Does Lifestyle Behaviour Trigger Cardiovascular Risk Factors Among School-Going Adolescents In Pakistan?

OBJECTIVE: To explore the association of gender with risk factors for cardiovascular diseases among adolescents. Method: The cross-sectional study was conducted 2016-2019 in low-income schools in Karachi after approval from the ethics review board of Dow University of Health Sciences, and comprised adolescents of both genders aged 11-17 years. Anthropometric measurements and lifestyle behaviours were used to generate risk profile for cardiovascular diseases. Data was analysed using SPSS 16. RESULTS: Of the 1195 subjects, 468(39.2%) were boys and 727(60.8%) were girls. The mean age was 13.9±1.6 years. Mean family size was 5.9±3.64. Overall, 989(91.3%) participants consumed soft drinks, 44(4%) were smokers, 340(48.4%) consumed betel nut, 215(32.9%) Pan, 125(21.2%) Gutka and 9(1.7%) Bidi. Of the total, 867(83.3%) participants were physically less active than recommended, and daily screen time was >2 hours among 513(45.7%) participants. Body mass index and body fat percentage were significantly higher among girls (p<0.05). Higher rates of diastolic and systolic blood pressure and hand grip strength were observed in boys compared to girls (p<0.05). CONCLUSIONS: Interventional programmes in schools should emphasise the need for healthy lifestyle behaviours, increased physical activity, good eating habits and smoking cessation.

A nutrition education intervention to combat undernutrition: experience from a developing country.

Introduction. Undernutrition in children is a major public health concern in Pakistan. A number of interventions which focused only on providing nutrient supplementation have failed to change child undernutrition status during the last 2 decades. The present study aimed to assess the impact of nutrition education on the nutritional status of children living in resource-limited environments. Methods. Subjects were 586 children from Tando Jam and Quetta, Pakistan, aged from 6 months to 8 years. Children were characterized as mild, moderate, or severely wasted on Z-scores. Anthropometry and 24-hour dietary recall were used for nutritional assessment. Intervention strategy was nutrition counselling targeting mothers. Primary outcome was decrease in the severity of wasting and changes in the feeding practices. Results. Nearly 36% children in Tando Jam and 32% children in Quetta progressed to a normal nutritional status. There was a significant increase in the number of meals taken per day (Tando Jam-P ≤ 0.000/Quetta-P ≤ 0.025). In Tando Jam, significant increase was reported in the intake of high starch food items, vegetables, and fruits (P ≤ 0.000). In Quetta, significant increase was noted in the intake of plant protein (P ≤ 0.005), dairy foods (P ≤ 0.041), and vegetables (P ≤ 0.026). Conclusion. Nutrition education was successful in reducing undernutrition in food insecure households.

Prevalence and significance of vitamin D deficiency and insufficiency among apparently healthy adults.

OBJECTIVE: This study aims to determine the prevalence and significance of vitamin D deficiency and insufficiency among apparently healthy adults. DESIGN AND METHODS: A total of 123 subjects, 56.9% males and 43.1% females, were recruited from a tertiary care hospital in Karachi, Pakistan. Questionnaires were administered to gather demographics; height, weight, and blood samples were also taken. For staging serum 25OHD, the cutoff values ≤50 nmol/L and 50.1-74.9 nmol/L were defined as deficiency and insufficiency, respectively. RESULTS: The mean vitamin D level in the study subjects was 41.1±9.6 nmol/L. Of them, 90% had low serum 25OHD levels: 69.9% were deficient and 21.1% had insufficient levels of 25OHD. There was a significant negative correlation between serum 25OHD and iPTH levels. CONCLUSION: The high prevalence of vitamin D deficiency and insufficiency showed that a high proportion of apparently healthy adults are at risk of developing musculoskeletal and other chronic diseases. Serum iPTH and serum 25OHD levels are better markers of this deficiency as compared to other markers.

Community based lifestyle intervention for blood pressure reduction in children and young adults in developing country: cluster randomised controlled trial.

OBJECTIVE: To assess the effectiveness of a community based lifestyle intervention on blood pressure in children and young adults in a developing country setting. DESIGN: Cluster randomised controlled trial. SETTING: 12 randomly selected geographical census based clusters in Karachi, Pakistan. PARTICIPANTS: 4023 people aged 5-39 years. INTERVENTION: Three monthly family based home health education delivered by lay health workers. MAIN OUTCOME MEASURE: Change in blood pressure from randomisation to end of follow-up at 2 years. RESULTS: Analysed using the intention to treat principle, the change in systolic blood pressure (adjusted for age, sex, and baseline blood pressure) was significant; it increased by 1.5 (95% confidence interval 1.1 to 1.9) mm Hg in the control group and by 0.1 (-0.3 to 0.5) mm Hg in the home health education group (P for difference between groups=0.02). Findings for diastolic blood pressure were similar; the change was 1.5 mm Hg greater in the control group than in the intervention group (P=0.002). CONCLUSIONS: Simple, family based home health education delivered by trained lay health workers significantly ameliorated the usual increase in blood pressure with age in children and young adults in the general population of Pakistan, a low income developing country. This strategy is potentially feasible for up-scaling within the existing healthcare systems of Indo-Asia. TRIAL REGISTRATION: Clinical trials NCT00327574.

