Outcomes associated with antidepressant treatment according to the number of prescriptions and treatment changes: 5-year follow-up of a nation-wide cohort study.

Background: Naturalistic studies regarding clinical outcomes associated with antidepressant treatment duration have yielded conflicting results, possibly because they did not consider the occurrence of treatment changes. This nation-wide population-based study examined the association between the number of filled prescriptions and treatment changes and long-term psychiatric outcomes after antidepressant treatment initiation. Methods: Based on the French national health insurance database, 842,175 adults who initiated an antidepressant treatment in 2011 were included. Cox proportional-hazard multi-adjusted regression models examined the association between the number of filled prescriptions and the occurrence of treatment changes 12 months after initiation and four outcomes during a 5-year follow-up: psychiatric hospitalizations, suicide attempts, sick leaves for a psychiatric diagnosis, new episodes of antidepressant treatment. Results: During a mean follow-up of 4.5 years, the incidence rates of the four above-mentioned outcomes were 13.49, 2.47, 4.57, and 92.76 per 1,000 person-years, respectively. The number of filled prescriptions was associated with each outcome (adjusted HRs [95% CI] for one additional prescription ranging from 1.01 [1.00-1.02] to 1.10 [1.09-1.11]), as was the occurrence of at least one treatment change vs. none (adjusted HRs [95% CI] ranging from 1.18 [1.16-1.21] to 1.57 [1.79-1.65]). Furthermore, the adjusted HRs [95% CI] of the number of filled prescriptions were greater in patients with (vs. without) a treatment change for psychiatric hospitalizations (1.12 [1.11-1.14] vs. 1.09 [1.08-1.10], p for interaction = 0.002) and suicide attempts (1.12 [1.09-1.15] vs. 1.06 [1.04-1.08], p for interaction = 0.006). Limitations: Lack of clinical data about the disorders warranting the prescriptions or their severity. Conclusion: Considering treatment changes is critical when using administrative claims database to examine the long-term psychiatric outcomes of antidepressant treatments in real-life settings.

The Economic Burden of Disease in France From the National Health Insurance Perspective: The Healthcare Expenditures and Conditions Mapping Used to Prepare the French Social Security Funding Act and the Public Health Act.

BACKGROUND: Identifying the most frequently treated and the costliest health conditions is essential for prioritizing actions to improve the resilience of health systems. OBJECTIVES: Healthcare Expenditures and Conditions Mapping describes the annual economic burden of 58 health conditions to prepare the French Social Security Funding Act and the Public Health Act. DESIGN: Annual cross-sectional study (2015-2019) based on the French national health database. SUBJECTS: National health insurance beneficiaries (97% of the French residents). MEASURES: All individual health care expenditures reimbursed by the national health insurance were attributed to 58 health conditions (treated diseases, chronic treatments, and episodes of care) identified by using algorithms based on available medical information (diagnosis coded during hospital stays, long-term diseases, and specific drugs). RESULTS: In 2019, €167.0 billion were reimbursed to 66.3 million people (52% women, median age: 42 y). The most prevalent treated diseases were diabetes (6.0%), chronic respiratory diseases (5.5%), and coronary diseases (3.2%). Coronary diseases accounted for 4.6% of expenditures, neurotic and mood disorders 3.7%, psychotic disorders 2.8%, and breast cancer 2.1%. Between 2015 and 2019, the expenditures increased primarily for diabetes (+€906 million) and neurotic and mood disorders (+€861 million) due to the growing number of patients. "Active lung cancer" (+€797 million) represented the highest relative increase (+54%) due to expenditures for the expensive drugs and medical devices delivered at hospital. CONCLUSIONS: These results have provided policy-makers, evaluators, and public health specialists with key insights into identifying health priorities and a better understanding of trends in health care expenditures in France.

Evolution of health care utilization and expenditure during the year before death in 2015 among people with cancer: French snds-based cohort study.

