Screening for Speech and Language Delay and Disorders in Children: US Preventive Services Task Force Recommendation Statement.

Importance: Speech and language delays and disorders can pose significant problems for children and their families. Evidence suggests that school-aged children with speech or language delays may be at increased risk of learning and literacy disabilities, including difficulties with reading and writing. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate benefits and harms of screening for speech and language delay and disorders in children 5 years or younger. Population: Asymptomatic children 5 years or younger whose parents or clinicians do not have specific concerns about their speech, language, hearing, or development. Evidence Assessment: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for speech and language delay and disorders in children who do not present with signs or symptoms or parent/caregiver concerns. Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for speech and language delay and disorders in children 5 years or younger without signs or symptoms. (I statement).

Interventions to Prevent Falls in Community-Dwelling Older Adults: US Preventive Services Task Force Recommendation Statement.

Importance: Falls are the leading cause of injury-related morbidity and mortality among older adults in the US. In 2018, 27.5% of community-dwelling adults 65 years or older reported at least 1 fall in the past year and 10.2% reported a fall-related injury. In 2021, an estimated 38 742 deaths resulted from fall-related injuries. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the effectiveness and harms of primary care-relevant interventions to prevent falls and fall-related morbidity and mortality in community-dwelling adults 65 years or older. Population: Community-dwelling adults 65 years or older at increased risk of falls. Evidence Assessment: The USPSTF concludes with moderate certainty that exercise interventions provide a moderate net benefit in preventing falls and fall-related morbidity in older adults at increased risk for falls. The USPSTF concludes with moderate certainty that multifactorial interventions provide a small net benefit in preventing falls and fall-related morbidity in older adults at increased risk for falls. Recommendation: The USPSTF recommends exercise interventions to prevent falls in community-dwelling adults 65 years or older who are at increased risk for falls. (B recommendation) The USPSTF recommends that clinicians individualize the decision to offer multifactorial interventions to prevent falls to community-dwelling adults 65 years or older who are at increased risk for falls. Existing evidence indicates that the overall net benefit of routinely offering multifactorial interventions to prevent falls is small. When determining whether this service is appropriate for an individual, patients and clinicians should consider the balance of benefits and harms based on the circumstances of prior falls, presence of comorbid medical conditions, and the patient's values and preferences. (C recommendation).

Interventions for High Body Mass Index in Children and Adolescents: US Preventive Services Task Force Recommendation Statement.

Importance: Approximately 19.7% of children and adolescents aged 2 to 19 years in the US have a body mass index (BMI) at or above the 95th percentile for age and sex, based on Centers for Disease Control and Prevention growth charts from 2000. The prevalence of high BMI increases with age and is higher among Hispanic/Latino, Native American/Alaska Native, and non-Hispanic Black children and adolescents and children from lower-income families. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the evidence on interventions (behavioral counseling and pharmacotherapy) for weight loss or weight management in children and adolescents that can be provided in or referred from a primary care setting. Population: Children and adolescents 6 years or older. Evidence Assessment: The USPSTF concludes with moderate certainty that providing or referring children and adolescents 6 years or older with a high BMI to comprehensive, intensive behavioral interventions has a moderate net benefit. Recommendation: The USPSTF recommends that clinicians provide or refer children and adolescents 6 years or older with a high BMI (≥95th percentile for age and sex) to comprehensive, intensive behavioral interventions. (B recommendation).

Screening for Breast Cancer: US Preventive Services Task Force Recommendation Statement.

Importance: Among all US women, breast cancer is the second most common cancer and the second most common cause of cancer death. In 2023, an estimated 43 170 women died of breast cancer. Non-Hispanic White women have the highest incidence of breast cancer and non-Hispanic Black women have the highest mortality rate. Objective: The USPSTF commissioned a systematic review to evaluate the comparative effectiveness of different mammography-based breast cancer screening strategies by age to start and stop screening, screening interval, modality, use of supplemental imaging, or personalization of screening for breast cancer on the incidence of and progression to advanced breast cancer, breast cancer morbidity, and breast cancer-specific or all-cause mortality, and collaborative modeling studies to complement the evidence from the review. Population: Cisgender women and all other persons assigned female at birth aged 40 years or older at average risk of breast cancer. Evidence Assessment: The USPSTF concludes with moderate certainty that biennial screening mammography in women aged 40 to 74 years has a moderate net benefit. The USPSTF concludes that the evidence is insufficient to determine the balance of benefits and harms of screening mammography in women 75 years or older and the balance of benefits and harms of supplemental screening for breast cancer with breast ultrasound or magnetic resonance imaging (MRI), regardless of breast density. Recommendation: The USPSTF recommends biennial screening mammography for women aged 40 to 74 years. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening mammography in women 75 years or older. (I statement) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of supplemental screening for breast cancer using breast ultrasonography or MRI in women identified to have dense breasts on an otherwise negative screening mammogram. (I statement).

