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Background Continuity of care could reduce health care consumption by patients and reduce the number of referrals to specialist care, but it is unknown if there is a difference in referral rates to specific medical specialties. Aim We aimed to determine the relationship between continuity of care and both the referral rate (referrals per patient per year) and the medical specialties for which this relationship was strongest. Design and setting A retrospective cohort study of 19333 patients in primary care in the north of the Netherlands. Method Patients with at least two contacts with a general practitioner (GP) over a 2-year period (2013-2014) were included. The number of contacts with their own or other GPs were calculated, and referral rates were determined. Continuity of care was included as a dichotomous variable (absent or present). Results The odds of being referred were higher for older patients, females and patients with more practitioner contacts. However, the presence of continuity of care was associated with the highest odds of referral. The referral rate was significantly highest for patients with continuity of care when referred to paediatrics, as well as for patients without continuity of care who were referred to gastroenterology, ophthalmology and psychiatry. Conclusion Increased continuity of care decreases referral to specialist care, most notably for referrals to paediatrics. Despite continued pressures on continuity of care, policy makers should invest in this cornerstone of primary care to temper health care expenditures.

Background and objective. A new payment system could curb primary health care costs. A differentiated capitation system based on patient characteristics could be the best mix for payment. To test the feasibility of such a system, we examined the number of contacts between patients and general practitioners (GPs), the related costs and the relationship with age, sex and comorbidity.Methods. A retrospective observational study included 29 304 primary care patients in the Netherlands. Age, sex and comorbidity were related to number of contacts per patients per year and costs using a negative binomial regression analysis.Results. Males, younger patients and patients with no comorbidities visit their GP least often. Medically unexplained physical symptoms, diabetes and severe back complaints generate the most contacts; diabetes is specifically related to higher costs.Conclusion. Several patient characteristics are related to the number of contacts patients have with their GP and the consecutive remuneration. This study can be used as an input to create a differentiated capitation system.

Anaplastic thyroid carcinoma is a rare and highly malignant disease. Usually, this type of tumor is irresectable, and almost all patients die within 1 year after diagnosis. We present a case of anaplastic thyroid carcinoma with rhabdomyoblastic differentiation and good therapeutic outcome. A 76-year-old female was referred to our hospital with a growing, painless neck mass which existed for 3 months. Biopsy of the mass showed microscopically and immunohistochemically a follicular (Hurthle cell) carcinoma of the thyroid, dedifferentiated to an anaplastic carcinoma with divergent differentiation along rhabdomyoblastic cell lines. The patient underwent a total thyroidectomy with additional lymph node dissection, followed by two episodes of 150 mC I-131 therapy and external radiotherapy. After a follow-up of 3 years, the patient still remains in a good condition without any signs of recurrent disease. Other cases of rhabdomyoblastic and rhabdoid anaplastic thyroid carcinomas have been described. Both types of carcinoma are associated with an aggressive clinical course. In our case, the patient is still alive without evidence of disease 3 years after primary therapy. The good clinical outcome of our patient suggests that surgical resection, radiotherapy, and I-131 ablation therapy with curative intent seems to be an adequate treatment option in patients with anaplastic thyroid carcinoma with rhabdoid and rhabdomyoblastic differentiation.