Johns Hopkins Bloomberg School Of Public Health

This study tested a program called Family Connections for HIV-positive youth ages 15 to 21 and their caregivers in Zambia. The goal was to help teens manage their HIV by improving family support and reducing self-stigma, leading to an undetectable viral load. Over 1,300 participa…

This study tested whether giving cash to families in food-insecure areas of Somalia could prevent malnutrition in children under 5 and their mothers. Over 3,300 families received different cash packages, and researchers measured children's weight, height, and arm size over 6 mont…

This study tested an online program called Help Wanted for men who are sexually attracted to children but have never acted on it. The goal was to give them skills and support to stay safe and avoid harming children. 147 men took part, answering surveys about their thoughts, feeli…

This study looked at how to make homes safer for children under 7 in low-income families. Researchers used a special checklist to find dangers like unlocked poisons, missing smoke alarms, and unsecured furniture. They then helped fix these hazards and tracked the costs. The goal …

This study tested whether cleaning therapy dogs with a special disinfectant before hospital visits can prevent the spread of dangerous germs like MRSA to children. Researchers enrolled 45 children and dogs in a hospital visitation program. The goal was to see if the disinfectant …

This study looked at whether offering a package of health services for teens—like counseling, vision checks, and deworming—alongside the HPV vaccine could increase vaccination rates among 9-year-old girls in Nigeria. Over 12,600 participants were surveyed before and after the pro…

This study looked at whether using adult day services (like adult daycare) can lower stress in Black caregivers of family members with dementia. 42 caregivers took part. Researchers measured stress with a questionnaire and also checked stress hormones in saliva. The goal was to s…

This study looked at how different marketing features of tobacco-free nicotine pouches influence what people think about them. Over 5,000 smokers and non-users in the US answered survey questions about how harmful, addictive, and appealing they found the products. The goal was to…

This study tested a program where people already on methadone were trained to become peer educators. They then reached out to friends or family in their social network who inject drugs and have HIV. The goal was to see if this approach could help more people enroll in drug treatm…

This study looked at how people understand and react to different food labels that show how sustainable or environmentally friendly a menu item is. Over 14,000 adults in the U.S. were shown a fast-food menu with one of seven label designs and then answered questions about what th…

This study looked at over 3,300 families in Ethiopia to see which combination of food, savings, and nutrition education programs helped improve household food security and child nutrition. Researchers compared three different program packages to find out which one worked best. Th…

This study looked at information from nearly 10,000 people to see if certain depression medications (duloxetine and vortioxetine) work better for specific groups. Researchers combined data from clinical trials and electronic health records to find patterns. The goal was to improv…

This study looked at which combinations of support programs work best to reduce suicidal thoughts and build strength in American Indian youth ages 10-29 who are at risk for suicide. Researchers compared programs like New Hope, Elders Resilience, and Case Management. The goal was …

This study looked at whether adding climate-impact labels (like carbon footprint info) to fast-food menus can influence people to choose healthier meals. Over 6,600 adults in the U.S. completed a mock online burger order. Researchers measured the nutritional quality of their sele…

This study looked at how different labels on fast-food menus affect people's understanding and choices about ultra-processed foods. Over 14,000 adults in the U.S. viewed a menu with one of sixteen label designs and answered questions about their reactions and purchase intentions.…