Respiratory syncytial virus-related hospital stays in adults in France from 2012 to 2021: A national hospital database study.

BACKGROUND: Respiratory syncytial virus (RSV) causes lower respiratory tract infections (LRTI) that may lead to hospitalization or death. The present study aimed to assess the burden of RSV infections in hospitalized adults. METHODS: RSV-related hospitalizations were identified from the nationwide hospital claims database in France (PMSI) from 2012 to 2021 using ICD-10 codes J12.1, J20.5, J21.0 or B97.4, and outcomes assessment focused on 2016-2020. In-hospital outcomes included length of stay, need for intensive care (ICU) and in-hospital all-cause mortality. Post-discharge outcomes included 30-day readmission for decompensation, 90-day RSV-related readmission, and 30 and 60-day in-hospital mortality. RESULTS: A cumulated number of 17 483 RSV-related stays were identified representing a rate of 72.0 cases per million stays. The outcomes assessment included 12,987 patients: 55.8 % were females and the mean age was 74.1 ± 16.4 years, with 57 % ≥ 75 years. Most of patients (78.6 %) had at least one comorbidity, mainly chronic respiratory (56.3 %) and cardiovascular diseases (41.3 %), or diabetes (23.5 %). A co-infection was found in 22.4 %, primarily bacterial (12 %). The mean length of stay was 12.3 ± 13.1 days. Overall, 10.9 % were admitted to an ICU and in-hospital mortality was 7.3 %. In-hospital outcomes were higher in cases of co-infection. Among 12 033 patients alive at discharge from the index stay, 6.5 % were readmitted with RSV within 90 days, 8.1 % for decompensation within 30 days, and 5.6 % died within 60-day. CONCLUSION: This study demonstrated the high burden of RSV infections in older adults and those with chronic conditions, and the need for preventive strategies.

Epidemiology and disease burden of tuberous sclerosis complex in France: A population-based study based on national health insurance data.

OBJECTIVE: Tuberous sclerosis complex (TSC) is a rare multisystem disorder, often associated with epilepsy. This retrospective study aimed to identify patients with TSC, including those with epilepsy, from a French healthcare claims database, and to report incidence, prevalence, and healthcare costs and resource utilization. METHODS: The anonymized French health insurance database (SNDS) covers almost the entire French population. Patients with TSC were identified as having ≥1 International Classification of Diseases, Tenth Revision (ICD-10) diagnosis code Q85.1 or a long-term disease (LTD) registration over the inclusion period (2006-2017). Patients with an ICD-10 epilepsy code or who were dispensed ≥1 antiseizure medication (ASM) in the same year or after their TSC diagnosis were identified as having TSC with epilepsy. Newly diagnosed patients over the inclusion period constituted the incident cohort. Healthcare costs (patients with recorded costs only), healthcare resource use, and ASM dispensation are reported for patients with 2018 data. RESULTS: In 2018, 3139 prevalent patients with TSC were identified (crude prevalence, 4.69 per 100 000); the incident cohort comprised 2988 patients (crude incidence, 0.44 per 100 000). Among patients with TSC, 67% (2101/3139) had epilepsy (mean [standard deviation, SD] age: 28.8 [18.8] years; male: 48%). Among patients with epilepsy, total mean (SD) annual healthcare costs were €11 413 (27 620) per capita (outpatient, 63%; inpatient, 37%), 46% were hospitalized during 2018 (mean [SD]: 1.8 [10.9] acute care visits per patient), and 65% visited a hospital specialist. Among patients with epilepsy, medication (mean [SD]: €4518 [12 102] per capita) was the greatest contributor (63%) to outpatient costs, and in 2018, 74% were dispensed ≥1 different ASM and 9% were dispensed ≥4 ASMs. SIGNIFICANCE: TSC with epilepsy was associated with substantial healthcare costs and resource utilization, particularly outpatient and medication costs. Many patients with TSC with epilepsy were prescribed multiple ASMs, suggesting refractory epilepsy.

Patterns of Use and Clinical Outcomes with Long-Acting Somatostatin Analogues for Neuroendocrine Tumors: A Nationwide French Retrospective Cohort Study in the Real-Life Setting.

