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Featured researches published by Yasir Bin Nisar.


BMJ | 2006

Chest radiography in children aged 2-59 months diagnosed with non-severe pneumonia as defined by World Health Organization: descriptive multicentre study in Pakistan

Tabish Hazir; Yasir Bin Nisar; Shamim Qazi; Shazia Faruqui Khan; Mujahid Raza; Shehla Zameer; Syed Asif Masood

Abstract Objectives To evaluate the chest radiographs of children diagnosed with non-severe pneumonia on the basis of the current World Health Organization guidelines (fast breathing alone) for radiological evidence of pneumonia. Design Descriptive analysis. Setting Outpatient departments of six hospitals in four cities in Pakistan. Participants 2000 children with non-severe pneumonia were enrolled; 1932 children were selected for chest radiography. Interventions Two consultant radiologists used standardised WHO definitions to evaluate chest radiographs; no clinical information was made available to them. If they disagreed, the radiographs were read by a third radiologist; the final classification was based on agreement between two of the three radiologists. Main outcome measures Presence or absence of pneumonia on radiographs. Results Chest radiographs were reported normal in 1519 children (82%). Radiological evidence of pneumonia was reported in only 263 (14%) children, most of whom had interstitial pneumonitis. Lobar consolidation was present in only 26 children. The duration of illness did not correlate significantly with the presence of radiological changes (relative risk 1.17, 95% confidence interval 0.91 to 1.49). Conclusion Most children diagnosed with non-severe pneumonia on the basis of the current WHO definition had normal chest radiographs.


Public Health Nutrition | 2013

Determinants of suboptimal breast-feeding practices in Pakistan

Tabish Hazir; Dure-Samin Akram; Yasir Bin Nisar; Narjis Kazmi; Kingsley E Agho; Saleem Abbasi; Amira M. Khan; Michael J. Dibley

OBJECTIVE Exclusive breast-feeding is estimated to reduce infant mortality in low-income countries by up to 13 %. The aim of the present study was to determine the risk factors associated with suboptimal breast-feeding practices in Pakistan. DESIGN A cross-sectional study using data extracted from the multistage cluster sample survey of the Pakistan Demographic and Health Survey 2006-2007. SETTING A nationally representative sample of households. SUBJECTS Last-born alive children aged 0-23 months (total weighted sample size 3103). RESULTS The prevalences of timely initiation of breast-feeding, bottle-feeding in children aged 0-23 months, exclusive breast-feeding and predominant breast-feeding in infants aged 0-5 months were 27·3 %, 32·1 %, 37·1 % and 18·7 %, respectively. Multivariate analysis indicated that working mothers (OR = 1·48, 95 % CI 1·16, 1·87; P = 0·001) and mothers who delivered by Caesarean section (OR = 1·95, 95 % CI 1·30, 2·90; P = 0·001) had significantly higher odds for no timely initiation of breast-feeding. Mothers from North West Frontier Province were significantly less likely (OR = 0·37, 95 % CI 0·23, 0·59; P < 0·001) not to breast-feed their babies exclusively. Mothers delivered by traditional birth attendants had significantly higher odds to predominantly breast-feed their babies (OR = 1·96, 95 % CI 1·18, 3·24; P = 0·009). The odds of being bottle-fed was significantly higher in infants whose mothers had four or more antenatal clinic visits (OR = 1·93, 95 % CI 1·46, 2·55; P < 0·001) and belonged to the richest wealth quintile (OR = 2·41, 95 % CI 1·62, 3·58; P < 0·001). CONCLUSIONS The majority of Pakistani mothers have suboptimal breast-feeding practices. To gain the full benefits of breast-feeding for child health and nutrition, there is an urgent need to develop interventions to improve the rates of exclusive breast-feeding.


BMC Public Health | 2014

Determinants of neonatal mortality in Pakistan: secondary analysis of Pakistan Demographic and Health Survey 2006–07

