Different strategies for diagnosing gestational diabetes mellitus (GDM) to improve maternal and infant health
Different strategies for using topical corticosteroids for established eczema
Different surgical approaches to access the infrarenal abdominal aorta during an operation to repair an abdominal aortic aneurysm
Different surgical techniques for treating blockage of the tear duct
Different systemic corticosteroid regimens for the emergency management of acute asthma
Different techniques of blood glucose monitoring in women with gestational diabetes for improving maternal and infant health
Different treatments for a squint (deviation of the eye) that occurs within the first six months of life
Different types of dietary advice for women with gestational diabetes mellitus
Different types of energy source surgical instruments used in key-hole bowel surgery
Different types of implants for reconstructive breast surgery after mastectomy
Different types of intermittent pneumatic compression devices for preventing venous thromboembolism after total hip replacement
Different types of intranasal steroids for chronic rhinosinusitis
Different types of percutaneous endovascular interventions for acute ischemic stroke
Different types of powered toothbrushes for plaque control and healthy gums
Different ways of giving antibiotics to eradicate Pseudomonas aeruginosa infection in people with cystic fibrosis
Different-sized incisions for cataract surgery in people with age-related cataract
Digital behavioural interventions for people with sickle cell disease
Digital interventions for people with chronic obstructive pulmonary disease (COPD)
Digital interventions to improve adherence to maintenance medication in asthma
Digital retinal imaging for diagnosing diabetic retinopathy
Digital serious games for emotional recognition in people with autism spectrum disorder
Digital technology for delivering and monitoring exercise programs for people with cystic fibrosis
Digital technology for early identification of exacerbations in people with cystic fibrosis
Digital technology for monitoring adherence to inhaled therapies in people with cystic fibrosis
Digital tracking, provider decision support systems, and targeted client communication via mobile devices to improve primary health care
Digitalis for treatment of heart failure in patients in sinus rhythm
Digoxin for preventing or treating neonatal respiratory distress syndrome
Dihydroartemisinin-piperaquine for treating uncomplicated malaria
Dihydrocodeine in a single dose in the treatment of acute postoperative pain
Dilute versus full-strength formula in exclusively formula-fed preterm or low birth weight infants
Dimebon for Alzheimer's disease
Dimethyl fumarate (BG-12) first line oral treatment for people with multiple sclerosis
Dipeptidyl peptidase-4 (DPP-4) inhibitors for type 2 diabetes mellitus
Dipeptidyl-peptidase (DPP)-4 inhibitors and glucagon-like peptide (GLP)-1 analogues for prevention or delay of type 2 diabetes mellitus
Diposable nappies for preventing nappy rash in babies and infants.
Dipyridamole for preventing stroke and other vascular events in patients with vascular disease
Dipyrone for the treatment of headaches
Direct (primary) repair for penetrating colon injuries
Direct comparison of two antipsychotics (chlorpromazine versus clotiapine) for treating schizophrenia
Direct electrical current to the brain for language difficulties after stroke 
Direct electrical current to the brain to improve rehabilitation outcomes
Direct factor Xa inhibitors versus low molecular weight heparins or vitamin K antagonists for prevention of venous thromboembolism in elective primary hip or knee replacement or hip fracture repair
Direct injection of corticosteroids into the fetus compared with injection into the mother for improving fetal outcomes when the mother is at risk of preterm birth
Direct oral anticoagulants for prevention of stroke in atrial fibrillation patients with chronic kidney disease
Direct renin inhibitors for preventing the progression of diabetic kidney disease
Direct thrombin inhibitors and factor Xa inhibitors for atrial fibrillation
Direct thrombin inhibitors compared with vitamin K antagonists in people with atrial fibrillation for preventing stroke
Direct versus indirect bonding for bracket placement in orthodontic patients
Direct versus indirect veneer restorations for intrinsic dental stains
Direct-acting antivirals for chronic hepatitis C
Directly observing people with TB take their drugs to help them complete their treatment
Director of Cochrane South Africa honoured
Discharge planning from hospital
