Ronald H Gray
Biographic Data
| ID | 198498 |
|---|---|
| NAME | Ronald H Gray |
| GIVEN NAMES | Ronald H |
| FAMILY NAME | Gray |
| SIGNATURE | GRAY R H |
| AFFILIATIONS | Johns Hopkins University |
| ORCID | 0000-0003-1952-6507 |
| VERIFIED | Yes |
| TOTAL WORKS | 49 |
| TOTAL CITATIONS | 60 |
| AUTHOR COUNT | 49 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1975 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 4 |
Safety and efficacy of the ShangRing for early infant male circumcision in the routine clinical setting
INTRODUCTION: Male circumcision (MC) has been shown to decrease transmission of HIV and is a critical strategy to decrease its incidence in countries with high rates of heterosexually transmitted HIV. Early infant MC (EIMC), with single-use MC devices, could increase rates of MC in Sub-Saharan Africa. Our objective was to determine the safety, efficacy and satisfaction of ShangRing EIMC in resource-constrained environments. METHODS: Healthy male …
HIV epidemiologic trends among occupational groups in Rakai, Uganda
Certain occupations have been associated with heightened risk of HIV acquisition and spread in sub-Saharan Africa, including female bar and restaurant work and male transportation work. However, data on changes in population prevalence of HIV infection and HIV incidence within occupations following mass scale-up of African HIV treatment and prevention programs is very limited. We evaluated prospective data collected between 1999 and 2016 from the…
Estimation of cause-specific mortality in Rakai, Uganda, using verbal autopsy 1999-2019
BACKGROUND: There are scant data on the causes of adult deaths in sub-Saharan Africa. We estimated the level and trends in adult mortality, overall and by different causes, in rural Rakai, Uganda, by age, sex, and HIV status. OBJECTIVES: To estimate and analyse adult cause-specific mortality trends in Rakai, Uganda. METHODOLOGY: Mortality information by cause, age, sex, and HIV status was recorded in the Rakai Community Cohort study using verbal …
Use of mobile phones to collect data on Covid-19
During the COVID-19 pandemic lockdown, we deployed a rapid, mobile phone-based survey to assess access and participation rates when using mobile phones to collect data on COVID-19 in Rakai, south-central Uganda. We sampled prior Rakai Community Cohort Study (RCCS) participants based on HIV status using mobile phone contacts. We administered a 30-minute phone-based interview to consenting participants to assess their knowledge about different aspe…
Overweight and obesity in south central Uganda
Obesity is a rapidly growing global health challenge, but there are few population-level studies from non-urban settings in sub-Saharan Africa. We evaluated the prevalence of overweight (body mass index (BMI)>25 kg/m 2 ), obesity (BMI>30 kg/m 2 ), and associated factors using data from May 2018 to November 2020 from the Rakai Community Cohort Study, a population-based cohort of residents aged 15 to 49 living in forty-one fishing, trading, and agr…
Cardiovascular (Framingham) and type II diabetes (Finnish Diabetes) risk scores
While most items of the FRS and FINDRISC were generally well understood, physical activity needs further clarification. It is important to consider the seasonality of fruits and vegetables, especially in rural resource-poor settings. Current risk scores will need to be locally adapted to estimate the 10-year risk of cardiovascular diseases and type 2 diabetes in this setting
Enhancers and barriers to uptake of male circumcision services in Northern Uganda
Uganda adopted voluntary medical male circumcision (VMMC) in 2010, but uptake remains disproportionately low in the Northern region despite implementing several demand creation strategies. This study explored the socio-cultural and structural enhancers and barriers to uptake of VMMC services in Gulu, a district in Northern Uganda where uptake is lowest. In September 2016, we conducted 19 focus group discussions, 9 in-depth interviews, and 11 key …
Women’s role in male circumcision promotion in Rakai, Uganda
Medical male circumcision (MMC) has expanded in sub-Saharan Africa, yet uptake remains sub-optimal. We sought to understand women's perceptions of and influence on MMC in Rakai, Uganda. We conducted in-depth interviews with 27 women in fishing and trading communities, including women married to circumcised and uncircumcised men, single women, and sex workers. Data analysis followed a team-based framework approach. All female participants preferre…
Cell Phones, Sexual Behaviors and HIV Prevalence in Rakai, Uganda
Sexual risk behaviors following circumcision among HIV-positive men in Rakai, Uganda
OBJECTIVE: To determine whether circumcision of HIV-positive men is associated with increased subsequent sexual risk behaviors which may place their female partners at risk. METHODS: Newly circumcised and uncircumcised HIV-positive men in the Rakai Community Cohort Study were followed from baseline (July 2013-January 2015) to determine trend in sexual risk behaviors and association of circumcision with subsequent sexual risk behaviors at follow u…