INTRODUCTION: Long-acting somatostatin analogues such as lanreotide autogel (LAN) and octreotide long-acting release (OCT) are recommended as first-line treatment for patients with neuroendocrine tumors (NETs). However, only few real-world studies have compared the two medications. This retrospective, observational cohort study used a French claims database to compare patterns of use with LAN vs. OCT in patients with NETs. METHODS: Data on LAN and OCT patterns of use were obtained retrospectively from the National System of Health Data (SNDS), a national French claims database. Patients 18 years of age or older who initiated treatment for NETs between 2009 and 2016, and who received at least six subsequent dispensings of first-line LAN or OCT during the first year of treatment, were included. A subgroup analysis was performed on patients with gastroenteropancreatic (GEP)-NETs. RESULTS: Patients receiving LAN (n = 2327) vs. OCT (n = 2090) had greater median treatment duration (31.8 months vs. 22.1 months, respectively; p < 0.0001; log-rank test) and were less likely to discontinue treatment; adjusted hazard ratio (HR) 0.74 (95% confidence interval [CI] 0.69-0.80). In year 1, a significantly lower percentage of patients receiving LAN vs. OCT switched treatments (10.4% vs. 22.2%, respectively; p < 0.0001), received an average monthly dose per trimester above recommended dose (3.0% vs. 7.3%, respectively; p < 0.0001), and used rescue medication (3.1% vs. 10.0%, respectively; p < 0.0001). Dispensing of pancreatic enzymes was significantly higher in patients receiving LAN than OCT (16.4% vs. 13.9%, respectively). In the subgroup of patients with GEP-NETs, those receiving LAN (n = 1478) vs. OCT (n = 1278) had greater treatment duration and less treatment discontinuation, switching, dosage above the recommended dose, and rescue medication use, but no significant difference in dispensing of pancreatic enzymes or time to second-line treatment. CONCLUSION: These real-world data suggest potential clinical and economic advantages of LAN over OCT in the management of patients with NETs in the French population.

Trends in postmenopausal osteoporosis treatment in France during the period 2007-2016: A nationwide claims database analysis.

PURPOSE: To describe the trends in the pharmacological management of postmenopausal osteoporosis in France during the period 2007-2016. METHOD: This cross-sectional, yearly repeated study of patients in France used the nationwide claims database 'Échantillon Généraliste de Bénéficiaires' (EGB), covering a 1 in 97 representative sample of approximately 600,000 individuals insured by the main French public insurance scheme. For women aged 50-89 years, prescriptions for all anti-osteoporosis medications (AOMs) marketed in France during the study period (bisphosphonates alone or used in combination with calcium, selective estrogen receptor modulators, strontium ranelate, teriparatide or denosumab) were identified in each calendar year. Initiation of any AOM in a calendar year was defined by the absence of a prescription for any AOM within the 2 previous calendar years. Incidence was calculated for all AOM prescriptions and initial prescriptions for AOM. RESULTS: Marked changes were observed in the rates of women receiving any AOM, with a slight increase from 2007 to 2009 (from 10.22 to 10.42 per 100 patient-years [PY]), then a plateau in 2009-2010, followed by a rapid and more than twofold decrease until 2016 (from 10.39 to 5.02 per 100 PY). The decrease in the overall rate of women initiating an AOM showed a rapid halving from 2007 to 2012 (from 2.56 to 1.15 per 100 PY), followed by a plateau in the range of 0.90-1.0 per 100 PY during the period 2013-2016. In contrast, the use of calcium/vitamin D has been rapidly increasing as the only prevention and exclusive intervention for postmenopausal osteoporosis, from 10.6% of women in 2007 to 47.7% in 2016. The profile of patients initiating AOM changed substantially over the 10-year period. Despite a stable mean age of approximately 69 years, an increasing proportion of women with severe chronic comorbidities (from 34.9% to 43.3%), history of fractures (from 7.8% to 13.3%) or high-dose steroid use (from 2.9% to 8.4%) was observed. The decline of AOM initiation was associated with a marked reduction of prescriptions during the study period: by 64.2% for primary care physicians; by 36.7% for specialty doctors; and by 18.4% for rheumatologists. CONCLUSION: These findings suggest a general trend toward an AOM uptake that is increasingly limited to a fraction of patients who are at high risk of fractures. In the context of an aging population and declining prescription rates for AOM, these data highlight an increasing treatment gap among women in France with osteoporosis, which is similar to that seen in other European countries and in the USA.