Primary Care Interventions to Prevent Child Maltreatment: US Preventive Services Task Force Recommendation Statement.

Importance: Child maltreatment, which includes child abuse and neglect, can have profound effects on health, development, survival, and well-being throughout childhood and adulthood. The prevalence of child maltreatment in the US is uncertain and likely underestimated. In 2021, an estimated 600 000 children were identified by Child Protective Services as experiencing abuse or neglect and an estimated 1820 children died of abuse and neglect. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate benefits and harms of primary care-feasible or referable behavioral counseling interventions to prevent child maltreatment in children and adolescents younger than 18 years without signs or symptoms of maltreatment. Population: Children and adolescents younger than 18 years who do not have signs or symptoms of or known exposure to maltreatment. Evidence Assessment: The USPSTF concludes that the evidence is insufficient to determine the balance of benefits and harms of primary care interventions to prevent child maltreatment in children and adolescents younger than 18 years without signs or symptoms of or known exposure to maltreatment. Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of primary care interventions to prevent child maltreatment. (I statement).

Environmental microbiome engineering for the mitigation of climate change.

Environmental microbiome engineering is emerging as a potential avenue for climate change mitigation. In this process, microbial inocula are introduced to natural microbial communities to tune activities that regulate the long-term stabilization of carbon in ecosystems. In this review, we outline the process of environmental engineering and synthesize key considerations about ecosystem functions to target, means of sourcing microorganisms, strategies for designing microbial inocula, methods to deliver inocula, and the factors that enable inocula to establish within a resident community and modify an ecosystem function target. Recent work, enabled by high-throughput technologies and modeling approaches, indicate that microbial inocula designed from the top-down, particularly through directed evolution, may generally have a higher chance of establishing within existing microbial communities than other historical approaches to microbiome engineering. We address outstanding questions about the determinants of inocula establishment and provide suggestions for further research about the possibilities and challenges of environmental microbiome engineering as a tool to combat climate change.

Screening for Lipid Disorders in Children and Adolescents: US Preventive Services Task Force Recommendation Statement.

Importance: Familial hypercholesterolemia and multifactorial dyslipidemia are 2 conditions that cause abnormally high lipid levels in children, which can lead to premature cardiovascular events (eg, myocardial infarction and stroke) and death in adulthood. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for lipid disorders in asymptomatic children and adolescents. Population: Asymptomatic children and adolescents 20 years or younger without a known diagnosis of a lipid disorder. Evidence Assessment: The USPSTF concludes that the current evidence is insufficient and the balance of benefits and harms for screening for lipid disorders in asymptomatic children and adolescents 20 years or younger cannot be determined. Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for lipid disorders in children and adolescents 20 years or younger. (I statement).

Preexposure Prophylaxis to Prevent Acquisition of HIV: US Preventive Services Task Force Recommendation Statement.

Importance: An estimated 1.2 million persons in the US currently have HIV, and more than 760 000 persons have died of complications related to HIV since the first cases were reported in 1981. Although treatable, HIV is not curable and has significant health consequences. Therefore, effective strategies to prevent HIV are an important public health and clinical priority. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of preexposure prophylaxis with antiretroviral therapy for the prevention of HIV acquisition, and the diagnostic accuracy of risk assessment tools to identify persons at increased risk of HIV acquisition. Population: Adolescents and adults who do not have HIV and are at increased risk of HIV. Evidence Assessment: The USPSTF concludes with high certainty that there is a substantial net benefit from the use of effective antiretroviral therapy to reduce the risk of acquisition of HIV in persons at increased risk of acquiring HIV. Recommendation: The USPSTF recommends that clinicians prescribe preexposure prophylaxis using effective antiretroviral therapy to persons at increased risk of HIV acquisition to decrease the risk of acquiring HIV. (A recommendation).

Screening for Anxiety Disorders in Adults: US Preventive Services Task Force Recommendation Statement.