Knowledge on voluntary medical male circumcision in a low uptake setting in northern Uganda
Misconceptions regarding change in sexual drive or performance were associated with circumcision status in this population, while knowledge of VMMC benefits, risks and procedure was not
Effectiveness of an integrated intimate partner violence and HIV prevention intervention in Rakai, Uganda
BACKGROUND: Intimate partner violence (IPV) is associated with HIV infection. We aimed to assess whether provision of a combination of IPV prevention and HIV services would reduce IPV and HIV incidence in individuals enrolled in the Rakai Community Cohort Study (RCCS), Rakai, Uganda. METHODS: We used pre-existing clusters of communities randomised as part of a previous family planning trial in this cohort. Four intervention group clusters from th…
Mobility among youth in Rakai, Uganda
Mobility, including migration and travel, influences risk of HIV. This study examined time trends and characteristics among mobile youth (15-24 years) in rural Uganda, and the relationship between mobility and risk factors for HIV. We used data from an annual household census and population-based cohort study in the Rakai district, Uganda. Data on in-migration and out-migration were collected among youth (15-24 years) from 43 communities from 199…
Understanding the socio-structural context of high HIV transmission in kasensero fishing community, South Western Uganda
The current combination HIV prevention services by the RHSP need to be enhanced with more government involvement including ensuring sustainable supply of ART and circumcision services since they are reportedly highly demanded. Community involvement through the engagement of popular peers could also help in the campaign to change the HIV predisposing culture, misconceptions and risky social norms of the population. Social Context HIV Transmission …
Effectiveness of Peer Support on Care Engagement and Preventive Care Intervention Utilization Among Pre-antiretroviral Therapy, HIV-Infected Adults in Rakai, Uganda
Combined Intimate Partner Violence and HIV/Aids Prevention in Rural Uganda
Intimate partner violence (IPV) has a bidirectional relationship with HIV infection. Researchers from the Rakai Health Sciences Program (RHSP), an HIV research and services organization in rural Uganda, conducted a combination IPV and HIV prevention intervention called the Safe Homes and Respect for Everyone (SHARE) Project between 2005 and 2009. SHARE was associated with significant declines in physical and sexual IPV and overall HIV incidence, …
Male Circumcision Coverage, Knowledge, and Attitudes After 4-Years of Program Scale-up in Rakai, Uganda
Cost analyses of peer health worker and mHealth support interventions for improving Aids care in Rakai, Uganda
A cost analysis study calculates resources needed to deliver an intervention and can provide useful information on affordability for service providers and policy-makers. We conducted cost analyses of both a peer health worker (PHW) and a mHealth (mobile phone) support intervention. Excluding supervisory staffing costs, total yearly costs for the PHW intervention was $8475, resulting in a yearly cost per patient of $8.74, per virologic failure ave…
Community understandings of and responses to gender equality and empowerment in Rakai, Uganda
Women's rights and gender empowerment programmes are now part of the international agenda for improving global public health, the benefits of which are well documented. However, the public health community has, yet, to address how people define and understand gender equality and how they enact the process of empowerment in their lives. This study uses safe homes and respect for everyone (SHARE), an anti-violence intervention in rural Rakai, Ugand…
Risk factors for intimate partner violence in women in the Rakai Community Cohort Study, Uganda, from 2000 to 2009
Using longitudinal data, this study identified a number of risk factors for IPV. These findings are useful for the development of prevention strategies to prevent and mitigate IPV in women
Family structure effects on early sexual debut among adolescent girls in Rakai, Uganda
This study assessed the association between household family structure and early sexual debut among adolescent girls, ages 15-19, in rural Rakai District, Uganda. Early sexual debut is associated with detrimental physical, emotional and social outcomes, including increased risk of HIV. However, research on the family's role on adolescents' sexual risk behaviors in sub-Sahara Africa has been minimal and rarely takes into account the varying family…
Contextual Barriers and Motivators to Adult Male Medical Circumcision in Rakai, Uganda