Three-year clinical outcomes in patients with rheumatoid arthritis treated with certolizumab pegol: results from the observational ECLAIR study.

OBJECTIVES: To describe the long-term effectiveness and safety of certolizumab pegol in patients with moderate-to-severe rheumatoid arthritis (RA) in a real-world setting in France. METHODS: ECLAIR was a 3-year longitudinal, prospective, observational, multicentre study. The primary objective was to describe the EULAR response after 1 year of certolizumab pegol treatment. Other endpoints included DAS28, clinical disease activity index, health assessment questionnaire disability index, fatigue assessment scale, patient's assessment of arthritis pain, patient and physician global assessments of disease activity, patient quality of life, and long-term safety. RESULTS: A total of 792 patients were enrolled, of whom 776 comprised the safety set, and 733 the full analysis set. In the full analysis set, 559, 469 and 430 patients had a 12-, 24- and 36-month visit, respectively. This included 378, 296 and 246 patients still receiving certolizumab pegol at these visits. The percentage of EULAR responders was 75.3% (305/405 patients with an available EULAR response) at 12, 76.5% (261/341) at 24, and 79.6% (226/284) at 36 months. Among those still receiving certolizumab pegol, the percentage of EULAR responders was 81.7% (237/290) at 12, 81.1% (185/228) at 24, and 87.3% (158/181) at 36 months. Sustained improvements were observed in other effectiveness outcomes. Overall, 45.1% (350/776) of patients experienced 776 adverse drug reactions. No new safety signals were identified. CONCLUSIONS: This is the first prospective, observational study of an anti-TNF treatment in France. The results confirm the effectiveness and safety profile of certolizumab pegol treatment in patients with RA in a real-world setting.

Economic burden of coronary artery disease or peripheral artery disease in patients at high risk of ischemic events in the French setting: a claims database analysis.

Aims: Estimate the direct costs of high-risk patients presenting with coronary artery disease (CAD) or peripheral artery disease (PAD) in France.Materials and methods: This retrospective cohort study used a representative claims database, the "Echantillon Généraliste de Bénéficiaires" (EGB), to identify patients presenting with CAD or PAD between 2011 and 2016. Among those, patients meeting the COMPASS trial selection criteria were selected, as well as controls matched on age and sex. Direct costs (Euros 2016) were estimated in a societal perspective by comparing case and controls.Results: The adult population presenting with CAD or PAD in the EGB in 2016 was estimated at 29,888 individuals, representing a crude prevalence rate of 5.44%. After using the documented selection criteria of the COMPASS study, this population (COMPASS-like) was estimated at 17,369 individuals (58.1% of the CAD and/or PAD total population). Among them, a proportion of 11.5% presented with CAD + PAD. Compared with the original COMPASS population, patients were older (76.5 vs 68.2 years) and with a lower male predominance (60.0% vs 78.2% males). Compared with controls, the COMPASS-like population was characterized by a higher annual mortality (5.9% vs 3.5%) and the presence of more comorbidities on top of CAD and/or PAD. The annual per capita extra direct cost of the COMPASS-like population was estimated at €4,284, with a main contribution from inpatient care (58.9%). This extra cost was higher in the PAD ± CAD sub-group (€5,552) and the CAD + PAD sub-group (€8,067).Limitations: The EGB had limitations about several clinical features defining high-risk patients that may lead to bias in our estimates.Conclusions: Due to the high prevalence of CAD and/or PAD and the associated high unit costs, this population generates a significant economic burden, which is higher among patients with PAD and in those presenting simultaneously with both conditions.

Early non-response to certolizumab pegol in rheumatoid arthritis predicts failure to achieve low disease activity at 1 year: data from a prospective observational study.