Importance: Anxiety disorders are commonly occurring mental health conditions. They are often unrecognized in primary care settings and substantial delays in treatment initiation occur. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for anxiety disorders in asymptomatic adults. Population: Asymptomatic adults 19 years or older, including pregnant and postpartum persons. Older adults are defined as those 65 years or older. Evidence Assessment: The USPSTF concludes with moderate certainty that screening for anxiety disorders in adults, including pregnant and postpartum persons, has a moderate net benefit. The USPSTF concludes that the evidence is insufficient on screening for anxiety disorders in older adults. Recommendation: The USPSTF recommends screening for anxiety disorders in adults, including pregnant and postpartum persons. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for anxiety disorders in older adults. (I statement).

Screening for Depression and Suicide Risk in Adults: US Preventive Services Task Force Recommendation Statement.

Importance: Major depressive disorder (MDD), a common mental disorder in the US, may have substantial impact on the lives of affected individuals. If left untreated, MDD can interfere with daily functioning and can also be associated with an increased risk of cardiovascular events, exacerbation of comorbid conditions, or increased mortality. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate benefits and harms of screening, accuracy of screening, and benefits and harms of treatment of MDD and suicide risk in asymptomatic adults that would be applicable to primary care settings. Population: Asymptomatic adults 19 years or older, including pregnant and postpartum persons. Older adults are defined as those 65 years or older. Evidence Assessment: The USPSTF concludes with moderate certainty that screening for MDD in adults, including pregnant and postpartum persons and older adults, has a moderate net benefit. The USPSTF concludes that the evidence is insufficient on the benefit and harms of screening for suicide risk in adults, including pregnant and postpartum persons and older adults. Recommendation: The USPSTF recommends screening for depression in the adult population, including pregnant and postpartum persons and older adults. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for suicide risk in the adult population, including pregnant and postpartum persons and older adults. (I statement).

Screening and Preventive Interventions for Oral Health in Children and Adolescents Aged 5 to 17 Years: US Preventive Services Task Force Recommendation Statement.

Importance: Oral health is fundamental to health and well-being across the lifespan. Oral health conditions affect the daily lives of school-age children and adolescents, leading to loss of more than 51 million school hours every year. Untreated oral health conditions in children can lead to serious infections and affect growth, development, and quality of life. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate screening and preventive interventions for oral health conditions in children and adolescents aged 5 to 17 years. Population: Asymptomatic children and adolescents aged 5 to 17 years. Evidence Assessment: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for oral health conditions (eg, dental caries) performed by primary care clinicians in asymptomatic children and adolescents aged 5 to 17 years. The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of preventive interventions for oral health conditions (eg, dental caries) performed by primary care clinicians in asymptomatic children and adolescents aged 5 to 17 years. Recommendations: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of routine screening performed by primary care clinicians for oral health conditions, including dental caries, in children and adolescents aged 5 to 17 years. (I statement) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of preventive interventions performed by primary care clinicians for oral health conditions, including dental caries, in children and adolescents aged 5 to 17 years. (I statement).

Screening and Preventive Interventions for Oral Health in Adults: US Preventive Services Task Force Recommendation Statement.

Importance: Oral health is fundamental to health and well-being across the life span. Dental caries (cavities) and periodontal disease (gum disease) are common and often untreated oral health conditions that affect eating, speaking, learning, smiling, and employment potential. Untreated oral health conditions can lead to tooth loss, irreversible tooth damage, and other serious adverse health outcomes. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate screening and preventive interventions for oral health conditions in adults. Population: Asymptomatic adults 18 years or older. Evidence Assessment: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for oral health conditions (eg, dental caries or periodontal disease) performed by primary care clinicians in asymptomatic adults. The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of preventive interventions for oral health conditions (eg, dental caries or periodontal disease) performed by primary care clinicians in asymptomatic adults. Recommendations: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of routine screening performed by primary care clinicians for oral health conditions, including dental caries or periodontal-related disease, in adults. (I statement) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of preventive interventions performed by primary care clinicians for oral health conditions, including dental caries or periodontal-related disease, in adults. (I statement).

Folic Acid Supplementation to Prevent Neural Tube Defects: US Preventive Services Task Force Reaffirmation Recommendation Statement.

Importance: Neural tube defects are among the most common congenital malformations in the US, with an estimated 3000 pregnancies affected each year. Many of these neural tube defects are caused by low folate levels in the body. Objective: The US Preventive Services Task Force (USPSTF) commissioned a reaffirmation evidence update on the benefits and harms of folic acid supplementation. Population: Persons who are planning to or could become pregnant. Evidence Assessment: The USPSTF concludes that, for persons who are planning to or could become pregnant, there is high certainty that folic acid supplementation has a substantial net benefit to prevent neural tube defects in their offspring. Recommendation: The USPSTF recommends that all persons planning to or who could become pregnant take a daily supplement containing 0.4 to 0.8 mg (400 to 800 µg) of folic acid. (A recommendation).