BACKGROUND: Cancer patients have one of the highest health care expenditures (HCE) at the end of life. However, the growth of HCE at the end of life remains poorly documented in the literature. OBJECTIVE: To describe monthly reimbursed expenditure during the last year of life among cancer patients, by performing detailed analysis according to type of expenditure and the person's age. METHOD: Data were derived from the Système national des données en santé (SNDS) [national health data system], which comprises information on ambulatory and hospital care. Analyses focused on general scheme beneficiaries (77% of the French population) treated for cancer who died in 2015. RESULTS: Average reimbursed expenditure during the last year of life was €34,300 per person in 2015, including €21,100 (62%) for hospital expenditure. "Short-stays hospital" and "rehabilitation units" stays expenditure were €14,700 and €2000, respectively. Monthly expenditure increased regularly towards the end of life, increasing from 12 months before death €2000 to €5200 1 month before death. The highest levels of expenditure did not concern the oldest people, as average reimbursed expenditure was €50,300 for people 18-59 years versus €25,600 for people 80-90 years. Out-of-pocket payments varied only slightly according to age, but increased towards the end of life. CONCLUSION: A marked growth of HCE was observed during the last 4 months of life, mainly driven by hospital expenditure, with a more marked growth for younger people.

Age, Male Gender, and Social Deprivation Are Associated with a Lower Rate of Insulin Pump Therapy Initiation in Adults with Type 1 Diabetes: A Population-Based Study.

Objectives: The objective of this population-based study was to identify factors associated with insulin pump therapy initiation in adults with insulin-requiring diabetes in France in 2015. Method: People with insulin-requiring diabetes and their characteristics were identified from the national health data system. Factors associated with insulin pump therapy initiation were identified by logistic regression analysis. Results: The study focused on 614,913 adults with diabetes treated by multiple daily injections before 2015: 4083 of them initiated insulin pump therapy during the year (71% of them had type 1 diabetes, T1D). Factors associated with insulin pump therapy initiation were the number of consultations with an endocrinologist within the past 2 years (2 vs. 0, odds ratio [OR] = 1.5, P < 0.01), the presence of a chronic cardiovascular or neurovascular disease (OR = 1.6 for T1D, OR = 1.3 for type 2 diabetes [T2D], P < 0.01) and treatment with antidepressants/anxiolytics (OR = 1.2 for T1D, OR = 1.4 for T2D, P < 0.01). The other determinants were female gender (OR = 1.5, P < 0.01) and history of hospitalization for acute metabolic complications (OR = 1.14, P < 0.01) in T1D. Factors associated with less insulin pump therapy initiation were age, duration of diabetes, end-stage renal disease, and social deprivation (OR = 0.662, P < 0.01, T1D only). Conclusion: Predictive factors of insulin pump therapy initiation in people with insulin-requiring diabetes in 2015 in France were globally consistent with clinical practice guidelines. Age, male gender, and social deprivation are still associated with a lower rate of insulin pump therapy initiation in adults with T1D.

Time trends in diabetes medication prescription and factors associated with metformin discontinuation in people with newly diagnosed type 2 diabetes: A national population-based study.

OBJECTIVE: To describe, based on the French National Health Insurance (NHI) data, time trends in diabetes medications after treatment initiation in two consecutive cohorts of people newly treated for type 2 diabetes (T2D) in 2008 (1st cohort) and 2013 (2nd cohort). MATERIALS AND METHODS: People, aged 45 years and older, newly treated for T2D in 2008 and 2013 were identified in the French NHI Data System. Treatment changes were collected for each year of follow-up. Logistic regression was performed to identify factors associated with metformin discontinuation. RESULTS: Respectively, 157 940 and 160 670 beneficiaries (mean age: 63 and 64 years; men proportion: 53 and 52%) of the French NHI general scheme initiated a diabetes treatment in 2008 and 2013. Metformin was the first monotherapy and increased in use: 67% of monotherapies in 2008 versus 77% in 2013. Monotherapy percentage decreased from the second year onwards in both cohorts. A marked increase in metformin-DPP4i combination therapy was observed (14% of dual therapies in 2008 vs. 46% in 2015 in the first cohort), replacing the metformin-sulfonylureas combination as a second-line treatment. Metformin discontinuation was statistically associated with female gender, social deprivation, age and anti-diabetic polypharmacy. Discontinuation of diabetes treatment was observed after 5 years for, respectively, 10% and 13% in the first and second cohorts. CONCLUSION: Descriptive analysis of two consecutive national cohorts showed an evolution in the prescription patterns of anti-diabetic treatments over a short period. With early treatment intensification, increasing rate of metformin monotherapy, and changes in dual-therapy strategy.

