Mohamed M Ali
Dados Biográficos
| ID | 3880205 |
|---|---|
| NOME | Mohamed M Ali |
| PRENOMES | Mohamed M |
| SOBRENOME | Ali |
| ASSINATURA | ALI M M |
| AFILIAÇÕES | World Health Organization |
| ORCID | 0000-0003-0242-9241 |
| VERIFICADO | Sim |
| TOTAL DE OBRAS | 20 |
| TOTAL DE CITAÇÕES | 27 |
| TOTAL COMO AUTOR | 20 |
| TOTAL COMO EDITOR | 0 |
| PRIMEIRO ANO DE PUBLICAÇÃO | 2001 |
| ANO MAIS RECENTE DE PUBLICAÇÃO | 2025 |
| ÍNDICE H | 3 |
Contraceptive discontinuation, switching, abandonment and their reproductive consequences
As contraceptive uptake rises in a country, discontinuation of use of a contraceptive method because of dissatisfaction and the ability and willingness to switch promptly to an alternative following such discontinuation become increasingly important determinants of the prevention of unintended pregnancy. About one third of unintended births in low- and middle-income countries are the result of discontinuation or accidental pregnancy while using a…
Worldwide trends in underweight and obesity from 1990 to 2022
BACKGROUND: Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. METHODS: ). For school-aged children and adolescents, we report thinness (BMI 2 SD above the median). FINDINGS: From 1990 to 20…
Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019
BACKGROUND: Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories. METHODS: We used data from 1990 to 2019 on people aged 30-79 years from population-representative studies with measurement of blood pressure and data on blo…
Socioeconomic variations in risky sexual behavior among adolescents in 14 sub-Saharan Africa countries who report ever having had sex
Our findings on disparities in condomless sex associated with socioeconomic characteristics might reflect constraint choice and decision making. Results also suggest the need for educational programming and services and better access to barrier methods
Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories
BACKGROUND: Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. METHODS: For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease …
Rising rural body-mass index is the main driver of the global obesity epidemic in adults
Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities 1,2 . This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity 3–6 . Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean B…
A review of methodology and tools for measuring maternal mortality in humanitarian settings
Estimation of maternal mortality ratio (MMR) in humanitarian settings ('settings of conflict, displacement and natural disaster') is challenging, particularly where communities have dissolved and geographical areas are inaccessible. During humanitarian events, the reproduction of maternal mortality figures by the media is common, and are often based on inaccurate reports. In light of such uncertainties and challenges, the aim of this article was …
Worldwide trends in blood pressure from 1975 to 2015
BACKGROUND: Raised blood pressure is an important risk factor for cardiovascular diseases and chronic kidney disease. We estimated worldwide trends in mean systolic and mean diastolic blood pressure, and the prevalence of, and number of people with, raised blood pressure, defined as systolic blood pressure of 140 mm Hg or higher or diastolic blood pressure of 90 mm Hg or higher. METHODS: For this analysis, we pooled national, subnational, or comm…
Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016
BACKGROUND: Underweight, overweight, and obesity in childhood and adolescence are associated with adverse health consequences throughout the life-course. Our aim was to estimate worldwide trends in mean body-mass index (BMI) and a comprehensive set of BMI categories that cover underweight to obesity in children and adolescents, and to compare trends with those of adults. METHODS: We pooled 2416 population-based studies with measurements of height…
Revising the WHO verbal autopsy instrument to facilitate routine cause-of-death monitoring
OBJECTIVE: Verbal autopsy (VA) is a systematic approach for determining causes of death (CoD) in populations without routine medical certification. It has mainly been used in research contexts and involved relatively lengthy interviews. Our objective here is to describe the process used to shorten, simplify, and standardise the VA process to make it feasible for application on a larger scale such as in routine civil registration and vital statist…
Contraceptive Switching after Method‐related Discontinuation
A response to criticism of our estimates of under-5 mortality in Iraq, 1980–98
According to estimates published in this journal, the number of deaths of children under 5 in Iraq in the period 1991-98 resulting from the Gulf War of 1991 and the subsequent imposition of sanctions by the United Nations was between 400,000 and 500,000. These estimates have since been held to be implausibly high by a working group set up by an Independent Inquiry Committee appointed by the United Nations Secretary-General. We believe the working…