Screening for Hypertensive Disorders of Pregnancy: US Preventive Services Task Force Final Recommendation Statement.

Importance: Hypertensive disorders of pregnancy are among the leading causes of maternal morbidity and mortality in the US. The rate of hypertensive disorders of pregnancy has been increasing from approximately 500 cases per 10 000 deliveries in 1993 to 1021 cases per 10 000 deliveries in 2016 to 2017. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for hypertensive disorders of pregnancy. Population: Pregnant persons without a known diagnosis of a hypertensive disorder of pregnancy or chronic hypertension. Evidence Assessment: The USPSTF concludes with moderate certainty that screening for hypertensive disorders in pregnancy with blood pressure measurements has substantial net benefit. Recommendation: The USPSTF recommends screening for hypertensive disorders in pregnant persons with blood pressure measurements throughout pregnancy. (B recommendation).

Associations between parent posttraumatic stress symptoms (PTSS) and later child PTSS: Results from an international data archive.

The extant literature indicates that parent and child posttraumatic stress symptoms (PTSS) are associated. However, the magnitude of this association at different time points and in the context of covariates has been difficult to quantify due to the methodological limitations of past studies, including small sample sizes. Using data from the Prospective studies of Acute Child Trauma and Recovery Data Archive, we harmonized participant-level parent and child data from 16 studies (N = 1,775 parent-child dyads) that included prospective assessment of PTSS during both the acute and later posttrauma periods (i.e., 1-30 days and 3-12 months after exposure to a potentially traumatic event, respectively). Parent and child PTSS demonstrated small-to-moderate cross-sectional, ρs = .22-.27, 95% CI [.16, .32], and longitudinal associations, ρ = .30, CI [.23, .36]. Analyses using actor-partner interdependence models revealed that parent PTSS during the acute trauma period predicted later child PTSS. Regression analyses demonstrated that parent gender did not moderate the association between parent and child PTSS. The findings suggest that parent PTSS during the acute and later posttrauma periods may be one of a constellation of risk factors and indicators for child PTSS.

Screening for Eating Disorders in Adolescents and Adults: US Preventive Services Task Force Recommendation Statement.

Importance: Eating disorders (eg, binge eating disorder, bulimia nervosa, and anorexia nervosa) are a group of psychiatric conditions defined as a disturbance in eating or eating-related behaviors that impair physical or psychosocial functioning. According to large US cohort studies, estimated lifetime prevalences for anorexia nervosa, bulimia nervosa, and binge eating disorder in adult women are 1.42%, 0.46%, and 1.25%, respectively, and are lower in adult men (anorexia nervosa, 0.12%; bulimia nervosa, 0.08%; binge eating disorder, 0.42%). Eating disorder prevalence ranges from 0.3% to 2.3% in adolescent females and 0.3% to 1.3% in adolescent males. Eating disorders are associated with short-term and long-term adverse health outcomes, including physical, psychological, and social problems. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for eating disorders in adolescents and adults with a normal or high body mass index. Evidence limited to populations who are underweight or have other physical signs or symptoms of eating disorders was not considered. The USPSTF has not previously made a recommendation on this topic. Population: Adolescents and adults (10 years or older) who have no signs or symptoms of eating disorders (eg, rapid weight loss, weight gain, or pronounced deviation from growth trajectory; pubertal delay; bradycardia; oligomenorrhea; and amenorrhea). Evidence Assessment: The USPSTF concludes that the evidence is insufficient to assess the balance of benefits and harms of screening for eating disorders in adolescents and adults. The evidence is limited and the balance of benefits and harms cannot be determined. Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for eating disorders in adolescents and adults. (I statement).

Collaboration and Shared Decision-Making Between Patients and Clinicians in Preventive Health Care Decisions and US Preventive Services Task Force Recommendations.

The US Preventive Services Task Force (USPSTF) works to improve the health of people nationwide by making evidence-based recommendations for preventive services. Patient-centered care is a core value in US health care. Shared decision-making (SDM), in which patients and clinicians make health decisions together, ensures patients' rights to be informed and involved in preventive care decisions and that these decisions are patient-centered. SDM has a role across the spectrum of USPSTF recommendations. For A or B recommendations (judged by the USPSTF to have high or moderate certainty of a moderate or substantial net benefit at the population level), SDM allows individual patients to decide whether to accept such services based on their personal values and preferences. For C recommendations (indicating at least moderate certainty of a small net benefit at the population level), SDM is critical for individual patients to decide whether the net benefit for them is worthwhile. For D recommendations (reflecting at least moderate certainty of a zero or negative net benefit) or I statements (low certainty of net benefit), clinicians should be prepared to discuss these services if patients ask. More evidence is needed to determine if, in addition to promoting patient-centeredness, SDM reduces inequities in preventive care, as well as to define new strategies to find time for discussion of preventive services in primary care.