Intensity of Care, Expenditure, and Place of Death in French Women in the Year Before Their Death From Breast Cancer: A Population-Based Study.

Health care utilization of women with breast cancer (BC) during the last year of life, together with the causes and place of death and associated expenditure have been poorly described. Women treated for BC (2014-2015) with BC as a cause of death in 2015 and covered by the national health insurance general scheme (77% of the population) were identified in the French health data system (n = 6,696, mean age: 68.7 years, SD ± 15). Almost 70% died in short-stay hospitals (SSH), 4% in hospital-at-home (HaH), 9% in Rehab, 5% in skilled nursing homes (SNH) and 12% at home. One-third presented cardiovascular comorbidity. During the last year, 90% were hospitalized at least once in SSH, 25% in Rehab, 13% in HaH and 71% received hospital palliative care (HPC), but only 5% prior to their end-of-life stay. During the last month, 85% of women were admitted at least once to a SSH, 42% via the emergency department, 10% to an ICU, 24% received inpatient chemotherapy and 18% received outpatient chemotherapy. Among the 83% of women who died in hospital, independent factors for HPC use were cardiovascular comorbidity (adjusted odds ratio, aOR: 0.83; 95%CI: 0.72-0.95) and, in the 30 days before death, at least one SNH stay (aOR: 0.52; 95%CI: 0.36-0.76), ICU stay (aOR: 0.36; 95%CI: 0.30-0.43), inpatient chemotherapy (aOR: 0.55; 95%CI: 0.48-0.63), outpatient chemotherapy (aOR: 0.60; 95%CI: 0.51-0.70), death in Rehab (aOR: 1.4; 95%CI: 1.05-1.86) or HAH (aOR: 4.5; 95%CI: 2.47-8.1) vs SSH. Overall mean expenditure reimbursed per woman was €38,734 and €42,209 for those with PC. Women with inpatient or outpatient chemotherapy during the last month had lower rates of HPC, suggesting declining use of HPC before death. This study also indicates SSH-centered management with increased use of HPC in HaH and Rehab units and decreased access to HPC in SNH.

Less amputations for diabetic foot ulcer from 2008 to 2014, hospital management improved but substantial progress is still possible: A French nationwide study.

OBJECTIVE: To assess the improvement in the management of diabetes and its complications based on the evolution of hospitalisation rates for diabetic foot ulcer (DFU) and lower extremity amputation (LEA) in individuals with diabetes in France. METHODS: Data were provided by the French national health insurance general scheme from 2008 to 2014. Hospitalisations for DFU and LEA were extracted from the SNIIRAM/SNDS French medical and administrative database. RESULTS: In 2014, 22,347 hospitalisations for DFU and 8,342 hospitalisations for LEA in patients with diabetes were recorded. Between 2008 and 2014, the standardised rate of hospitalisation for DFU raised from 508 to 701/100,000 patients with diabetes. In the same period, the standardised rate of LEA decreased from 301 to 262/100,000 patients with diabetes. The level of amputation tended to become more distal. The proportion of men (69% versus 73%) and the frequency of revascularization procedures (39% versus 46%) increased. In 2013, the one-year mortality rate was 23% after hospitalisation for DFU and 26% after hospitalisation for LEA. CONCLUSIONS: For the first time in France, the incidence of a serious complication of diabetes, i.e. amputations, has decreased in relation with a marked improvement in hospital management.

Intensity of care, expenditure, place and cause of death people with lung cancer in the year before their death: A French population based study.

INTRODUCTION: Health care utilization of people with lung cancer (LC) the last year of life, their causes of death and place of death and the associated expenditure have been poorly described together. Then we conducted an observational study. METHODS: People with LC covered by the French health Insurance general scheme (77% of the population) who died in 2015 were identified in the national health data system, together with their health care utilization and, in 95% of cases, their causes of death. RESULTS: A total of 22,899 individuals were included (mean age: 68 years, SD±11.4), 72% of whom died in short-stay hospitals (SSH), 4% in hospital-at-home, 8% in Rehab hospital, 2% in skilled nursing homes and 14% at home. One-half of these people had also a chronic respiratory tract disease and 18% another cancer. Hospital palliative care (HPC) was identified for 65% of people, but for only 9% prior to their end-of-life stay. During the last month of life, 49% of people had two or more SSH stays, 15% were admitted to an intensive care unit, 23% received a chemotherapy session (13% during the last 14 days). The main cause of death was cancer for 92% of individuals (LC for 82%) The mean expenditure during the last year of life was €43,329 per individual. DISCUSSION: This study indicates high rates of intensive care unit admissions and chemotherapy during the last month of life and a SSH hospital-centered management with intensive use of HPC mainly during the end-of-life stay.

