A selection of BMJ research highlights from July 18, 2020.

!----Prediabetes increases the risk of cardiovascular disease, especially in patients with a history of atherosclerosis: https://doi.org/10.1136/bmj.m2297, researchers recently examined the relationship between pre-diabetes and all-cause mortality and sudden cardiovascular disease risk in the general population and patients with a history of atherosclerosis cardiovascular diseasethe study was a systematic review and a meta-study, with 129 studies and a total of 10069,955 participantsin the general population, prediabetes was associated with an increased risk of total mortality (relative risk 1.13), compound cardiovascular disease (1.15), coronary heart disease (1.16) and stroke (1.14), with a median follow-up time of 9.8 yearsthe difference in the overall risk of prediabetes mortality, compound cardiovascular disease, coronary heart disease and stroke was 7.36/10,000 people-years, 8.75/10,000-years, 6.59/10000-years and 3.68/10000-years, respectively, compared to normal blood sugar participantspeople with abnormal sugar tolerance inhad a higher risk of all-cause mortality, coronary heart disease and stroke than those with fasting blood glucose abnormalitiesin patients with atherosclerosis cardiovascular disease, prediabetes was associated with an increased risk of general-cause mortality (relative risk 1.36), complex cardiovascular disease (1.37) and coronary heart disease (1.15), with a median follow-up time of 3.2 years, but no significant difference in stroke risk (1.05)the difference in the total risk of pre-diabetes associated with atherosclerotic cardiovascular disease, compound cardiovascular disease, coronary artery disease and stroke was 66.19/10,000 people-years, 189.77/10000 people-years, 40.62/10000 people and 8.54/10000 years, respectively, compared to normal blood sugarthe impact of national dietary guidelines on health and sustainable development: https://doi.org/10.1136/bmj.m2322, researchers recently examined the health and environmental impacts of dietary guidelines (FBDGS) in 83 countries and compared them with global health and environmental goalsresearchers assess environmental impacts through dietary-induced greenhouse gas emissions, freshwater use, farm use, and fertilizer application, and the health impact of diet on chronic diseasesadoptthed the World Health Organization and EAT-Lancet's global dietary recommendations as criteria for healthy eating, and the environmental impact assessment criteria include the Agenda for Action on Noncommunicable Diseases, the Paris Climate Agreement, land-use-related biodiversity targets, and sustainable development goals related to freshwater use and fertilizer applicationswhen compared to global standards, most national guidelines (83,98 per cent) are inconsistent with at least one global health and environmental objectiveabout one third (29,34 per cent) of FBDGs did not meet the agenda on noncommunicable diseases, and most did not meet the Paris Climate Agreement (57-74 per cent) and other environmental targets (67-87 per cent), by contrast, the EAT-Lancet guideline could reduce premature mortality by more than 34 per cent and reduce greenhouse gas emissions by more than three times, according to the EAT-Lancet guidelines, the UK, the US and China's FBDGs do not meet climate change, land use, freshwater and nitrogen targets, and adopting THE EAT-Lancet's recommended guidelines could increase the number of premature deaths in the UK from 78,000 to 104,000, the US from 480,000 to 585,000 and China from 149,000 to 802,0003 Roboticvs laparoscopic abdominal amortisation vs patient prognosis doi: https://doi.org/10.1136/bmj.m2457 Recently researchers compared the effects of robotic abdominal amortum and laparoscopic repair on the number of days of hospital stay in patients after surgery study was conducted at the multidisciplinary argon clinic in Houston, USA, with 124 patients with minimally invasive abdominal synia performing, and randomly received robotic abdominal amortis (n-65) or laparoscopic abdominal repair (n-59) main result was the number of days spent in hospital within 90 days of surgery secondary results include emergency visits, surgery time, wound complications, recurrence of radon, resurgery, abdominal wall quality of life, and the cost of the health care system 123 (99%) patients completed 90-day follow-up there was no significant difference in the number of days of hospitalization in the two groups of (median 0.90) there was no difference in the rate of inter-group emergency department visits, wound complications, recurrence of radon, or resurgery in the case of secondary results, but the duration of the operation for robotic repair was longer (141 v 77 min; average difference was 62.89 min), and the medical cost was higher ($15,865 v$12955; cost ratio was 1.21; the adjusted absolute cost difference was $2767) in the robot groin repair surgery patients, 2 cases had a bowel incision, while the laparoscopic repair group did not the median improvement score of abdominal wall quality of life in 1 month after surgery, the robot abdominal repair group was 3 points, and the laparoscopic repair group was 15 points Source: MedSci Original, !-- Content Presentation Ends -- !-- Determine Signed-off-