Disclosing to parents newborn carrier status identified by routine blood spot screening
Discontinuation of epidural analgesia late in labour for reducing the adverse delivery outcomes associated with epidural analgesia
Discontinuation of intravenous oxytocin used to stimulate uterine contractions in the active phase of induced labour
Discounts announced for Latin American Colloquium registrants
Disease management interventions for improving self-management in lower-limb peripheral arterial disease
Disease management programmes for heart failure
Disease modifying immunosuppressant drugs for juvenile-onset systemic lupus erythematosus
Disease-modifying anti-rheumatic drugs (DMARDs) for Sjogren’s syndrome
Disease-modifying anti-rheumatic drugs for rheumatoid arthritis: a systematic review and network meta-analysis
Disease-modifying drugs for people with a first clinical attack suggestive of multiple sclerosis
Disease-modifying therapy for HIV-related distal symmetrical polyneuropathy (including antiretroviral toxic neuropathy)
Disposable surgical face masks for preventing surgical wound infection in clean surgery
Dissection versus diathermy for tonsillectomy
Distal aortic perfusion during thoracoabdominal aneurysm repair for prevention of paraplegia
Distraction techniques for schizophrenia
Disulfiram as a medication for the treatment of cocaine dependence
Disulfiram for alcohol use disorder
Diuretic therapy for newborn infants with posthemorrhagic ventricular dilatation
Diuretics acting on the distal renal tubule for preterm infants with (or developing) chronic lung disease
Diuretics effective in lowering blood pressure when given as a second drug
Diuretics for heart failure in adults
Diuretics for people with chronic kidney disease
Diuretics for preventing pre-eclampsia
Diuretics for respiratory distress syndrome in preterm infants
Diuretics for the treatment of Ménière's disease or syndrome
Diuretics for transient tachypnoea of the newborn (TTN)
Diverse strategies for preventing high altitude illness
DNA technology increases pregnancy rate for women on IVF
Do a group of drugs known as monoaminergic agonists help the brain recovery after a severe injury?
Do activity monitors help adults with stroke become more physically active?
Do acupuncture and related therapies help smokers who are trying to quit
Do additional surgical techniques at the lower end of bypasses in the leg improve the chance of the bypass working and saving the leg from amputation?
Do antibiotics prevent surgical site infection after breast cancer surgery?
Do antifungal medicines for vaginal yeast infections (thrush) work better if taken by mouth (orally) or placed in the vagina (intravaginally)?
Do antipsychotic medicines reduce  agitated behaviour and psychotic symptoms in people with Alzheimer's disease and vascular dementia?
Do any treatments help people who have successfully quit smoking to avoid starting smoking again?
Do azole medicines taken as a cream or drops work for treating otomycosis (a fungal ear infection)?
Do bans on smoking and intensive educational campaigns reduce smoking in public places
Do beds, mattresses and mattress toppers that apply constant pressure to the skin and are not air-filled or made of foam prevent pressure ulcers?
Do beds, mattresses and mattress toppers with air-filled surfaces that apply constant pressure to the skin prevent pressure ulcers?
Do beds, mattresses and mattress toppers with air-filled surfaces that regularly redistribute pressure under the body prevent pressure ulcers?
Do blood thinner injections given after abdominal surgery further reduce blood clots if continued after discharge from the hospital?
Do blood thinners prevent blood clots in children who are treated using central lines?
Do blood thinners prevent people who are hospitalised with COVID-19 from developing blood clots?
Do blood thinners prevent people who are hospitalised with COVID‐19 from developing blood clots?
Do burns patients who receive early (within 24 hours) nutritional support have better outcomes than those whose nutritional support is delayed (after 24 hours)?
Do combined inhalers (steroid plus bronchodilator) offer additional benefits or harms in people with COPD compared with the bronchodilator alone?
Do competitions help smokers to quit in the medium to long term?
Do courses aimed at improving the way healthcare professionals communicate with people who have cancer impact on their physical and mental health?
Do diet and physical activity strategies help prevent obesity in children (aged 0 to 18 years)?
Do different settings and techniques for measuring blood pressure during pregnancy help to improve outcomes for women and babies?