Using filled prescription sequences to rank antidepressants according to their acceptability in the general population: The Constances cohort.

Ranking antidepressants according to their acceptability (i.e. a combination of both efficacy and tolerability) in the general population may help choosing the best first-line medication. This study aimed to rank antidepressants according to the proportion of filled prescription sequences consistent with a continuation of the first treatment versus those consistent with a change. A first step was validating this measure as a proxy of acceptability by examining the association of these two kinds of sequences with levels of depressive symptoms. Among 64,467 individuals included in the French population-based Constances cohort, reimbursements of antidepressants from January 2009 to December 2015 were extracted from the French national health insurance system claims database. Depressive symptoms were measured at inclusion with the Center for Epidemiologic Studies-Depression scale (CES-D). Between January 2010 and December 2015, 6675 participants newly initiated an antidepressant (34.5% men, mean (SD) age: 48.3 (12.1) years). Among the subsample of participants included during the six-month period following treatment initiation, individuals with continuation sequences had lower levels of depressive symptoms than those with change sequences (mean (SE) CES-D score: 18.9 (0.8) versus 26.5 (2.1), p < 0.001). According to the continuation/change ratio observed over this six-month period in all participants, escitalopram ranked first, followed by sertraline, venlafaxine, citalopram, fluoxetine and paroxetine. In an independent replication sample representative of the French national population, the same six medications ranked first, with escitalopram remaining in first place. The proportion of filled prescription sequences consistent with a continuation versus a change of the first prescribed treatment may provide a widely available measure of antidepressant acceptability in community practice.

Cancer and end of life: the management provided during the year and the month preceding death in 2015 and causes of death in France.

PURPOSE: The management of cancer patients at the end of life in France and their causes of death are not well known. METHODS: People managed for cancer in 2014-2015, who died in 2015 and who were covered by the national health insurance general scheme (77% of the French population) were selected from the national health data system in order to analyze the health care reimbursed during the year and the month before their death. RESULTS: This study included 125,497 people (mean age 73 years, SD 12.5) managed for cancer: colorectal: 12%, lung: 18%, prostate: 9%, breast: 8% and other: 62%. Almost 67% of people died in short-stay hospitals (SSH), 8% died in rehabilitation units (Rehab), 4% died in hospital at home (HaH), 5% died in skilled nursing homes (SNH) and 15% died at home or another place. The mean annual duration of all types of hospitalization was 70 days (SD 66) and 59% of patients had received hospital palliative care (HPC). During the last month of life, 42% of people had attended an emergency department at least once and people who had received HPC were less often admitted to an intensive care unit (10% versus 23%, 15% overall). During the month before death, 17% of patients had received intravenous chemotherapy (lung 23%, breast 21%) and 9% had received a pharmacy reimbursement for another form of chemotherapy (prostate 24%, breast 19%). The main cause of death was a tumour for 81% of patients: after management of lung cancer in 91% of cases, breast cancer in 81% of cases, colorectal cancer in 76% of cases and prostate cancer in 63% of cases. CONCLUSIONS: Cancer management and death mostly occurred in SSH in France. Cancer patients frequently attend the emergency department and frequently receive chemotherapy during the last month of life. These data continue to contrast with those observed in Scandinavian- and English-speaking countries, in which management of the end of life at home is preferred.

Intensity of care for cancer patients treated mainly at home during the month before their death: An observational study.