Trends in Protective Behaviour among Single vs. Married Young Women in Sub-Saharan Africa
The trends in contraceptive uptake and condom use among single and married young women show distinct patterns in sub-Saharan Africa. A large median increase of 1.4 percentage points per year in condom use by single young women for pregnancy prevention was witnessed in 18 countries based on Demographic and Health Survey data from 1993 to 2001. In contrast, a modest increase in condom use was noted for married or cohabiting young women. Condom prom…
Sexual and reproductive behaviour among single women aged 15-24 in eight Latin American countries
Trends in Reproductive Behavior among Young Single Women in Colombia and Peru
Using “calendar” data for single women aged 15-24 from successive Demographic and Health Surveys (DHS) conducted in Colombia and Peru during the 1990s, we document trends, year by year, in sexual activity, the use of contraceptives, and subsequent reproductive outcomes. We provide evidence of the important and hitherto largely untapped potential of DHS calendar data to draw complete sexual and reproductive profiles when data from various surveys …
Annual mortality rates and excess deaths of children under five in Iraq, 1991-98
Data from two parallel household surveys conducted in Iraq by UNICEF in 1999 show that under-5 mortality declined steadily from 1974 to 1990, reaching about 63 per 1,000 live births in the period 1986-90. It then rose dramatically to 118 per 1,000 in 1991, the year of the Gulf War. The number of 'excess' under-5 deaths (i.e., the number in excess of the number predicted from past trends) in Iraq between 1991 and 1998 was calculated assuming that,…
Assessment of a New Approach to Family Planning Services in Rural Pakistan
Objectives. In 1993, the government of Pakistan started a new approach to the delivery of contraceptive services by training literate married women to provide doorstep advice and supplies in their own and neighboring communities. This report assesses whether this community-based approach is starting to have an impact on contraceptive use in rural areas. Methods. A clustered nationally representative survey was used to collect data on contraceptiv…
Quality of Care and Contraceptive Pill Discontinuation in Rural Egypt
Indicators of family planning service access and quality were generated using the Egypt DHS-I (1988) and the Egypt Service Availability Survey (1989), and linked to episodes of contraceptive pill use. Multilevel analysis was used to ascertain whether or not these access and quality indicators influence the continuation of pill use, net of women’s socioeconomic, demographic and motivational characteristics. A model with random components at the cl…
Sexual Risk Behavior in Urban Populations of Northeastern Africa
The Link Between Postnatal Abstinence and Extramarital Sex in Cote d'lvoire
Whether the link, found in Benin, between postnatal abstinence and husbands' extramarital contacts can be generalized to other West African countries is assessed in this study. Data from the 1994 Demographic and Health Survey, Cote d'lvoire, obtained from monogamous husbands concerning their extramarital sexual behavior in the two months preceding the survey were linked to data reported by wives concerning postnatal abstinence over the same time …
Sexual and reproductive behaviour among single women aged 15-24 in eight Latin American countries
Assessment of a New Approach to Family Planning Services in Rural Pakistan
Objectives. In 1993, the government of Pakistan started a new approach to the delivery of contraceptive services by training literate married women to provide doorstep advice and supplies in their own and neighboring communities. This report assesses whether this community-based approach is starting to have an impact on contraceptive use in rural areas. Methods. A clustered nationally representative survey was used to collect data on contraceptiv…
Contraceptive Switching after Method‐related Discontinuation
Annual mortality rates and excess deaths of children under five in Iraq, 1991-98
Data from two parallel household surveys conducted in Iraq by UNICEF in 1999 show that under-5 mortality declined steadily from 1974 to 1990, reaching about 63 per 1,000 live births in the period 1986-90. It then rose dramatically to 118 per 1,000 in 1991, the year of the Gulf War. The number of 'excess' under-5 deaths (i.e., the number in excess of the number predicted from past trends) in Iraq between 1991 and 1998 was calculated assuming that,…
The Link Between Postnatal Abstinence and Extramarital Sex in Cote d'lvoire