Community-based interventions to promote blood pressure control in a developing country: a cluster randomized trial.

BACKGROUND: Despite convincing evidence that lowering blood pressure decreases cardiovascular morbidity and mortality, the hypertension burden remains high and control rates are poor in developing countries. OBJECTIVE: To assess the effectiveness of 2 community-based interventions on blood pressure in hypertensive adults. DESIGN: Cluster randomized, 2 x 2 factorial, controlled trial. (ClinicalTrials.gov registration number: NCT00327574) SETTING: 12 randomly selected communities in Karachi, Pakistan. PATIENTS: 1341 patients 40 years or older with hypertension (systolic blood pressure >or=140 mm Hg, diastolic blood pressure >or=90 mm Hg, or already receiving treatment). MEASUREMENTS: Reduction in systolic blood pressure from baseline to end of follow-up at 2 years. INTERVENTION: Family-based home health education (HHE) from lay health workers every 3 months and annual training of general practitioners (GPs) in hypertension management. RESULTS: The age, sex, and baseline blood pressure-adjusted decrease in systolic blood pressure was significantly greater in the HHE and GP group (10.8 mm Hg [95% CI, 8.9 to 12.8 mm Hg]) than in the GP-only, HHE-only, or no intervention groups (5.8 mm Hg [CI, 3.9 to 7.7 mm Hg] in each; P < 0.001). The interaction between the main effects of GP training and HHE on the primary outcome approached significance (interaction P = 0.004 in intention-to-treat analysis and P = 0.044 in per-protocol analysis). LIMITATIONS: Follow-up blood pressure measurements were missing for 22% of patients. No mechanism was detected by which interventions lowered blood pressure. CONCLUSION: Family-based HHE delivered by trained lay health workers, coupled with educating GPs on hypertension, can lead to significant blood pressure reductions among patients with hypertension in Pakistan. Both strategies in combination may be feasible for upscaling within the existing health care systems of Indo-Asian countries. PRIMARY FUNDING SOURCE: Wellcome Trust.

Anemia prevalence and risk factors in pregnant women in an urban area of Pakistan.

BACKGROUND: Anemia affects almost two-thirds of pregnant women in developing countries and contributes to maternal morbidity and mortality and to low birthweight. OBJECTIVE: To determine the prevalence of anemia and the dietary and socioeconomic factors associated with anemia in pregnant women living in an urban community setting in Hyderabad, Pakistan. METHODS: This was a prospective, observational study of 1,369 pregnant women enrolled at 20 to 26 weeks of gestation and followed to 6 weeks postpartum. A blood sample was obtained at enrollment to determine hemoglobin levels. Information on nutritional knowledge, attitudes, and practice and dietary history regarding usual food intake before and during pregnancy were obtained by trained interviewers within 1 week of enrollment. RESULTS: The prevalence of anemia (defined by the World Health Organization as hemoglobin < 11.0 g/dL) in these subjects was 90.5%; of these, 75.0% had mild anemia (hemoglobin from 9.0 to 10.9 g/dL) and 14.8% had moderate anemia (hemoglobin from 7.0 to 8.9 g/dL). Only 0.7% were severely anemic (hemoglobin < 7.0 g/ dL). Nonanemic women were significantly taller, weighed more, and had a higher body mass index. Multivariate analysis after adjustment for education, pregnancy history, iron supplementation, and height showed that drinking more than three cups of tea per day before pregnancy (adjusted prevalence odds ratio [aPOR], 3.2; 95% confidence interval [CI], 1.3 to 8.0), consumption of clay or dirt during pregnancy (aPOR, 3.7; 95% CI, 1.1 to 12.3), and never consuming eggs or consuming eggs less than twice a week during pregnancy (aPOR, 1.7; 95% CI, 1.1 to 2.5) were significantly associated with anemia. Consumption of red meat less than twice a week prior to pregnancy was marginally associated with anemia (aPOR, 1.2; 95% CI, 0.8 to 1.8) but was significantly associated with lower mean hemoglobin concentrations (9.9 vs. 10.0 g/dL, p = .05) during the study period. A subanalysis excluding women with mild anemia found similar associations to those of the main model, albeit even stronger. CONCLUSIONS: A high percentage of women at 20 to 26 weeks of pregnancy had mild to moderate anemia. Pica, tea consumption, and low intake of eggs and red meat were associated with anemia. Women of childbearing age should be provided nutritional education regarding food sources of iron, especially prior to becoming pregnant, and taught how food choices can either enhance or interfere with iron absorption.

Tawana project-school nutrition program in Pakistan--its success, bottlenecks and lessons learned.