BACKGROUND: Little is known regarding healthcare for cancer patients treated mainly at home during the month before they die. The aim of this study was to provide information on how they were treated and what were their causes of death. METHODS: This population-based observational study analysing information obtained from the French national healthcare data system (SNDS) included adult health insurance beneficiaries treated for cancer who died in 2015 after having spent at least 25 of their last 30 days at home. RESULTS: Among the cancer patients who died in 2015, 25,463 (20%) were included [mean age (±SD) 74±13.2 years, men 62%]; 54% of them died at home. They were slightly older (75 vs. 73 years) than those who died in hospital, had less frequently received hospital palliative care during the year preceding their deaths (19% vs. 41%) and had less often used medical transport (41% vs. 73%) to an emergency department (8% vs. 62%), to hospital-based (11% vs. 17%) or community-based (16% vs. 12%) chemotherapy, to a general practitioner (73% vs. 78%) or to a community-based nursing service (63% vs. 73%). However, when they consulted a general practitioner (median 3 visits vs. 2) or a nurse (median 22 nursing procedures vs. 10) during their last month of life, visits were more frequent. The leading cause of death was tumour, which represented 69% of deaths at home vs. 74% of deaths in hospital. CONCLUSIONS: In France, home management during the last month of life is uncommon and even when it is occurs, in one out of two cases patients pass away in a hospital setting. This study is an interrogation on medical choices, given the wish of many of the French to die at home and placing their choices in an international perspective.

Management and intensity of medical end-of-life care in people with colorectal cancer during the year before their death in 2015: A French national observational study.

The care pathway of patients with colorectal cancer (CRC) 1 year prior to death, their causes of death and the healthcare use, and associated expenditure remain poorly described together. People managed for CRC (2014-2015), covered by the national health insurance general scheme and who died in 2015 were selected from the national health data system. A total of 15 361 individuals (mean age: 75 years, SD: 12.5 years) were included, almost 66% of whom died in short-stay hospital (SSH), 9% in hospital at home (HaH), 4% in rehabilitation units (Rehab), 6% in skilled nursing homes (SNH), and 15% at home. At least one other cancer was identified for one-third of these people. Almost one-half of people presented cardiovascular comorbidity, 21% had chronic respiratory disease, and 13% had a neurological or degenerative disease. During the last month of life, 83% were admitted at least once to SSH, 39% had at least one emergency department admission, 17% were admitted to an intensive care unit, 15% received at least one chemotherapy session (<60 years: 27%), and 5% received oral chemotherapy. Eighty-eight percent of the 60% of individuals who received hospital palliative care (HPC) vs 75% of those without HPC were admitted to SSH at least once during the last month. Cancer was the main cause of death for 84% (SSH: 85%, home: 77%) and corresponded to CRC for 64% of them. The mean annual expenditure per person during the last year of life was €43 398 (SSH: €48 804). This study suggests a relatively high level of HPC use during the year before death for people with CRC in France. High rates of emergency department, intensive care, and chemotherapy use were observed during the last month of life. However, management is very largely SSH-based with a small proportion of deaths at home.

Long-term adverse events after sleeve gastrectomy or gastric bypass: a 7-year nationwide, observational, population-based, cohort study.