Yasir Bin Nisar; Michael J. Dibley

BackgroundGlobally 7.6 million children died in 2010 before reaching their fifth birthday and 40% of these deaths occur in the neonatal period. Pakistan has the third highest rate of neonatal mortality globally. To implement evidence-based interventions for the reduction of neonatal mortality, it is important to investigate factors associated with neonatal mortality. The aim of the current study was to identify determinants of neonatal mortality in Pakistan.MethodsData was derived from the Pakistan Demographic and Health Survey 2006–07. All singleton live births between 2002 and 2006 were selected for the current analyses. Data was analysed by using STATA 13 and adjusted for the cluster sampling design. Multivariate Cox proportional hazard models were performed using step-wise backward elimination procedures to identify the determinants of neonatal mortality.ResultsA total of 5,702 singleton live births in the last five years preceding the survey were selected. Multivariate analyses showed that living in Punjab province (Adj HR = 2.10, p = 0.015), belonging to the poorest household wealth index quintile (Adj HR = 1.95, p = 0.035), male infants (Adj HR = 1.57, p = 0.014), first rank baby (Adj HR = 1.59, p = 0.049), smaller than average birth size (Adj HR = 1.61, p = 0.023) and mothers with delivery complications (Adj HR = 1.93, p = 0.001) had significantly higher hazards of neonatal death in Pakistan.ConclusionsTo reduce neonatal mortality, there is a need to implement interventions focusing on antenatal care, effective referral system and retraining of healthcare providers to manage delivery complications and smaller than average birth size babies in resource poor communities of Pakistan.


BMC Pregnancy and Childbirth | 2014

Perceptions of antenatal iron-folic acid supplements in urban and rural Pakistan: a qualitative study

Yasir Bin Nisar; Ashraful Alam; Brekhna Aurangzeb; Michael J. Dibley

BackgroundIn Pakistan, 51% of women are anaemic in pregnancy yet only 44% of women use antenatal iron-folic acid (IFA) supplements. Little information exits on the perception and barriers to the use of IFA supplements during pregnancy in Pakistan. The aim of the study was to understand women and healthcare providers’ perceptions, and to investigate the cultural and behavioural factors influencing the use of antenatal IFA supplements in rural and urban settings of Pakistan.MethodsWe conducted 10 focus group discussions with mothers, 10 in-depth interviews with currently pregnant women, 6 in-depth interviews with Lady Health Workers and 4 in-depth interviews with doctors providing antenatal care services. The study was conducted in two districts of Pakistan - district Swabi and Islamabad for rural and urban samples, respectively. Data was collected between August and November 2012.ResultsThe majority of women were aware of the perceived benefits of antenatal IFA supplements. However, the rural women had more limited information about the benefits of IFA supplements than the urban women. The facilitating factors for the women’s use of supplements were: they had knowledge of benefits; they had trust in the healthcare providers; the supplements were available; they had the financial capacity to buy them; they felt better after taking these supplements; and they received support from family members. The barriers to the women’s use of supplements were: they forgot to take them; the non-availability of supplements; their limited financial capacity to buy them; the lack of antenatal care services; family members not allowing use of the supplements; not knowing about the benefits or no education; fear or experience of side effects; considering them as contraceptives; and felt better thus stopped.ConclusionThe coverage of antenatal IFA supplementation can be improved by reducing the barriers related to the use of antenatal IFA supplementation in Pakistan. Interventions focused on providing adequate awareness, good quality counselling, reminder messages, availability of free supplements throughout pregnancy and reducing the side effects should be developed and implemented.


PLOS ONE | 2014

Earlier initiation and use of a greater number of iron-folic acid supplements during pregnancy prevents early neonatal deaths in Nepal and Pakistan.

Yasir Bin Nisar; Michael J. Dibley

Introduction Early neonatal deaths account for 75% of neonatal deaths globally. Antenatal iron-folic acid (IFA) supplementation has significantly reduced the risk of early neonatal deaths in China and Indonesia. We investigated the impact of antenatal IFA supplements on the risk of early neonatal deaths in Nepal and Pakistan during the last decade. Methods Data from the most recent singleton live-births of 8,186 from two Nepal Demographic and Health Surveys (DHS) and 13,034 from two Pakistan DHS were selected for the current study. The primary outcome was early neonatal deaths and the main study variable was antenatal IFA supplementation. Analyses used multivariate Cox proportional regression, adjusted for the cluster sampling design and for 18 potential confounders. Findings The adjusted risk of early neonatal deaths was significantly reduced by 51% (aHR = 0.49, 95% CI = 0.32–0.75) in Nepal and 23% (aHR = 0.77, 95% CI = 0.59–0.99) in Pakistan with any use of IFA compared to none. When IFA supplementation started at or before the 5th month of pregnancy, the adjusted risk of early neonatal mortality was significantly reduced by 53% in Nepal, and 28% in Pakistan, compared to no IFA. When >90 IFA supplements were used and started at or before 5th months, the adjusted risk of early neonatal deaths was significantly reduced by 57% in Nepal, and 45% in Pakistan. In Nepal 4,600 and in Pakistan 75,000 early neonatal deaths could be prevented annually if all pregnant women used >90 IFA supplements and started at or before the 5th month of pregnancy. Conclusions Any use of IFA supplements was significantly associated with reduced risk of early neonatal deaths in Nepal and Pakistan. The greatest mortality sparing effect of IFA on early neonatal deaths in both countries was with early initiation and use of a greater number of supplements.


