TY - JOUR AU - H. Hiscock AU - C. Moore AU - S. Khano AU - L. A. Sanci AU - K. M. Dalziel AU - G. Freed AU - D. I. R. Boyle AU - Meyers Morris AU - S. T. Liaw AU - J. Le AU - Y. A. Zurynski AU - S. Woolfenden AU - R. Lingam A1 - AB - OBJECTIVES: To assess the effectiveness of Strengthening Care for Children (SC4C) for reducing the number of referrals by general practitioners of patients under 18 years of age to hospital services. STUDY DESIGN: Stepped-wedge cluster randomised trial; data collected for up to 16 months after the intervention. SETTING: General practices in North Western Melbourne and Central and Eastern Sydney primary health networks, 1 May 2021-30 September 2023. PARTICIPANTS: General practitioners who worked at least two clinical sessions each week, saw patients under 18 years of age, and for whom at least 1 month of referrals data during the control period were available; families of people under 18 years attending these practices. INTERVENTION: Weekly (6 months) then fortnightly (6 months) general practitioner-paediatrician co-consultations; monthly paediatrician-led case discussions; weekday phone and email support by paediatricians. MAIN OUTCOME MEASURES: Proportion of general practitioner visits in which patients were referred to publicly funded hospital outpatient clinics or emergency departments (patient level), overall and by baseline referral rate. SECONDARY OUTCOMES: Referrals after completion of the intervention; general practitioner confidence regarding child health care; low value care for frequent childhood conditions; family preference for general practitioner or paediatrician care. RESULTS: One hundred and thirty participating general practitioners from 22 general practices conducted 50,101 consultations during the control period; 125 general practitioners from 21 general practices received the intervention and undertook 96,804 consultations. Patients were referred to hospitals in 2.3% of control period consultations and 1.9% of intervention period consultations (risk difference, -0.34 [95% confidence interval {CI}, -0.69 to 0.004] percentage points). Among general practitioners with high referral rates at baseline (5% or higher), patients were referred to hospital outpatient or emergency department in 7.3% of control period consultations and in 3.0% of intervention period consultations (risk difference, -4.28 [95% CI, -6.59 to -1.97] percentage points); the referral rate was also lower after the intervention period (sustainability vs. control periods: 2.9% vs. 5.8%; risk difference, -2.92 [95% CI, -5.36 to -0.48] percentage points). The proportions of general practitioners confident about their knowledge and skills regarding child health care were larger during the intervention than the control period. Quality of care and family preference for general practitioner-led care for their children remained high across the study. No adverse events were recorded. CONCLUSION: Strengthening primary care for children reduces the frequency of hospital referrals of children by general practitioners with high referral rates, increases rates of general practitioner confidence about caring for children and maintains family preference for general practitioner-led care. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12620001299998 (prospective).; THE KNOWN: The demand for hospital outpatient and emergency services for children is rising in high income countries. Integrated care models in which paediatricians support care by general practitioners could reduce the number of hospital referrals. THE NEW: An integrated general practitioner–paediatrician model did not reduce hospital referrals overall, but sustainably reduced referrals of children by general practitioners who had previously referred 5% or more of patients under 18 years of age. THE IMPLICATIONS: To relieve pressure on hospitals and improve equitable access to specialist care, this care model could be expanded to include general practices in areas with high numbers of children and general practitioners with high referral rates.; eng AD - Murdoch Children's Research Institute, Melbourne, Victoria, Australia.; The University of Melbourne, Melbourne, Victoria, Australia.; Centre for Health Policy, The University of Melbourne, Melbourne, Victoria, Australia.; University of Michigan, Ann Arbor, Michigan, USA.; The University of New South Wales, Sydney, New South Wales, Australia.; Australian Institute of Health Innovation, Macquarie University, Sydney, New South Wales, Australia.; The University of Sydney, Sydney, New South Wales, Australia.; Sydney Children's Hospitals Network, Sydney, New South Wales, Australia. AN - 41391012 BT - Med J Aust C5 - Healthcare