Do education and training programs reduce aggressive behavior toward healthcare workers?
Do electronic or robotic gait-training devices help people walk better after a stroke?
Do epidermal growth factor receptor (EGFR) inhibitors, alone or with chemotherapy, improve outcomes for women with epithelial ovarian cancer (EOC)?
Do group-based smoking cessation programmes help people to stop smoking?
Do H1 antihistamine tablets or liquids help improve eczema symptoms in people who are already using creams or ointments for their eczema?
Do health education interventions lead to early treatment for women with symptoms of endometrial (womb) cancer
Do health promotion programmes in the workplace increase people's physical activity if they include a pedometer?
Do heated tobacco products help people to quit smoking, are they safe for this purpose, and have they led to falls in smoking rates?
Do incentives help keep young people from starting to smoke in the medium to long term?
Do inhaled corticosteroids reduce growth in children with persistent asthma?
Do inhaled steroids increase the risk of pneumonia in people with chronic obstructive pulmonary disease (COPD)?
Do injectable pneumococcal vaccines prevent pneumonia in people with COPD?
Do interventions in families prevent children and adolescents from starting to smoke
Do interventions that reduce the cost of smoking cessation treatment increase quit rates, quit attempts or use of treatments?
Do interventions to enhance one-to-one support provided by partners, family members, or 'buddies' help smokers quit?
Do invitations, lay health worker interventions and educational interventions increase the uptake of cervical screening?
Do local anaesthetic nerve blocks provide effective pain relief for adults with a hip fracture?
Do magnesium sulfate infusions reduce the need for hospital admission in adults with acute asthma?
Do magnesium sulfate infusions reduce the need for hospital admission in children with acute asthma?
Do mattresses and mattress toppers made of foam prevent pressure ulcers?
Do measures that aim to reduce aerosol production during dental procedures prevent the transmission of infectious diseases?
Do media campaigns prevent young people from using illicit drugs?
Do medicinal interventions reduce radiation-related bone fractures and risk of avascular necrosis in adults undergoing pelvic radiotherapy?
Do medicines for weight loss affect blood pressure, and reduce the effects of high blood pressure (hypertension)?
Do medicines used to treat depression help people to quit smoking?
Do nasal decongestants used alone relieve cold symptoms?
Do newer laser treatments work better than standard laser treatments for proliferative diabetic retinopathy?
Do nonsteroidal anti-inflammatory drugs (NSAIDs) increase the risk of bleeding in children having their tonsils out?
Do nutritional interventions reduce gastrointestinal toxicity in adults undergoing radical pelvic radiotherapy?
Do opioid antagonists such as naltrexone help people to stop smoking?
Do organizational changes to support people quitting smoking improve services and help more people to quit?
Do painkillers rubbed on the skin really work?
Do PARP inhibitors improve survival in women with ovarian cancer, and what are the side effects?
Do patients manage their health care better if they can access their electronic health records?
Do people recover from exacerbations of chronic obstructive pulmonary disease (COPD) better in their own home than in the hospital emergency room?
Do people with asthma have fewer serious adverse events when taking formoterol and inhaled corticosteroids compared to salmeterol and inhaled corticosteroids?
Do people with type 1 diabetes mellitus benefit from using a different type of insulin as their basal insulin?
Do pharmacological and non-pharmacological strategies reduce weight in obese women with subfertility?
Do pharmacotherapies which reduce anxiety help smokers to quit
Do physical activity interventions in outside-school hours care services help increase children's overall daily physical activity?
Do physical measures such as hand-washing or wearing masks stop or slow down the spread of respiratory viruses?
Do pressure redistributing static chairs help to prevent pressure ulcers?
Do printed self-help materials help people to quit smoking?
Do probiotics help to treat acute infectious diarrhoea?
Do psychological and social interventions prevent mental health disorders in low- and middle-income countries affected by humanitarian crises?
Do psychological interventions work for people with both depression and substance use disorders?
Do psychological therapies help diabetic foot ulcers to heal and prevent their recurrence?
Do psychosocial interventions help parents reduce how often they drink heavily or use drugs?