OBJECTIVE: To evaluate the performance of clinical criteria for predicting late treatment failure in patients with early non-response to certolizumab pegol (CZP). METHODS: A protocol-specified analysis of interim data from ECLAIR, a 3-year longitudinal, prospective, observational, multicentre study of patients with active rheumatoid arthritis (RA) initiating CZP treatment in France, was conducted. Clinical measures assessed were Clinical Disease Activity Index (CDAI), Disease Activity Score-28 with erythrocyte sedimentation rate (DAS28(ESR)) and Health Assessment Questionnaire Disability Index (HAQ-DI). Early non-response was measured at 3 months (M3) and failure to achieve low disease activity (LDA) at 12 months (M12). RESULTS: 574/792 enrolled patients were treated at M3. The numbers available for predictability analyses were 532 (CDAI), 434 (DAS28(ESR)) and 496 (HAQ-DI). Of the three indices evaluated, the highest predictor of non-response value was observed for the CDAI (88.8% (95% CI 81.0 to 94.1)), indicating that up to 88% of patients identified as non-responders at M3 failed to achieve LDA at M12, regardless of baseline disease severity or treatment history. The specificity for this measure was also very high (96.0%), indicating that less than 5% of patients who achieved CDAI response at M12 had not responded at M3. Similar predictability was observed for DAS28(ESR), but only in patients with high disease activity at baseline and/or those previously treated by a biological disease-modifying antirheumatic drug. CONCLUSION: CDAI non-response at M3 is a predictor of failure to achieve the therapeutic target of LDA at M12 in patients with RA initiating treatment with CZP.

Profile of Women Initiated on Denosumab and Pattern of Use in a Restricted Postmenopausal Osteoporosis Indication: A French Database Analysis Over the Period 2013-2014.

INTRODUCTION: French authorities have approved the reimbursement of denosumab as a second-line therapy after bisphosphonates (BPs) in women presenting with postmenopausal osteoporosis (PMO) at high risk of fracture. By using a nationally representative claims database, we analyzed the pattern of denosumab use. The objectives of this study were to describe the profile of women initiated with denosumab over the 14-month period after launch and to check as far back as possible for the appropriateness of its use regarding the restrictions brought by French health authorities. METHODS: A retrospective study using a national representative claims database, i.e., the "Echantillon Généraliste des Bénéficiaires" (EGB), was performed. The population was composed of women aged ≥ 40 years old who had an initiation of a PMO treatment in 2013 or 2014. The denosumab women's profiles were compared with those of women that started any other PMO treatment (except denosumab) over the same period. RESULTS: In 2013 and 2014, we identified 256 women who initiated denosumab. Denosumab was primarily prescribed by specialists (75%) compared with the other PMO treatments (37.6%). Patients on denosumab were significantly older, 73.2 versus 69.1 years old, and they more frequently had a history of fractures (20.7% versus 17.4%, NS) and chronic uptake of high-dose steroids (25% versus 22.8%, NS). Of the women initiated with denosumab, 93.8% had undergone a previous PMO treatment (during the 2005-2014 period). In 92.9% of cases, it was a BP alone or in association. CONCLUSION: This study suggests satisfactory compliance of prescribers concerning the restriction of the reimbursed indication of denosumab in second line after bisphosphonates with 6.2% possible inappropriate prescriptions. FUNDING: Amgen.

Migraine burden and costs in France: a nationwide claims database analysis of triptan users.

Objectives: To estimate the burden of migraine in the population of French patients identified as specific migraine acute treatment users compared to a control group. Methods: A cross-sectional retrospective analysis was performed on the Echantillon Généraliste des Bénéficiaires claims database, a 1/97 random sample of the French public insurance database. A representative sample of all adults with at least one delivery of triptans, ergot derivatives or acetylsalicylic acid/metoclopramide (all drugs with a specific label in migraine acute treatment - SMAT) in 2014 was selected with a control group matched on age, gender and geographic region. Among triptan users, a sub-group of over-users was defined according to their level of triptan uptake expressed in defined daily doses (DDD - a standard daily dose of treatment of acute migraine) per month over 3 months and more, was also compared with controls. The cost analysis was performed in a societal perspective for direct costs. Sick leave indirect costs were estimated using the human capital approach. Results: In total 8639 SMAT users (mean age: 44.6 years; 78.7% women) were selected representing a crude prevalence rate of 1.7%. The annual per capita total healthcare expenditures were higher by €280 in this group compared to controls (€2463 vs. €2183). Triptans contributed 47.8% to this extra cost. They used significantly (p < .0001) more frequently than controls antidepressants (20.8% vs. 11.0%), anxiolytics (29.4% vs. 18.8%) and analgesics (53.8% vs. 35.8%). The per capita annual productivity loss associated with sick leave was higher by €295 (€1712 vs. €1417). Among triptan users, there were 2.9% over-users. This last group was characterized by substantially higher per capita annual extra direct (+ €1805) and indirect costs (productivity loss +€706) compared to controls. Conclusions: Due to its high prevalence, migraine costs generate a significant societal burden. The group of over-users concentrates high per capita direct and indirect costs.