Disparities CP - 1 DA - Jan DO - 10.5694/mja2.70115 DP - NLM ET - 20251214 IS - 1 JF - Med J Aust LA - eng N2 - OBJECTIVES: To assess the effectiveness of Strengthening Care for Children (SC4C) for reducing the number of referrals by general practitioners of patients under 18 years of age to hospital services. STUDY DESIGN: Stepped-wedge cluster randomised trial; data collected for up to 16 months after the intervention. SETTING: General practices in North Western Melbourne and Central and Eastern Sydney primary health networks, 1 May 2021-30 September 2023. PARTICIPANTS: General practitioners who worked at least two clinical sessions each week, saw patients under 18 years of age, and for whom at least 1 month of referrals data during the control period were available; families of people under 18 years attending these practices. INTERVENTION: Weekly (6 months) then fortnightly (6 months) general practitioner-paediatrician co-consultations; monthly paediatrician-led case discussions; weekday phone and email support by paediatricians. MAIN OUTCOME MEASURES: Proportion of general practitioner visits in which patients were referred to publicly funded hospital outpatient clinics or emergency departments (patient level), overall and by baseline referral rate. SECONDARY OUTCOMES: Referrals after completion of the intervention; general practitioner confidence regarding child health care; low value care for frequent childhood conditions; family preference for general practitioner or paediatrician care. RESULTS: One hundred and thirty participating general practitioners from 22 general practices conducted 50,101 consultations during the control period; 125 general practitioners from 21 general practices received the intervention and undertook 96,804 consultations. Patients were referred to hospitals in 2.3% of control period consultations and 1.9% of intervention period consultations (risk difference, -0.34 [95% confidence interval {CI}, -0.69 to 0.004] percentage points). Among general practitioners with high referral rates at baseline (5% or higher), patients were referred to hospital outpatient or emergency department in 7.3% of control period consultations and in 3.0% of intervention period consultations (risk difference, -4.28 [95% CI, -6.59 to -1.97] percentage points); the referral rate was also lower after the intervention period (sustainability vs. control periods: 2.9% vs. 5.8%; risk difference, -2.92 [95% CI, -5.36 to -0.48] percentage points). The proportions of general practitioners confident about their knowledge and skills regarding child health care were larger during the intervention than the control period. Quality of care and family preference for general practitioner-led care for their children remained high across the study. No adverse events were recorded. CONCLUSION: Strengthening primary care for children reduces the frequency of hospital referrals of children by general practitioners with high referral rates, increases rates of general practitioner confidence about caring for children and maintains family preference for general practitioner-led care. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12620001299998 (prospective).; THE KNOWN: The demand for hospital outpatient and emergency services for children is rising in high income countries. Integrated care models in which paediatricians support care by general practitioners could reduce the number of hospital referrals. THE NEW: An integrated general practitioner–paediatrician model did not reduce hospital referrals overall, but sustainably reduced referrals of children by general practitioners who had previously referred 5% or more of patients under 18 years of age. THE IMPLICATIONS: To relieve pressure on hospitals and improve equitable access to specialist care, this care model could be expanded to include general practices in areas with high numbers of children and general practitioners with high referral rates.; eng PY - 2026 SN - 0025-729X (Print); 0025-729x SP - e70115 ST - Strengthening Care for Children (SC4C), an Integrated Paediatrician-General Practitioner Model for Reducing Hospital Referral Rates: A Stepped-Wedge Cluster Randomised Controlled Trial T1 - Strengthening Care for Children (SC4C), an Integrated Paediatrician-General Practitioner Model for Reducing Hospital Referral Rates: A Stepped-Wedge Cluster Randomised Controlled Trial T2 - Med J Aust TI - Strengthening Care for Children (SC4C), an Integrated Paediatrician-General Practitioner Model for Reducing Hospital Referral Rates: A Stepped-Wedge Cluster Randomised Controlled Trial U1 - Healthcare Disparities U3 - 10.5694/mja2.70115 VL - 224 VO - 0025-729X (Print); 0025-729x Y1 - 2026 ER -