Clinical Infectious Diseases | 2013

Low Rates of Treatment Failure in Children Aged 2–59 Months Treated for Severe Pneumonia: A Multisite Pooled Analysis

Matthew P. Fox; Donald M. Thea; Salim Sadruddin; Abdul Bari; Rachael Bonawitz; Tabish Hazir; Yasir Bin Nisar; Shamim Qazi

BACKGROUND Despite advances in childhood pneumonia management, it remains a major killer of children worldwide. We sought to estimate global treatment failure rates in children aged 2-59 months with World Health Organization-defined severe pneumonia. METHODS We pooled data from 4 severe pneumonia studies conducted during 1999-2009 using similar methodologies. We defined treatment failure by day 6 as death, danger signs (inability to drink, convulsions, abnormally sleepy), fever (≥38°C) and lower chest indrawing (LCI; days 2-3), LCI (day 6), or antibiotic change. RESULTS Among 6398 cases of severe pneumonia from 10 countries, 564 (cluster adjusted: 8.5%; 95% confidence interval [CI], 5.9%-11.5%) failed treatment by day 6. The most common reasons for clinical failure were persistence of fever and LCI or LCI or fever alone (75% of failures). Seventeen (0.3%) children died. Danger signs were uncommon (<1%). Infants 6-11 months and 2-5 months were 2- and 3.5-fold more likely, respectively, to fail treatment (adjusted OR [AOR], 1.8 [95% CI, 1.4-2.3] and AOR, 3.5 [95% CI, 2.8-4.3]) as children aged 12-59 months. Failure was increased 7-fold (AOR, 7.2 [95% CI, 5.0-10.5]) when comparing infants 2-5 months with very fast breathing to children 12-59 months with normal breathing. CONCLUSIONS Our findings demonstrate that severe pneumonia case management with antibiotics at health facilities or in the community is associated with few serious morbidities or deaths across diverse geographic settings and support moves to shift management of severe pneumonia with oral antibiotics to outpatients in the community.


Journal of Nutrition | 2015

Antenatal Iron-Folic Acid Supplementation Reduces Neonatal and Under-5 Mortality in Nepal

Yasir Bin Nisar; Michael J. Dibley; Saba Mebrahtu; Naveen Paudyal; Madhu Devkota

BACKGROUND Antenatal iron-folic acid (IFA) supplementation improves maternal anemia and poor pregnancy outcomes. Antenatal use of IFA supplements also has an effect on child survival. OBJECTIVE The current study investigated the effect of antenatal IFA supplements on the risk of childhood mortality in Nepal over a 15-y period from 1996 to 2011. METHODS Survival information of 12,891 singleton most recent live-born infants from pooled 2001, 2006, and 2011 Nepal Demographic and Health Surveys was used. Primary outcomes were mortality indicators in children <5 y of age and the main exposure variable was use of IFA supplements. Data were analyzed by using STATA 13.1 (StataCorp) and were adjusted for the cluster sampling design. Analyses used multivariate Cox proportional hazards regression adjusted for potential confounders. RESULTS Antenatal use of IFA supplements significantly reduced the risk of early neonatal deaths by 45% [adjusted HR (aHR): 0.55; 95% CI: 0.38, 0.79] and total neonatal deaths by 42% (aHR: 0.58; 95% CI: 0.39, 0.85). Similarly, the risk of infant and under-5 mortality was significantly reduced by 32% and 48%, respectively. For mothers who started IFA at 1-4 mo of pregnancy and used 150-240 supplements, neonatal and under-5 mortality were significantly reduced by 55% (aHR: 0.45; 95% CI: 0.24, 0.85) and 57% (aHR: 0.43; 95% CI: 0.23, 0.78), respectively. Population attributable risk estimates found 15% of under-5 deaths were attributed to nonuse of IFA, and 29,000 under-5 deaths could be prevented in the next 5 y with universal IFA coverage. CONCLUSIONS Antenatal IFA supplementation significantly reduces the risk of neonatal and under-5 deaths in Nepal. The greatest effect on child survival was found in women who started IFA early in pregnancy and took 150-240 supplements. Universal IFA coverage could improve neonatal and child survival.