Medical male circumcision (MMC) is a central component of HIV prevention. In this study we examined barriers to and facilitators of MMC in Rakai, Uganda. Interviews and focus groups with MMC acceptors, decliners, and community members were collected and analyzed iteratively. Themes were developed based on immersion, repeated reading, sorting, and coding of data using grounded theory. Pain, medical complications, infertility, lack of empirical eff…
Impact of a mHealth Intervention for Peer Health Workers on Aids Care in Rural Uganda
Disclosure of HIV results among discordant couples in Rakai, Uganda
Disclosure of HIV sero-positive results among HIV-discordant couples in sub-Saharan Africa is generally low. We describe a facilitated couple counselling approach to enhance disclosure among HIV-discordant couples. Using unique identifiers, 293 HIV-discordant couples were identified through retrospective linkage of married or cohabiting consenting adults individually enrolled into a cohort study and into two randomised trials of male circumcision…
A Randomized Community Trial of Enhanced Family Planning Outreach in Rakai, Uganda
A randomized community trial of a family planning outreach program was conducted in Rakai District, Uganda. Five communities received standard services; six intervention communities received additional family planning information, counseling, and contraceptive methods from government service providers and community‐based volunteer agents using social marketing and other strategies. Condom use was promoted in all of the communities. The community‐…
Effects of Legal Education and Work Experience on Perceptions of Crime Seriousness
Sellin and Wolfgang (1964) reported that respondents exhibit a remarkable degree of consensus as to the seriousness of crime, and that this consensus is explained by a few salient dimensions of the crimes (such as loss of life, loss of property and extent of injury). Subsequent research has supported these findings for the most part. To reconcile these findings with theories of consensus formation, we surveyed a sample of 154 criminal justice bur…
HIV status and union dissolution in Sub-saharan Africa
Little is known about the impact of HIV infection on the disruption of families through separation, divorce, and widowhood. Using life tables and multinomial logistic regression, this research examined the influence of HIV status on the risk of separation or divorce and widowhood among women in Rakai, Uganda. The multivariate results revealed that dissolution is more common among HIV-infected women and that infected women in HIV-discordant couple…
The Reliability of Menses to Indicate the Return of Ovulation in Breastfeeding Women in Manila, The Philippines
Demographic studies generally use menses to indicate the return of fertility during breastfeeding. In a prospective study of 40 breastfeeding women in Manila, the resumption of ovarian activity was monitored by urinary hormone assays, and menstrual status was determined by weekly interview. For the women who menstruated before six months postpartum, first menses was not a good indicator of ovulation because there was a high proportion of anovular…
Trends and Determinants of Contraceptive Use in Rakai District, Uganda, 1995–98
A prospective study conducted between 1995 and 1998 assessed trends in contraceptive use in rural Rakai District, Uganda. Over a period of 30 months, women's use of modern contraceptives increased significantly from 11 percent to 20 percent. Male condom use increased from 10 percent to 17 percent. The prevalence of pregnancy among sexually active women 15–49 declined significantly from 15 percent to 13 percent. Women practicing family planning fo…
Family structure effects on early sexual debut among adolescent girls in Rakai, Uganda
This study assessed the association between household family structure and early sexual debut among adolescent girls, ages 15-19, in rural Rakai District, Uganda. Early sexual debut is associated with detrimental physical, emotional and social outcomes, including increased risk of HIV. However, research on the family's role on adolescents' sexual risk behaviors in sub-Sahara Africa has been minimal and rarely takes into account the varying family…
A Randomized Community Trial of Enhanced Family Planning Outreach in Rakai, Uganda
A randomized community trial of a family planning outreach program was conducted in Rakai District, Uganda. Five communities received standard services; six intervention communities received additional family planning information, counseling, and contraceptive methods from government service providers and community‐based volunteer agents using social marketing and other strategies. Condom use was promoted in all of the communities. The community‐…
Contextual Barriers and Motivators to Adult Male Medical Circumcision in Rakai, Uganda
Medical male circumcision (MMC) is a central component of HIV prevention. In this study we examined barriers to and facilitators of MMC in Rakai, Uganda. Interviews and focus groups with MMC acceptors, decliners, and community members were collected and analyzed iteratively. Themes were developed based on immersion, repeated reading, sorting, and coding of data using grounded theory. Pain, medical complications, infertility, lack of empirical eff…