BACKGROUND: Concerns are rising about the late adverse events following gastric bypass and sleeve gastrectomy. We aimed to assess, over a 7-year period, the late adverse events after gastric bypass and sleeve gastrectomy compared with matched control groups. METHODS: In this nationwide, observational, population-based, cohort study, we used data extracted from the French National Health Insurance (Système National des Données de Santé) database. All patients undergoing gastric bypass or sleeve gastrectomy in France in 2009, except those who had undergone bariatric surgery in the previous 4 years before inclusion, were matched with control patients with obesity in terms of age, sex, BMI category, baseline antidiabetic therapy, and baseline insulin therapy. Exclusion criteria for the control group included cancer, pregnancy, chronic infectious disease, serious acute or chronic disease in 2008-09, or previous (2005-09) or forthcoming (2010-11) bariatric surgery. The incidence rate was calculated for each type of adverse event leading to inpatient hospital admission over a 7-year period; incidence rate ratios (with 95% CIs) were computed to compare the rate of complications among the bariatric surgery and control groups. Risks of complications during follow-up were compared using Cox proportional-hazards regression analyses. Data were analysed according to the intention-to-treat methodology. FINDINGS: From Jan 1, 2009, to Dec 31, 2009, 8966 patients who underwent bariatric surgery (7359 [82%] women; mean age 40·4 years [SD 11·3]) and 8966 matched controls (7359 [82%] women; mean age 40·9 years [11·4]) were included in analyses 4955 (55%) off 8966 patients in the bariatric surgery group had a primary gastric bypass and 4011 (45%) patients had sleeve gastrectomy. With a mean follow-up of 6·8 years (SD 0·2), mortality was lower in the gastric bypass group than in its control group (hazard ratio 0·64 [95% CI 0·52-0·78]; p<0·0001) and in the sleeve gastrectomy group than in its control group (0·38 [0·29-0·50]; p<0·0001). The gastric bypass and sleeve gastrectomy groups had higher risk than did their control groups for invasive gastrointestinal surgery or endoscopy (incidence rate ratio 2·4 [95% CI 2·1-2·7], p<0·0001, for gastric bypass vs control and 1·5 [1·3-1·7], p<0·0001, for sleeve gastrectomy vs control); for gastrointestinal disorders not leading to invasive procedures (1·9 [1·7-2·1]), p<0·0001, for gastric bypass vs control and 1·2 [1·1-1·4], p<0·0001, for sleeve gastrectomy vs control); and for nutritional disorders (4·9 [3·8-6·4], p<0·0001, for gastric bypass vs control and 1·8 [1·3-2·5], p<0·0001, for sleeve gastrectomy vs control). For psychiatric disorders, there was no significant association (1·1 [0·9-1·4], p=0·190, for gastric bypass vs control and 1·1 [0·8-1·3], p=0·645, for sleeve gastrectomy vs control), except for gastric bypass and alcohol dependence (1·8 [1·1-2·8], p=0·0124). INTERPRETATION: Despite lower 7-year mortality, patients undergoing gastric bypass or sleeve gastrectomy had higher risk of hospital admission at least once for late adverse events, except for psychiatric disorders, than did control patients, with a higher risk observed after gastric bypass than with sleeve gastrectomy. FUNDING: None.

Healthcare use by 30,000 patients with irritable bowel syndrome (IBS) in France: a 5-year retrospective and one-year prospective national observational study.

BACKGROUND: Irritable bowel syndrome (IBS) can be responsible for alteration in quality of life and economic burden. The aim of this study was to evaluate healthcare use related to this disorder in France. METHODS: The French health data system was used to select adults covered by the general health scheme (87% of population) through their first IBS hospitalization in 2015. We studied the healthcare refunded during the previous 5 years, 1 year before and after hospitalization. RESULTS: Among 43.7 million adults who used refunded healthcare in 2015, 29,509 patients were identified (0.07, 33% males, 67% females, mean age 52 years, 30% admitted through emergency room). During their hospitalization, 33% had upper endoscopy and 64% colonoscopy. Over the five previous years, 3% had at least one hospitalization with an IBS diagnosis, 58% had abdominal ultrasonography, 27% CT scan, 21% upper endoscopy, 13% colonoscopy and 83% a gastroenterologist visit. The year before, these rates were respectively: 0, 36, 16, 6, 4 and 78%. Some of those rates decreased the year after the hospitalization with respectively: 1, 27, 13, 5, 4 and 19%. The year before, 65% had at least one CRP dosage (13% three or more), 58% a TSH dosage (7%) and 8% a test for coeliac diseases (1%) and the year after: 44% (8%), 43% (5%) and 3% (0.3%). At least one refund of a drug used to treat IBS was found for 85% of patients 5 years before, 65% one year before and 51% one year after. CONCLUSION: This first study using French health data system for healthcare consumption assessment in IBS points out the repetition of outpatient visits, examinations and in particular radiological examinations, without a strong decrease after hospitalization for IBS and gastroenterologist visit.

Patient characteristics and treatments one year after diagnosis of renal cancer in 2015 according to the presence or absence of metastasis and a history of another tumour: A national observational study.