Screening for Anxiety in Children and Adolescents: US Preventive Services Task Force Recommendation Statement.

Importance: Anxiety disorder, a common mental health condition in the US, comprises a group of related conditions characterized by excessive fear or worry that present as emotional and physical symptoms. The 2018-2019 National Survey of Children's Health found that 7.8% of children and adolescents aged 3 to 17 years had a current anxiety disorder. Anxiety disorders in childhood and adolescence are associated with an increased likelihood of a future anxiety disorder or depression. Objective: The US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening for anxiety disorders in children and adolescents. This is a new recommendation. Population: Children and adolescents 18 years or younger who do not have a diagnosed anxiety disorder or are not showing recognized signs or symptoms of anxiety. Evidence Assessment: The USPSTF concludes with moderate certainty that screening for anxiety in children and adolescents aged 8 to 18 years has a moderate net benefit. The USPSTF concludes that the evidence is insufficient on screening for anxiety in children 7 years or younger. Recommendation: The USPSTF recommends screening for anxiety in children and adolescents aged 8 to 18 years. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for anxiety in children 7 years or younger. (I statement).

Screening for Depression and Suicide Risk in Children and Adolescents: US Preventive Services Task Force Recommendation Statement.

Importance: Depression is a leading cause of disability in the US. Children and adolescents with depression typically have functional impairments in their performance at school or work as well as in their interactions with their families and peers. Depression can also negatively affect the developmental trajectories of affected youth. Major depressive disorder (MDD) in children and adolescents is strongly associated with recurrent depression in adulthood; other mental disorders; and increased risk for suicidal ideation, suicide attempts, and suicide completion. Suicide is the second-leading cause of death among youth aged 10 to 19 years. Psychiatric disorders and previous suicide attempts increase suicide risk. Objective: To update its 2014 and 2016 recommendations, the US Preventive Services Task Force (USPSTF) commissioned a systematic review to evaluate the benefits and harms of screening, accuracy of screening, and benefits and harms of treatment of MDD and suicide risk in children and adolescents that would be applicable to primary care settings. Population: Children and adolescents who do not have a diagnosed mental health condition or are not showing recognized signs or symptoms of depression or suicide risk. Evidence Assessment: The USPSTF concludes with moderate certainty that screening for MDD in adolescents aged 12 to 18 years has a moderate net benefit. The USPSTF concludes that the evidence is insufficient on screening for MDD in children 11 years or younger. The USPSTF concludes that the evidence is insufficient on the benefit and harms of screening for suicide risk in children and adolescents owing to a lack of evidence. Recommendation: The USPSTF recommends screening for MDD in adolescents aged 12 to 18 years. (B recommendation) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for MDD in children 11 years or younger. (I statement) The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for suicide risk in children and adolescents. (I statement).

Screening for Atrial Fibrillation: US Preventive Services Task Force Recommendation Statement.

Importance: Atrial fibrillation (AF) is the most common cardiac arrhythmia. The prevalence of AF increases with age, from less than 0.2% in adults younger than 55 years to about 10% in those 85 years or older, with a higher prevalence in men than in women. It is uncertain whether the prevalence of AF differs by race and ethnicity. Atrial fibrillation is a major risk factor for ischemic stroke and is associated with a substantial increase in the risk of stroke. Approximately 20% of patients who have a stroke associated with AF are first diagnosed with AF at the time of the stroke or shortly thereafter. Objective: To update its 2018 recommendation, the US Preventive Services Task Force (USPSTF) commissioned a systematic review on the benefits and harms of screening for AF in older adults, the accuracy of screening tests, the effectiveness of screening tests to detect previously undiagnosed AF compared with usual care, and the benefits and harms of anticoagulant therapy for the treatment of screen-detected AF in older adults. Population: Adults 50 years or older without a diagnosis or symptoms of AF and without a history of transient ischemic attack or stroke. Evidence Assessment: The USPSTF concludes that evidence is lacking, and the balance of benefits and harms of screening for AF in asymptomatic adults cannot be determined. Recommendation: The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of screening for AF. (I statement).