Nutrients | 2016

Iron-Folic Acid Supplementation During Pregnancy Reduces the Risk of Stunting in Children Less Than 2 Years of Age: A Retrospective Cohort Study from Nepal

Yasir Bin Nisar; Michael J. Dibley; Victor M. Aguayo

The aim of the study was to investigate the effect of antenatal iron-folic acid (IFA) supplementation on child stunting in Nepalese children age <2 years. A retrospective cohort study design was used, in which a pooled cohort of 5235 most recent live births 2 years prior to interview from three Nepal Demographic and Health Surveys (2001, 2006 and 2011) was analysed. The primary outcome was stunting in children age <2 years. The main exposure variable was antenatal IFA supplementation. Multivariate Poisson regression analysis was performed. In our sample, 31% and 10% of Nepalese children age <2 years were stunted and severely stunted, respectively. The adjusted relative risk of being stunted was 14% lower in children whose mothers used IFA supplements compared to those whose mothers did not use (aRR = 0.86, 95% CI = 0.77–0.97). Additionally, the adjusted relative risk of being stunted was significantly reduced by 23% when antenatal IFA supplementation was started ≤6 months with ≥90 IFA supplements used during pregnancy (aRR = 0.77, 95% CI = 0.64–0.92). Antenatal IFA supplementation significantly reduced the risk of stunting in Nepalese children age <2 years. The greatest impact on the risk reduction of child stunting was when IFA supplements were started ≤6 months with ≥90 supplements were used.


Maternal and Child Nutrition | 2016

Antenatal iron–folic acid supplementation reduces risk of low birthweight in Pakistan: secondary analysis of Demographic and Health Survey 2006–2007

Yasir Bin Nisar; Michael J. Dibley

The aim of the current study was to examine the impact of antenatal iron-folic acid (IFA) supplementation on perceived birth size and birthweight in Pakistan over a 5-year period from 2002 to 2006. The data source was the Pakistan Demographic and Health Survey (PDHS) 2006-2007. Information from 5692 most recent live-born infants within 5 years prior to the survey was examined. The primary outcomes were maternal perception of birth size and birthweight, and the main exposure was any use of antenatal IFA supplements. Birthweight was reported for only 10% of the live births in the PDHS 2006-2007. Multivariate logistic regression analysis was adjusted for the cluster sampling design and for 13 potential confounders. The risk of having smaller than average birth size newborn was significantly reduced by 18% (adjusted odds ratio 0.82, 95% confidence interval 0.71, 0.96) for mothers who used any IFA supplements compared with those who did not. A similar (18%), but non-significant reduction in the risk of low birthweight, was found with the maternal use of IFA supplements. The risk of having smaller than average birth size babies was significantly reduced by 19% in those women who started IFA in the first trimester of pregnancy. About 11% of babies with smaller than average birth size were attributed to non-use of antenatal IFA supplements. Antenatal IFA supplementation significantly reduces the risk of a newborn of smaller than average birth size in Pakistan. Universal coverage of supplementation would improve birth size.


Resuscitation | 2011

Impact of essential surgical skills with an emphasis on emergency maternal, neonatal and child health training on the practice of doctors: A cluster randomised controlled trial in Pakistan

Yasir Bin Nisar; Assad Hafeez; Shamsa Zafar; David Southall

INTRODUCTION Majority of studies on evaluation of emergency management courses have focused on outcomes such as knowledge and skills demonstrated in non-clinical or traditional testing manner. Such surrogate outcomes may not necessarily reflect vital changes in practice. The aim of this study was to determine if and to what extent, specific training in the management of life threatening emergencies resulted in an increased in compliance with established care guidelines of doctors working in the emergency departments of public sector hospitals in Pakistan. METHODS A cluster randomised controlled trial was conducted in three districts hospitals in three cities (Khairpur, Vehari and Peshawar) of Pakistan. Thirty-six doctors, 18 in intervention (trained in ESS-EMNCH training) and 18 in control (untrained), were enrolled and 248 life threatening emergency events, 124 in each group, were observed for the correct use of the Airway, Breathing, Circulation (ABC) structured approach. The outcome measure was structured approach defined a priori. Data was analysed by using STATA software. RESULTS At individual level, 79 (63.7%) life threatening episodes were managed according to the structured approach in the intervention group and 46 (37.1%) were managed according to the structured approach in controls (OR 2.98, 95%CI 1.78-4.99, p-value=0.0001). At cluster level, the mean percentage (95% CI) of the structured approach used by doctors in the intervention group [62.9% (50.4-75.3%)], was significantly higher than those in the control group, [36.3% (26.3-46.4)] (p-value=0.001). CONCLUSIONS 5-day training of ESS-EMNCH significantly increased the compliance with established care guidelines of doctors during their management of life threatening emergency episodes in the public sector hospitals in Pakistan.

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Tabish Hazir

Pakistan Institute of Medical Sciences

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Brekhna Aurangzeb

Pakistan Institute of Medical Sciences

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Shamim Qazi

World Health Organization

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Macha Maharjan

Micronutrient Initiative

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