INTRODUCTION: This study describes the characteristics, management and outcome of patients one year after a diagnosis of renal cancer, according to the presence of a history of another tumour and metastases at diagnosis or during the first year. METHODS: Based on information from the national health data system (SNDS), 10,989 general scheme beneficiaries (>15 years) with a first hospital stay in 2015 for renal cancer were divided into groups according to the presence of a history of another tumour or metastases. RESULTS: In this cohort of 10,989 people (75 years and older: 30%, men: 65%), 12% had a history of another tumour diagnosed during the two years before and 22% presented one or more metastases at the time of the index hospitalisation or during the following year. Overall, nephrectomy was performed in 56% of cases (partial nephrectomy in 29% of cases), in 63% and 36% of cases without metastases and in 68% and 40% of cases without metastases and with no history of another tumour. Overall, 2% of patients received at least one monoclonal antibody and 15% received a protein kinase inhibitor. These drugs were used in 6% and 53% of cases, respectively, in the presence of metastases and in 7% and 31% of cases, respectively, in the presence of metastases and a history of another tumour. CONCLUSION: This study highlights the high rate of a history of another tumour and adaptation of treatment according to a history of cancer and the presence of metastases.

Impact of selective reporting of antibiotic susceptibility test results in urinary tract infections in the outpatient setting: a protocol for a pragmatic, prospective quasi-experimental trial.

INTRODUCTION: Antibiotic resistance is a serious and increasing worldwide threat to global public health. One of antibiotic stewardship programmes' objectives are to reduce inappropriate broad-spectrum antibiotics' prescription. Selective reporting of antibiotic susceptibility test (AST) results, which consists of reporting to prescribers only few (n=5-6) antibiotics, preferring first-line and narrow-spectrum agents, is one possible strategy advised in recommendations. However, selective reporting of AST has never been evaluated using an experimental design. METHODS AND ANALYSIS: This study is a pragmatic, prospective, multicentre, controlled (selective reporting vs usual complete reporting of AST), before-after (year 2019 vs 2017) study. Selective reporting of AST is scheduled to be implemented from September 2018 in the ATOUTBIO group of 21 laboratories for all Escherichia coli identified in urine cultures in adult outpatients, and to be compared with the usual complete AST performed in the EVOLAB group of 20 laboratories. The main objective is to assess the impact of selective reporting of AST for E. coli-positive urine cultures in the outpatient setting on the prescription of broad-spectrum antibiotics frequently used for urinary tract infections (amoxicillin-clavulanate, third-generation cephalosporins and fluoroquinolones). The primary end point is the after (2019)-before (2017) difference in prescription rates for the previously mentioned antibiotics/classes that will be compared between the two laboratory groups, using linear regression models. Secondary objectives are to evaluate the feasibility of selective reporting of AST implementation by French laboratories and their acceptability by organising focus groups and individual semi-structured interviews with general practitioners and laboratory professionals. ETHICS AND DISSEMINATION: This protocol was approved by French national ethics committees (Comité d'expertise pour les recherches, les études et les évaluations dans le domaine de la santé (TPS 29064) and Commission Nationale de l'Informatique et des Libertés (Décision DR-2018-141)). Findings of this study will be widely disseminated through conference presentations, reports, factsheets and academic publications and generalisation will be further discussed. TRIAL REGISTRATION NUMBER: NTC03612297.

Impact of type 2 diabetes on health expenditure: estimation based on individual administrative data.

Only limited data are available in France on the incidence and health expenditure of type 2 diabetes. The objective of this study, based on national health insurance administrative database, is to describe the expenditure reimbursed to patients newly treated for type 2 diabetes and the proportion of expenditure attributable to diabetes. The study is conducted over a 6-year period from 2008, the year of incidence of treated diabetes, to 2014. Type 2 diabetic patients aged 45 years and older are identified on the basis of their drug consumption. To estimate expenditure attributable to diabetes, a matched control group is selected among more than 13 million beneficiaries over 44 years old not taking antidiabetic treatment. The expenditure attributable to diabetes is estimated by two methods: simple comparison of reimbursed health expenditure between both groups, and a difference-in-differences method including control variables. The cohort of incident type 2 diabetic patients comprises 170,013 patients in 2008. Mean global reimbursed expenditure is €4700 per patient in 2008 and €5500 in 2015. Expenditure attributable to diabetes, estimated by direct comparison with controls, is €1500 in the first year. We, thus, observe a decrease in the following year due to decreased hospitalisations, and then expenditure increase by an average of 7% per year to reach €1900 in the eighth year after the initiation of treatment.

Identifying diabetes cases in health administrative databases: a validation study based on a large French cohort.