Quality of life and utility decrement associated with Clostridium difficile infection in a French hospital setting.

BACKGROUND: Clostridium difficile infection (CDI) is associated with a substantial Quality of life impact on patients that has not been so far measured with a generic validated instrument. METHODS: A prospective study was performed in 7 French acute-care settings in patients presenting with a bacteriologically-confirmed CDI. The EQ-5D-3 L was filled in by patients at 7 ± 2 days after CDI diagnosis to describe their state of health at that date as well as their state of health immediately before the CDI episode (baseline). Individual utility decrement was obtained by subtracting the corresponding utilities. The Quality Adjusted Life Year (QALY) loss was calculated by multiplying the days spent from baseline to the date of the interview, by the decrement of utility. A multivariate analysis of variance of the utility decrement according to CDI and patients characteristics was performed. RESULTS: Eighty patients were enrolled (mean age: 69.4 years, 55% females). The utility scores dropped from a mean 0.542 (SD: 0.391) at baseline to 0.050 (SD: 0.404) during the CDI episode with a mean adjusted utility decrement of 0.492 (SD: 0.398) point. This decrement increased significantly with CDI severity (Zar score ≥ 3) (p = 0.001), in patients with a positive baseline utility (p = 0.032), in women as compared to men (p = 0.041) and in patients aged more than 65 years (p = 0.041). No association with the Charlson index was found. The associated QALY loss not integrating the excess mortality was 0.028 (SD: 0.053). CONCLUSIONS: The impact on quality of life of CDI episodes is major and translates in a substantial QALY loss despite their short duration.

Burden of severe spondyloarthritis in France: A nationwide assessment of prevalence, associated comorbidities and cost.

OBJECTIVES: To estimate the number of patients with severe spondyloarthritis (SpA) in France, describe their comorbidities and document and value their healthcare resource consumption. METHODS: Data were retrieved from an insurance claims database covering a 1/97 random sample of the French population. All patients benefiting from full insurance coverage ("ALD") for severe SpA in 2012 (including cases with structural damage and/or frequent flares) were identified, together with a control group frequency-matched by age and gender. Severe comorbidities were documented through ALD categories. Healthcare resource consumption was documented and valued from the payer's perspective. Rates of comorbidities and costs were compared in SpA patients versus controls using non-parametric testing. RESULTS: Overall, 827 patients with ALD status for severe SpA were identified (control group: n=2.481), corresponding to a prevalence rate of 0.18% [0.17-0.19] for SpA with ALD in the general population. Severe comorbidities more frequent in patients with SpA than in controls included inflammatory bowel disorders (odds ratio: 15.0 [6.2-36.2]), hypertension (2.5 [1.6-3.9]), atrial fibrillation (4.3 [1.9-9.6]) and major depressive disorder (2.1 [1.3-3.6]). Mean per capita annual direct healthcare expenditure was 3.6 [3.2-4.1]-fold higher in SpA patients (€6,122 [€5,838-€6,406]) than in controls (€1,682 [€1,566-€1,798]). Extrapolating to all patients in France, total healthcare cost attributable to severe SpA patients was €391 [€355-€426] million, with medication accounting for 53.8% of this cost. CONCLUSIONS: The burden of severe SpA in France is substantial, due to the high prevalence, high direct costs and associated comorbidities.

Modeling of the clinical and economic impact of a risk-sharing agreement supporting a treat-to-target strategy in the management of patients with rheumatoid arthritis in France.