Do school tobacco policies prevent uptake of smoking?
Do school-based physical activity interventions increase moderate to vigorous physical activity and improve physical fitness among children and adolescents?
Do smoking bans at an institutional level help to stop people smoking?
Do speed cameras reduce road traffic crashes, injuries and deaths?
Do statins prevent kidney failure in adults after surgery where cardiac bypass is used?
Do supportive, educational and behavioural interventions improve usage of continuous positive airway pressure in adults with obstructive sleep apnoea?
Do synbiotics prevent necrotising enterocolitis in very preterm or very low birth weight infants?
Do systemic corticosteroids improve treatment outcomes in flare-ups of chronic obstructive pulmonary disease?
Do tobacco cessation interventions provided during substance abuse treatment or recovery help tobacco users to quit?
Do vaginal packing, tranexamic acid, interventional radiology or other interventions control vaginal bleeding in women with advanced cervical cancer?
Do ventilators that manage the reduction of ventilator support (weaning) reduce the duration of weaning compared to strategies managed by clinicians?
Do video-assisted instruments for inserting breathing tubes in adults work better than direct-view instruments and do they cause unwanted effects?
Do weight loss programs have beneficial effects on asthma outcomes in people with asthma?
Do weight-loss diets affect blood pressure, and reduce the effects of high blood pressure (hypertension)?
Doctors and patients making decisions together could reduce the number of antibiotics prescribed for acute respiratory infections
Does 5-ASA prevent the recurrence of diverticulitis?
Does a combination of stop smoking medication and behavioural support help smokers to stop?
Does a group of drugs known as calcium channel blockers reduce mortality and unfavourable complications in patients with traumatic brain injury?
Does a local anaesthetic injection in children and young people having dental treatment under general anaesthetic reduce pain after treatment?
Does a tax on the fat content of foods reduce obesity and help people to eat less fat and less saturated fat?
Does adding a long-acting muscarinic antagonist (LAMA) to an inhaled steroid help people with uncontrolled asthma more than an inhaled steroid alone?
Does adding antileukotriene agents to usual care when people are suffering an asthma attack in the emergency department help?
Does adding iron to wheat flour reduce anaemia and increase iron levels in the general population?
Does adding tiotropium, a long-acting muscarinic antagonist (LAMA), to combination therapy (LABA/ICS) help to control asthma?
Does administering colony-stimulating factors plus antibiotics in people with fever and low white cell count reduce hospitalization?
Does advice from doctors encourage people who smoke to quit
Does altering dietary salt intake aid in the prevention and treatment of diabetic kidney disease?
Does altering the dose of inhaled corticosteroids make a difference in growth among children with asthma?
Does an aminophylline injection in addition to bronchodilators for an asthma attack improve lung function and other outcomes or cause harm?
Does banning or restricting advertising for alcohol result in less drinking of alcohol?
Does behavioural support help people to stop smoking?
Does breastfeeding reduce vaccination pain in babies aged 1 to 12 months?
Does chewing gum after a caesarean section lead to quicker recovery of bowel function?
Does chromoscopy (dye-spraying) improve rates of polyp detection when compared to conventional colonoscopy?
Does cleaning hands with ash stop or reduce the spread of viral and bacterial infections compared with soap or other materials?
Does cleaning venous leg ulcers help them to heal?
Does clonidine help smokers to quit
Does communicating DNA-based risk estimates motivate people to change their behaviour?
Does controlling exposure to house dust mites improve asthma?
Does Daikenchuto reduce postoperative ileus in persons undergoing elective abdominal surgery?
Does daily sedation interruption reduce the time critically ill adults spend on breathing machines compared to other sedation strategies?
Does daily treatment with formoterol result in more serious adverse events compared to placebo or daily salbutamol?
Does daily treatment with salmeterol result in more serious adverse events compared with placebo or a salbutamol?
Does delaying cord clamping or using cord milking at birth improve the health of babies born too early?
Does delivery of home care by outreach nurses improve outcomes for people with chronic obstructive pulmonary disease?