OBJECTIVES: In the French national health insurance information system (SNDS) three diabetes case definition algorithms are applied to identify diabetic patients. The objective of this study was to validate those using data from a large cohort. METHODS: The CONSTANCES cohort (Cohorte des consultants des Centres d'examens de santé) comprises a randomly selected sample of adults living in France. Between 2012 and 2014, data from 45,739 participants recorded in a self-administrated questionnaire and in a medical examination were linked to the SNDS. Two gold standards were defined: known diabetes and pharmacologically treated diabetes. Sensitivity, specificity, positive and negative predictive values (PPV, NPV) and kappa coefficients (k) were estimated. RESULTS: All three algorithms had specificities and NPV over 99%. Their sensitivities ranged from 73 to 77% in algorithm A, to 86 and 97% in algorithm B and to 93 and 99% in algorithm C, when identifying known and pharmacologically treated diabetes, respectively. Algorithm C had the highest k when using known diabetes as the gold standard (0.95). Algorithm B had the highest k (0.98) when testing for pharmacologically treated diabetes. CONCLUSIONS: The SNDS is an excellent source for diabetes surveillance and studies on diabetes since the case definition algorithms applied have very good test performances.

Two morbidity indices developed in a nationwide population permitted performant outcome-specific severity adjustment.

OBJECTIVE: The objective of the study was to develop and validate two outcome-specific morbidity indices in a population-based setting: the Mortality-Related Morbidity Index (MRMI) predictive of all-cause mortality and the Expenditure-Related Morbidity Index (ERMI) predictive of health care expenditure. STUDY DESIGN AND SETTING: A cohort including all beneficiaries of the main French health insurance scheme aged 65 years or older on December 31, 2013 (N = 7,672,111), was randomly split into a development population for index elaboration and a validation population for predictive performance assessment. Age, gender, and selected lists of conditions identified through standard algorithms available in the French health insurance database (SNDS) were used as predictors for 2-year mortality and 2-year health care expenditure in separate models. Overall performance and calibration of the MRMI and ERMI were measured and compared to various versions of the Charlson Comorbidity Index (CCI). RESULTS: The MRMI included 16 conditions, was more discriminant than the age-adjusted CCI (c-statistic: 0.825 [95% confidence interval: 0.824-0.826] vs. 0.800 [0.799-0.801]), and better calibrated. The ERMI included 19 conditions, explained more variance than the cost-adapted CCI (21.8% vs. 13.0%), and was better calibrated. CONCLUSION: The proposed MRMI and ERMI indices are performant tools to account for health-state severity according to outcomes of interest.

Management of pregnancy based on healthcare consumption of women who delivered in France in 2015: Contribution of the national health data system (SNDS).

OBJECTIVE: This study was designed to further our knowledge of the management of pregnant women based on the national health data system (SNDS). MATERIAL AND METHODS: Women covered by the national health insurance general scheme or a local mutualist section, who delivered in 2015. RESULTS: Among the 672,182 women included (mean age: 31 years, SD 5.3), 0.3% were under the age of 18 years, 4% lived in a French overseas department (<18 years: 21%), 17% had complementary universal health insurance coverage (<18 years: 75%), 1.2% presented a mental illness, 0.6% had a cancer, and 0.4% had cardiovascular disease. At least one outpatient visit with a gynaecologist or midwife was detected for 93% of women (first trimester (T1): 75%), specific or nonspecific pelvic ultrasound was performed in 98% (T1: 92%), blood glucose assay was performed in 78% (T1: 61%), and an oral glucose tolerance test was performed in 58%. Before delivery, 0.2% of women had at least one admission to the intensive care unit and 22% had at least one hospital stay (<18 years: 38%), for which the principal diagnoses were: false labour (4.5%), threatened preterm labour (2.5%), surveillance of high-risk pregnancy (2.6%), diabetes (2.6%), and hypertension (0.7%). The preterm delivery rate was 6.7% (<18 years: 14%, ≥40 years: 9%). Although 20% of deliveries were performed by caesarean section, 16% of vaginal deliveries required instrumental extraction. DISCUSSION: SNDS data enrich the data derived from periodic national perinatal surveys, such as the poor follow-up of adolescent girls. These data can promote the elaboration and monitoring of annual indicators.