Sexually Transmitted Infection Management, Safer Sex Promotion and Voluntary HIV Counselling and Testing in the Male Circumcision Trial, Rakai, Uganda
If circumcised men believe that they are protected from HIV there is a possibility that they will compensate for their perceived risk reduction by engaging in higher risk behaviours thereby mitigating any benefit of circumcision in preventing HIV infection. Some observational studies have shown that circumcised men engage in higher risk behaviours than uncircumcised men and the Orange Farm trial in South Africa found circumcised men to have sligh…
Letter
Letter: On infant mortality. R H GrayCopyRight https://doi.org/10.2105/AJPH.65.10.1113-a Published Online: November 15, 2011
Bookdealers + Libraries
BOOKDEALERS + LIBRARIES Get access Ronald Gray Ronald Gray for Hammersmith Books Search for other works by this author on: Oxford Academic Google Scholar History Workshop Journal, Volume 10, Issue 1, AUTUMN 1980, Pages 219-a–219, https://doi.org/10.1093/hwj/10.1.219-a Published: 01 October 1980
Effects of Legal Education and Work Experience on Perceptions of Crime Seriousness
Sellin and Wolfgang (1964) reported that respondents exhibit a remarkable degree of consensus as to the seriousness of crime, and that this consensus is explained by a few salient dimensions of the crimes (such as loss of life, loss of property and extent of injury). Subsequent research has supported these findings for the most part. To reconcile these findings with theories of consensus formation, we surveyed a sample of 154 criminal justice bur…
Disease and Fertility
The State of the World's Children 1987
Natural Human Fertility
The Reliability of Menses to Indicate the Return of Ovulation in Breastfeeding Women in Manila, The Philippines
Demographic studies generally use menses to indicate the return of fertility during breastfeeding. In a prospective study of 40 breastfeeding women in Manila, the resumption of ovarian activity was monitored by urinary hormone assays, and menstrual status was determined by weekly interview. For the women who menstruated before six months postpartum, first menses was not a good indicator of ovulation because there was a high proportion of anovular…
Evaluation of natural family planning programmes in Liberia and Zambia
Studies to evaluate use-effectiveness and cost-effectiveness of natural family planning (NFP) were conducted in Liberia and Zambia. The Liberian programme provided uni-purpose NFP services to 1055 clients mainly in rural areas; the Zambian programme provided NFP services integrated with MCH to 2709 clients predominantly in urban areas. The one-year life table continuation and unplanned pregnancy rates were 78·9 and 4·3 per 100 women-years in Libe…
Adverse outcomes of planned and unplanned pregnancies among users of natural family planning
OBJECTIVES: The purpose of this study was to determine prospectively whether unplanned pregnancies are associated with adverse pregnancy outcomes among users of natural family planning. METHODS: Women who became pregnant while using natural family planning were identified in five centers worldwide: there were 373 unplanned and 367 planned pregnancies in this cohort. The subjects were followed up at 16 and 32 weeks' gestation and after delivery. T…
Consensus criteria for the classification of carpal tunnel syndrome in epidemiologic studies
Criteria for the classification of carpal tunnel syndrome for use in epidemiologic studies were developed by means of a consensus process. Twelve medical researchers with experience in conducting epidemiologic studies of carpal tunnel syndrome participated in the process. The group reached agreement on several conceptual issues. First, there is no perfect gold standard for carpal tunnel syndrome. The combination of electrodiagnostic study finding…
Viral Load and Heterosexual Transmission of Human Immunodeficiency Virus Type 1
BACKGROUND AND METHODS: We examined the influence of viral load in relation to other risk factors for the heterosexual transmission of human immunodeficiency virus type 1 (HIV-1). In a community-based study of 15,127 persons in a rural district of Uganda, we identified 415 couples in which one partner was HIV-1-positive and one was initially HIV-1-negative and followed them prospectively for up to 30 months. The incidence of HIV-1 infection per 1…
Trends and Determinants of Contraceptive Use in Rakai District, Uganda, 1995–98
A prospective study conducted between 1995 and 1998 assessed trends in contraceptive use in rural Rakai District, Uganda. Over a period of 30 months, women's use of modern contraceptives increased significantly from 11 percent to 20 percent. Male condom use increased from 10 percent to 17 percent. The prevalence of pregnancy among sexually active women 15–49 declined significantly from 15 percent to 13 percent. Women practicing family planning fo…
