, the association between chronic exposure to incense smoke and risk of end-stage renal disease (ESRD) has not been reported in epidemiologic studies. Methods We investigated this association in the Singapore Chinese Health Study, a prospective population-based cohort of 63,257 Chinese men and women of 45–74 years of age in Singapore during recruitment from 1993 to 1998. Information on the practice of incense burning at home, diet, lifestyle and medical history was collected at baseline interviews. ESRD cases were identified through linkage with the nationwide Singapore Renal Registry through 2015. We used Cox proportional hazards regression analysis to estimate hazard ratio (HR) and 95% confidence interval (CI) of ESRD associated with domestic incense burning. Results Among cohort participants, 76.9% were current incense users. After an average 17.5 years of follow-up, there were 1217 incident ESRD cases. Compared to never users, the multivariable-adjusted HR for ESRD risk was 1.05 (95% CI, 0.80 to 1.38) for former users and 1.26 (95% CI, 1.02 to1.57) for current users of incense. In analysis by daily or non-daily use and duration, the increased ESRD risk was observed in daily users who had used incense for > 20 years; HR was 1.25 (95% CI, 1.07 to 1.46). Conversely, the risk was not increased in those who did not use incense daily or who had used daily but for ≤20 years. Conclusions Our findings demonstrate that long-term daily exposure to domestic incense burning could be associated with a higher risk of ESRD in the general population.

The relationship between smoking and risk of kidney failure, especially in people of Chinese origin, is not clear. We analyzed data from the Singapore Chinese Health Study to investigate whether smoking increases the risk of kidney failure. The Singapore Chinese Health Study is a population-based cohort of 63,257 Chinese adults enrolled between 1993 and 1998. Information on smoking status was collected at baseline. Incidence of kidney failure was identified via record linkage with the nationwide Singapore Renal Registry until 2008. Kidney failure was defined by one of the following: 1) serum creatinine level of more than or equal to 500 µmol/l (5.7 mg/dl), 2) estimated glomerular filtration rate of less than 15 ml/min/1.73 m(2), 3) undergoing hemodialysis or peritoneal dialysis, 4) undergone kidney transplantation. Cox proportional hazard regression analysis was performed for the outcome of kidney failure after adjusting for age, education, dialect, herbal medications, body mass index, sex, physician-diagnosed hypertension and diabetes mellitus. The mean age of subjects was 55.6 years at baseline, and 44% were men. Overall 30.6% were ever smokers (current or former) at baseline. A total of 674 incident cases of kidney failure occurred during a median follow-up of 13.3 years. Among men, smokers had a significant increase in the adjusted risk of kidney failure [hazard ratio (HR): 1.29; 95% CI: 1.02-1.64] compared to never smokers. There was a strong dose-dependent association between number of years of smoking and kidney failure, (p for trend = 0.011). The risk decreased with prolonged cessation (quitting ≥10 years since baseline). The number of women smokers was too few for conclusive relationship. Information on baseline kidney function was not available. Cigarette smoking is associated with increased risk of kidney failure among Chinese men. The risk appears to be dose- and duration-dependent and modifiable after long duration of cessation.