diet

Celiac disease is frequently undiagnosed, in part because of its highly variable clinical presentation.

Celiac disease can present with classic gastrointestinal symptoms (e.g., diarrhea, abdominal pain, bloating, weight loss), atypical or extraintestinal manifestations (e.g., anemia, osteoporosis, neurologic symptoms, infertility, fatigue) or asymptomatic presentations detected from screening.

The first-line serologic screening test measures tissue transglutaminase immunoglobulin A and should be conducted while the patient is consuming gluten.

Complications of celiac disease include nutritional deficiencies, osteoporosis, increased risk of viral infections and pneumonia, and, rarely, risk of malignancy.

Adherence to a lifelong, strict gluten-free diet with regular monitoring of disease activity and nutritional status is key for symptom management and to prevent complications.

Objective: To assist busy primary care providers caring for infants and young children and their families by providing them with the most recent recommendations and supportive evidence included in the 2024 edition of the Rourke Baby Record (RBR).

Quality of evidence: Articles from pediatric preventive care literature (January 2019 to March 2023) were reviewed for relevance and quality of evidence. When available, evidence from systematic reviews, relevant clinical guidelines, and clinical trials were incorporated. In the absence of high-level evidence, observational studies and expert opinion on the topic were included. Primary research studies were reviewed and critically appraised using a modified protocol.

Main message: Notable updates in the 2024 edition of the RBR include the promotion of early relational health for families; identification of targeted support and resources as opposed to labelling of high-risk groups; guidance on culturally safe care; clarification and evidence-based adjustments of the age of achievement of some developmental surveillance milestones; recommendations on plant-based beverages, vegetarian, and vegan diets; screening considerations for iron deficiency; dangers of ingestion of button batteries and cannabis edibles; literacy and socioemotional benefits of reading, singing, and storytelling; the importance of unstructured outdoor play; the environment's effect on children's health; the significance of sentinel injuries; acholic stools; and the normal presence and abnormal persistence of developmental (primitive) reflexes.

Conclusion: Building on its 40-year history, the 2024 RBR provides freely available, evidence-informed recommendations to guide clinicians in providing effective, up-to-date, and comprehensive preventive pediatric care. Despite the challenging and evolving landscape of primary health care delivery, the RBR will continue to support primary care providers.

Lipoprotein(a) is a low-density lipoprotein-like particle that carries oxidized phospholipids and has proinflammatory and proatherogenic properties. In prospective studies, higher levels of lipoprotein(a) are associated with significantly higher risk of atherosclerotic cardiovascular disease (ASCVD) and all-cause mortality.1 In a meta-analysis of 29 069 patients, the incidence of ASCVD events per 1000 person-years was 80.0 (95% CI, 75.3-84.9) among people with lipoprotein(a) greater than or equal to 50 mg/dL and 55.3 (95% CI, 53.4-57.3) for people with lipoprotein(a) less than 15 mg/dL (adjusted hazard ratio, 1.35 [95% CI, 1.11-1.66]).2 A similar association of elevated lipoprotein(a) with ASCVD was observed among 460 506 participants from the UK Biobank study.3 Medications such as pelacarsen, olpasiran, and lepodisiran reduce lipoprotein(a) production in the liver and lower plasma lipoprotein(a) by up to 99%, and are currently undergoing testing in randomized clinical trials to determine whether they reduce rates of ASCVD in people with elevated lipoprotein(a).4

Importance: Approximately 55 million people in the US and approximately 1.1 billion people worldwide are postmenopausal women. To inform clinical practice about the health effects of menopausal hormone therapy, calcium plus vitamin D supplementation, and a low-fat dietary pattern, the Women's Health Initiative (WHI) enrolled 161 808 postmenopausal US women (N = 68 132 in the clinical trials) aged 50 to 79 years at baseline from 1993 to 1998, and followed them up for up to 20 years.

Observations: The WHI clinical trial results do not support hormone therapy with oral conjugated equine estrogens plus medroxyprogesterone acetate for postmenopausal women or conjugated equine estrogens alone for those with prior hysterectomy to prevent cardiovascular disease, dementia, or other chronic diseases. However, hormone therapy is effective for treating moderate to severe vasomotor and other menopausal symptoms. These benefits of hormone therapy in early menopause, combined with lower rates of adverse effects of hormone therapy in early compared with later menopause, support initiation of hormone therapy before age 60 years for women without contraindications to hormone therapy who have bothersome menopausal symptoms. The WHI results do not support routinely recommending calcium plus vitamin D supplementation for fracture prevention in all postmenopausal women. However, calcium and vitamin D are appropriate for women who do not meet national guidelines for recommended intakes of these nutrients through diet. A low-fat dietary pattern with increased fruit, vegetable, and grain consumption did not prevent the primary outcomes of breast or colorectal cancer but was associated with lower rates of the secondary outcome of breast cancer mortality during long-term follow-up.

Conclusions and relevance: For postmenopausal women, the WHI randomized clinical trials do not support menopausal hormone therapy to prevent cardiovascular disease or other chronic diseases. Menopausal hormone therapy is appropriate to treat bothersome vasomotor symptoms among women in early menopause, without contraindications, who are interested in taking hormone therapy. The WHI evidence does not support routine supplementation with calcium plus vitamin D for menopausal women to prevent fractures or a low-fat diet with increased fruits, vegetables, and grains to prevent breast or colorectal cancer. A potential role of a low-fat dietary pattern in reducing breast cancer mortality, a secondary outcome, warrants further study.