Tawana Pakistan Project, a multifaceted pilot project (Sept. 2002 to June 2005) was funded by the Government of Pakistan to address poor nutritional status and school enrollment of primary school age girls. The core strategy was to create safe environment empowering village women to take collective decisions. Through reflective learning process women learnt to plan balanced menus, purchase food, prepare and serve a noon meal at school from locally available foods at nominal costs (USD 0.12/child). Aga Khan University partnered the government for the design, management, monitoring and evaluation of the project, 11 NGO's facilitated implementation in 4035 rural government girls' schools. Training was provided to 663 field workers, 4383 community organizers, 4336 school teachers and around 95 thousand rural women. Height and weight were recorded at baseline and every 6 months thereafter. Wasting, underweight and stunting decreased by 45%, 22% and 6% respectively. Enrollment increased by 40%. Women's' ability to plan balanced meals improved and >76% of all meals provided the basic three food groups by end of project. Government bureaucracy issues, especially at the district level proved to be the most challenging bottlenecks. Success can be attributed to synergies gained by dealing with nutrition, education and empowerment issues simultaneously.

Validating MOSPA questionnaire for measuring physical activity in Pakistani women.

BACKGROUND: Precise measurements of activity at a population level are important for monitoring trends and evaluating health promotion strategies. Few studies have assessed the measurement of physical activity in developing countries. The aim of this study was to validate the MOSPA (Monica Optional Study of Physical Activity) questionnaire which was developed for the WHO-Monitoring trends and determinants of cardiovasculr disease (MONICA) study sites. METHODS: The MOSPA questionnaire assesses energy expendtiture (EE) related to physical activity (employment, household work, transportation, and leisure time) over a one year period. This questionnaire has been described in the manuscript as the long term (LT) questionnaire. An adapted short term (ST) 5 day questionnaire was developed to assess convergent validity. Questionnaire data were compared with physical activity EE estimates from a Caltrac accelerometer and with body composition measures (height, weight and bioelectrical impedance) in 50 women from the Aga Khan University (AKU) hospital antenatal clinics, Pakistan. Other forms of EE i.e. resting EE and thermic effect of food were not assessd in this study. RESULTS: Subjects were aged 26 +/- 3.8 years and were 16.1 +/- 6.7 weeks pregnant. Their average weight was 58.8 +/- 10.7 Kg. The average EE/day assessed by the Caltrac accelerometer, was 224 kcal and by MOSPA LT questionnaire it was 404 kcal. The questionnaires and Caltrac data were reasonably well correlated: r = 0.51 and r = 0.60 (P < 0.01) for LT and ST questionnaires respectively. Energy expenditure from questionnaire data was not correlated with body composition measures. CONCLUSION: The MOSPA questionnaire is useful in assessing physical activity levels in a sedentary population over a one year period.

Child's gender and household food insecurity are associated with stunting among young Pakistani children residing in urban squatter settlements.

BACKGROUND: The nutritional status of children is a good indicator of the overall well-being of a society and reflects food security as well as existing health-care and environmental conditions. In Pakistan, it is estimated that nearly 40% to 50% of children under the age of five are stunted. Due to greater economic opportunities available to the urban population as compared to the rural, it was believed that economic resources existed in poor urban Pakistani households but that the households lacked the skills and knowledge to translate their resources into good care and feeding practices. OBJECTIVE: This study aimed 1) to assess the prevalent care and feeding practices among children aged 6 to 18 months residing in the squatter settlements of Karachi and 2) to identify care and feeding practices, as well as any other underlying factors, associated with stunting. METHODS: A cross-sectional survey was conducted in eight settlements between October and December 2000. A total of 433 mothers of eligible children were interviewed with the use of structured questionnaires. Final analysis using multiple logistic regression was conducted on 399 mother-child pairs. RESULTS: Female children were nearly three times more likely to be stunted than male children. Households that were food insecure with hunger were also three times more likely than other households to have a stunted child. Lack of maternal formal schooling (adjusted prevalence odds ratio, 2.9; 95% confidence interval, 1.4 to 3.8) and large household size (adjusted prevalence odds ratio, 1.7; 95% confidence interval, 1.0 to 3.8) were also associated with stunting. Even though certain care and feeding practices were significant at the univariate level, they were not significant in the final multivariate analysis and so were excluded from the final model. CONCLUSIONS: In households where food insecurity exists, knowledge of care practices may not be sufficient, and interventions such as food subsidies must precede or accompany educational efforts. Further follow-up is required to explore the effect of gender differences on child care.

Food habits and nutrient density of diets of Pakistani children living in different urban and rural settings.

Food habits and nutrient density of diets of six groups of rural and urban school children aged 10-12 years were compared. Data were collected from three-day food records. In the UK, data were collected during October-November 1994 and in Pakistan during April-May 1995. Based on the apparent level of urbanism, the six groups were arbitrarily assigned urbanization rank 1-6. Patterns of their food and intake of nutrients were different from each other in various aspects and were not always associated with the apparent level of urbanism of the group. With urbanization, the intake of fat and sugar increased steadily. The intake of carbohydrate, fibre, riboflavin, and vitamin E decreased with urbanization. The intake of vitamin C, vitamin B12, and folates was higher among group 4, 5, and 6 than other groups. Due to various factors, in terms of micronutrient density, diets of various urban groups could have more differences than similarities. While these differences point toward the need for comprehensive nutrition education and community nutrition surveys, they also indicate the possibility of having healthy diets in urban settings.