Whether the link, found in Benin, between postnatal abstinence and husbands' extramarital contacts can be generalized to other West African countries is assessed in this study. Data from the 1994 Demographic and Health Survey, Cote d'lvoire, obtained from monogamous husbands concerning their extramarital sexual behavior in the two months preceding the survey were linked to data reported by wives concerning postnatal abstinence over the same time …
Quality of Care and Contraceptive Pill Discontinuation in Rural Egypt
Indicators of family planning service access and quality were generated using the Egypt DHS-I (1988) and the Egypt Service Availability Survey (1989), and linked to episodes of contraceptive pill use. Multilevel analysis was used to ascertain whether or not these access and quality indicators influence the continuation of pill use, net of women’s socioeconomic, demographic and motivational characteristics. A model with random components at the cl…
Sexual Risk Behavior in Urban Populations of Northeastern Africa
The Link Between Postnatal Abstinence and Extramarital Sex in Cote d'lvoire
Whether the link, found in Benin, between postnatal abstinence and husbands' extramarital contacts can be generalized to other West African countries is assessed in this study. Data from the 1994 Demographic and Health Survey, Cote d'lvoire, obtained from monogamous husbands concerning their extramarital sexual behavior in the two months preceding the survey were linked to data reported by wives concerning postnatal abstinence over the same time …
Assessment of a New Approach to Family Planning Services in Rural Pakistan
Objectives. In 1993, the government of Pakistan started a new approach to the delivery of contraceptive services by training literate married women to provide doorstep advice and supplies in their own and neighboring communities. This report assesses whether this community-based approach is starting to have an impact on contraceptive use in rural areas. Methods. A clustered nationally representative survey was used to collect data on contraceptiv…
Trends in Reproductive Behavior among Young Single Women in Colombia and Peru
Using “calendar” data for single women aged 15-24 from successive Demographic and Health Surveys (DHS) conducted in Colombia and Peru during the 1990s, we document trends, year by year, in sexual activity, the use of contraceptives, and subsequent reproductive outcomes. We provide evidence of the important and hitherto largely untapped potential of DHS calendar data to draw complete sexual and reproductive profiles when data from various surveys …
Annual mortality rates and excess deaths of children under five in Iraq, 1991-98
Data from two parallel household surveys conducted in Iraq by UNICEF in 1999 show that under-5 mortality declined steadily from 1974 to 1990, reaching about 63 per 1,000 live births in the period 1986-90. It then rose dramatically to 118 per 1,000 in 1991, the year of the Gulf War. The number of 'excess' under-5 deaths (i.e., the number in excess of the number predicted from past trends) in Iraq between 1991 and 1998 was calculated assuming that,…
Sexual and reproductive behaviour among single women aged 15-24 in eight Latin American countries
Trends in Protective Behaviour among Single vs. Married Young Women in Sub-Saharan Africa
The trends in contraceptive uptake and condom use among single and married young women show distinct patterns in sub-Saharan Africa. A large median increase of 1.4 percentage points per year in condom use by single young women for pregnancy prevention was witnessed in 18 countries based on Demographic and Health Survey data from 1993 to 2001. In contrast, a modest increase in condom use was noted for married or cohabiting young women. Condom prom…
A response to criticism of our estimates of under-5 mortality in Iraq, 1980–98
According to estimates published in this journal, the number of deaths of children under 5 in Iraq in the period 1991-98 resulting from the Gulf War of 1991 and the subsequent imposition of sanctions by the United Nations was between 400,000 and 500,000. These estimates have since been held to be implausibly high by a working group set up by an Independent Inquiry Committee appointed by the United Nations Secretary-General. We believe the working…
Contraceptive Switching after Method‐related Discontinuation
Revising the WHO verbal autopsy instrument to facilitate routine cause-of-death monitoring
OBJECTIVE: Verbal autopsy (VA) is a systematic approach for determining causes of death (CoD) in populations without routine medical certification. It has mainly been used in research contexts and involved relatively lengthy interviews. Our objective here is to describe the process used to shorten, simplify, and standardise the VA process to make it feasible for application on a larger scale such as in routine civil registration and vital statist…
Worldwide trends in blood pressure from 1975 to 2015