Does denser compared to normal bupivacaine, given as a lower back injection, give more effective and safer anaesthesia during caesarean section
Does dermoscopy improve the accuracy of diagnosing basal cell or squamous cell skin cancer (BCC or cSCC) compared to using the naked eye alone?
Does dietary fibre prevent the recurrence of colorectal adenomas and carcinomas?
Does electromagnetic field stimulation help heal fractures that are failing or have failed to heal?
Does encouraging people to wash their hands stop them having diarrhoea?
Does enhanced external counterpulsation reduce symptoms of chronic and refractory angina pectoris?
Does extended-field radiotherapy reduce death from locally advanced cervical cancer and what are the side effects?
Does giving chemotherapy before surgery improve survival or quality of life for women with advanced ovarian epithelial cancer?
Does giving chemotherapy straight away or waiting for symptoms prolong life for persons who have incurable colorectal cancer without symptoms?
Does giving chemotherapy, radiotherapy or both improve survival in people with rare (anaplastic oligodendrogliomas and oligoastrocytomas) brain tumours?
Does giving daily small, steadily increasing amounts of egg protein help people with egg allergy?
Does giving money to people, in low- and middle-income countries, without conditions attached lead to better health and other life improvements?
Does giving patients carbohydrate supplements before planned surgery lead to improved recovery?
Does giving people feedback on the effects of smoking on their body help them quit smoking?
Does group therapy improve well-being in people living with HIV?
Does haemodialysis membrane type influence outcomes in people with kidney disease?
Does hair removal before surgery prevent infections after surgery?
Does hormone therapy help transgender women undergoing gender reassignment to transition?
Does HPV vaccination prevent the development of cervical cancer? Are there harms associated with being vaccinated?
Does hyperbaric oxygen therapy improve outcome after heart attack?
Does hyperbaric oxygen therapy improve the survival and quality of life in patients with traumatic brain injury?
Does hypnotherapy help people who are trying to stop smoking?
Does individually-delivered counselling help people to stop smoking?
Does legislation to ban smoking reduce exposure to secondhand smoke and smoking behaviour?
Does limiting the times you eat (intermittent fasting) prevent cardiovascular disease?
Does mecamylamine help people to stop smoking
Does moisturising baby skin prevent eczema or food allergies?
Does monitoring oxygen level with a pulse oximeter during and after surgery improve patient outcomes?
Does more support increase success amongst people using medications to quit smoking?
Does motivational interviewing help people to quit smoking?
Does Nicobrevin help people to stop smoking
Does perioperative blood transfusion affect the recurrence rate of potentially curable operations for colorectal cancer?
Does personalised advice via computer or mobile devices reduce heavy drinking?
Does physical exercise have beneficial or harmful effects in cirrhosis?
Does physiotherapy improve pain and disability in adults with complex regional pain syndrome?
Does pioglitazone prevent or delay type 2 diabetes and its complications in people at risk of developing type 2 diabetes mellitus?
Does placing a tiny tube (microstent) under the surface of the eye relieve long-lasting high pressure inside the eye (glaucoma)?
Does platelet-rich plasmapheresis (PRP) reduce the need for donor blood
Does pre-transfusion washing of red blood cells for preterm babies improve their health outcomes?
Does preconception lifestyle advice help people with infertility to have a baby?
Does prophylactic mesh placement around a stoma prevent the development of future hernia and general patient discomfort?
Does quarantine, alone or in combination with other public health measures, control coronavirus (COVID-19)?
Does quit-smoking support delivered by community pharmacy staff help people to stop smoking?
Does random drug and alcohol testing prevent injuries in workers?
Does reducing the amount of salt in a diet improve asthma symptoms?
Does reduction of dialysate temperature affect blood pressure during haemodialysis?
Does reminding people to have vaccinations increase the number of people who receive vaccinations?
Does repair of torn rotator cuff tendons work?
Does silver acetate help people stop smoking
Does smoking in a way that is unpleasant help smokers to quit
Does special assessment of older people getting surgery improve their recovery after surgery?
Does statin therapy improve survival or reduce risk of heart disease in people on dialysis?