Probability of HIV-1 transmission per coital act in monogamous, heterosexual, HIV-1-discordant couples in Rakai, Uganda
Polygyny, maternal HIV status and child survival
Age Differences in Sexual Partners and Risk of HIV-1 Infection in Rural Uganda
OBJECTIVES: To assess whether differences in age between sexual partners affect the risk of HIV infection in female adolescents and young adults. METHODS: A total of 6177 ever sexually active women aged 15 to 29 years completed a sociodemographic and sexual behavior questionnaire and provided a blood sample for HIV-1 serology. The age difference between partners was categorized as men 0 to 4 years older (referent group), 5 to 9 years older and 10…
Burden of infection among heads and non-head of rural households in Rakai, Uganda
The objective was to determine HIV prevalence, symptomatology and mortality among adult heads and non-heads of households, in order to assess the burden of HIV on households. It was a community study of 11,536 adults aged 15-59, residing in 4,962 households in 56 villages, Rakai district, Uganda. First, 4,962 heads and 6,574 non-heads of households were identified from censuses. Interviews were then used to determine socio-demographic/behavioural…
HIV status and union dissolution in Sub-saharan Africa
Little is known about the impact of HIV infection on the disruption of families through separation, divorce, and widowhood. Using life tables and multinomial logistic regression, this research examined the influence of HIV status on the risk of separation or divorce and widowhood among women in Rakai, Uganda. The multivariate results revealed that dissolution is more common among HIV-infected women and that infected women in HIV-discordant couple…
Rates of HIV‐1 Transmission per Coital Act, by Stage of HIV‐1 Infection, in Rakai, Uganda
BACKGROUND: We estimated rates of human immunodeficiency virus (HIV)-1 transmission per coital act in HIV-discordant couples by stage of infection in the index partner. METHODS: We retrospectively identified 235 monogamous, HIV-discordant couples in a Ugandan population-based cohort. HIV transmission within pairs was confirmed by sequence analysis. Rates of transmission per coital act were estimated by the index partner's stage of infection (rece…
Immunisation coverage among children born to HIV-infected women in Rakai district, Uganda
To evaluate the impact of maternal HIV-infection on routine childhood Immunisation coverage, we compared the Immunisation status of children born to HIV-infected and HIV-uninfected women in rural Uganda. The study population was 214 HIV(+) and 578 HIV(-) women with children aged 6 to 35 months previously enrolled in a community study to evaluate maternal and child health in Rakai District, Uganda. Sampling of subjects for interview was stratified…
Uganda’s HIV Prevention Success
The paper by Green et al. (vol. 10, this issue, AIDS and Behavior). on "Uganda's HIV Prevention Success" concludes that "a decline in multipartner sexual behavior" is the most likely explanation for the declines in HIV prevalence. However, this article neither addresses the inconsistencies in the available behavioral data, nor considers epidemiologic factors that may affect HIV prevalence. The latter include the fact that prevalence is a product …
Repeat Voluntary HIV Counseling and Testing (VCT), Sexual Risk Behavior and HIV Incidence in Rakai, Uganda
Male circumcision for HIV prevention in men in Rakai, Uganda
Alcohol Use, Intimate Partner Violence, Sexual Coercion and HIV among Women Aged 15–24 in Rakai, Uganda
Sexually Transmitted Infection Management, Safer Sex Promotion and Voluntary HIV Counselling and Testing in the Male Circumcision Trial, Rakai, Uganda
If circumcised men believe that they are protected from HIV there is a possibility that they will compensate for their perceived risk reduction by engaging in higher risk behaviours thereby mitigating any benefit of circumcision in preventing HIV infection. Some observational studies have shown that circumcised men engage in higher risk behaviours than uncircumcised men and the Orange Farm trial in South Africa found circumcised men to have sligh…
Disclosure of HIV results among discordant couples in Rakai, Uganda
Disclosure of HIV sero-positive results among HIV-discordant couples in sub-Saharan Africa is generally low. We describe a facilitated couple counselling approach to enhance disclosure among HIV-discordant couples. Using unique identifiers, 293 HIV-discordant couples were identified through retrospective linkage of married or cohabiting consenting adults individually enrolled into a cohort study and into two randomised trials of male circumcision…
Medicine (45 works) · Environmental health (30 works) · Population (30 works) · Demography (29 works) · HIV/AIDS Research and Interventions (23 works) · Adolescent Sexual and Reproductive Health (20 works) · Internal Medicine (13 works) · Sociology (13 works) · Demography (12 works) · Family medicine (12 works)