BACKGROUND: Raised blood pressure is an important risk factor for cardiovascular diseases and chronic kidney disease. We estimated worldwide trends in mean systolic and mean diastolic blood pressure, and the prevalence of, and number of people with, raised blood pressure, defined as systolic blood pressure of 140 mm Hg or higher or diastolic blood pressure of 90 mm Hg or higher. METHODS: For this analysis, we pooled national, subnational, or comm…
Worldwide trends in body-mass index, underweight, overweight, and obesity from 1975 to 2016
BACKGROUND: Underweight, overweight, and obesity in childhood and adolescence are associated with adverse health consequences throughout the life-course. Our aim was to estimate worldwide trends in mean body-mass index (BMI) and a comprehensive set of BMI categories that cover underweight to obesity in children and adolescents, and to compare trends with those of adults. METHODS: We pooled 2416 population-based studies with measurements of height…
A review of methodology and tools for measuring maternal mortality in humanitarian settings
Estimation of maternal mortality ratio (MMR) in humanitarian settings ('settings of conflict, displacement and natural disaster') is challenging, particularly where communities have dissolved and geographical areas are inaccessible. During humanitarian events, the reproduction of maternal mortality figures by the media is common, and are often based on inaccurate reports. In light of such uncertainties and challenges, the aim of this article was …
Rising rural body-mass index is the main driver of the global obesity epidemic in adults
Body-mass index (BMI) has increased steadily in most countries in parallel with a rise in the proportion of the population who live in cities 1,2 . This has led to a widely reported view that urbanization is one of the most important drivers of the global rise in obesity 3–6 . Here we use 2,009 population-based studies, with measurements of height and weight in more than 112 million adults, to report national, regional and global trends in mean B…
Height and body-mass index trajectories of school-aged children and adolescents from 1985 to 2019 in 200 countries and territories
BACKGROUND: Comparable global data on health and nutrition of school-aged children and adolescents are scarce. We aimed to estimate age trajectories and time trends in mean height and mean body-mass index (BMI), which measures weight gain beyond what is expected from height gain, for school-aged children and adolescents. METHODS: For this pooled analysis, we used a database of cardiometabolic risk factors collated by the Non-Communicable Disease …
Worldwide trends in hypertension prevalence and progress in treatment and control from 1990 to 2019
BACKGROUND: Hypertension can be detected at the primary health-care level and low-cost treatments can effectively control hypertension. We aimed to measure the prevalence of hypertension and progress in its detection, treatment, and control from 1990 to 2019 for 200 countries and territories. METHODS: We used data from 1990 to 2019 on people aged 30-79 years from population-representative studies with measurement of blood pressure and data on blo…
Socioeconomic variations in risky sexual behavior among adolescents in 14 sub-Saharan Africa countries who report ever having had sex
Our findings on disparities in condomless sex associated with socioeconomic characteristics might reflect constraint choice and decision making. Results also suggest the need for educational programming and services and better access to barrier methods
Worldwide trends in underweight and obesity from 1990 to 2022
BACKGROUND: Underweight and obesity are associated with adverse health outcomes throughout the life course. We estimated the individual and combined prevalence of underweight or thinness and obesity, and their changes, from 1990 to 2022 for adults and school-aged children and adolescents in 200 countries and territories. METHODS: ). For school-aged children and adolescents, we report thinness (BMI 2 SD above the median). FINDINGS: From 1990 to 20…
Contraceptive discontinuation, switching, abandonment and their reproductive consequences
As contraceptive uptake rises in a country, discontinuation of use of a contraceptive method because of dissatisfaction and the ability and willingness to switch promptly to an alternative following such discontinuation become increasingly important determinants of the prevention of unintended pregnancy. About one third of unintended births in low- and middle-income countries are the result of discontinuation or accidental pregnancy while using a…
Demography (17 obras) · Medicine (16 obras) · Population (16 obras) · Sociology (14 obras) · Environmental health (9 obras) · Global Maternal and Child Health (9 obras) · Adolescent Sexual and Reproductive Health (7 obras) · Demography (7 obras) · Family planning (7 obras) · Geography (7 obras)