OBJECTIVES: To evaluate the cost-effectiveness of a Treat-to-Target strategy with certolizumab pegol in patients with rheumatoid arthritis in the context of a pay-for-performance agreement in which medication costs are refunded in case of discontinuation during the first 3 months of treatment. METHODS: The Treat-to-Target strategy consisted of a systematic switch to second-line tumor necrosis factor (TNF)α inhibitor in case of an unmet ACR50 response at 3 months compared to current routine clinical practice. A reference cohort treated first-line with certolizumab pegol according to current practice without systematic switching was considered as the comparator. A decision-tree model was constructed to estimate clinical outcome (health assessment questionnaire-disability index or HAQ-DI score), time spent in ACR50 response (ACR 50), and direct costs of treatment over a 2-year period. HAQ scores were derived from American College of Rheumatology 50 (ACR50) responses. All TNFα inhibitors were assumed to have equivalent efficacy and tolerability. Costs were estimated at 2013 French retail prices (date of the pay-for-performance agreement). RESULTS: The mean duration of an ACR50 response was 1.23 years in the Treat-to-Target strategy certolizumab pegol cohort vs 0.98 years in the reference cohort, resulting in a mean gain in HAQ at 24 months of 0.117. The Treat-to-Target strategy with a mix of TNFα inhibitors as second-line therapy was more expensive than the reference strategy in absolute terms, but this difference was entirely offset by the pay-for-performance agreement. The Treat-to-Target strategy was, thus, cost-neutral over a 2-year period after the payback of CZP cost for patients not achieving the target at 3 months. CONCLUSIONS: In the context of a pay-for-performance agreement, the management of patients with rheumatoid arthritis using a Treat-to-Target strategy with certolizumab pegol in first line is dominant compared to standard use of this drug in the French setting in 2013.

Healthcare service utilisation costs attributable to rheumatoid arthritis in France: Analysis of a representative national claims database.

OBJECTIVE: To estimate healthcare service utilisation costs of patients with rheumatoid arthritis in France and to estimate the fraction of these costs attributable to RA. METHOD: The "Échantillon généraliste des bénéficiaires" (EGB) is a 1/97 random sample of the main national claims database covering the French population. A cohort of patients with rheumatoid arthritis was constituted of all adults benefiting from full coverage for rheumatoid arthritis (ICD-10 M05-06) on 1st january 2009. A control group matched for age and gender was identified. Health expenditures were assessed from the payer's perspective for the year 2010. RESULTS: The annual per capita reimbursed total health expenditure was €6,404 in 2010, an amount around two times higher than in the control group €3,095 (P<0.0001). The main contributors to this extra cost were outpatient care (+€2,407; 72.7%), including medication (+€1,686; 50.0%), and inpatient care (+€903; 27.3%). Patients treated by biological agents generated an age-adjusted per capita annual expenditure about three times higher than untreated patients (€15,757 versus €4,640). CONCLUSION: Only half of medical expenditure by patients with rheumatoid arthritis is attributable to their disease and use of biological agents has become a major driver of cost.

Impact of rheumatoid arthritis on career progression, productivity, and employability: The PRET Study.

OBJECTIVES: To evaluate the impact of rheumatoid arthritis (RA) on career, productivity, and employability. METHODS: A retrospective cross-sectional survey was conducted in 2012-2013 in France among patients with RA who were younger than 60 years of age and employed or unemployed. Patients were either recruited during a rheumatologist visit or among members of a nationwide patient-support organization (ANDAR). They completed a questionnaire on the functional impact of RA evaluated by the Health Assessment Questionnaire (HAQ) and on the impact of their disease on work ability. RESULTS: Of 488 surveyed patients, 364 (74.6%) were actively employed, 31 (6.4%) were job seekers, and 93 (19.1%) had left the workforce. In the employed group, mean age was 48.9 years; 82.1% of patients were women; mean RA duration was 11.6 years; and the HAQ score correlated strongly with various markers for decreased productivity including sick leaves, temporary or permanent work discontinuation, and having unwillingly downgraded from a full-time to a part-time work schedule or changed to a different job. Among job seekers, 54% had lost their previous job because of their RA. CONCLUSION: RA is associated with various forms of work disability, which are directly related to the severity of disease-related functional impairments.

Persistence and adherence to single-tablet regimens in HIV treatment: a cohort study from the French National Healthcare Insurance Database.

OBJECTIVES: To compare adherence and persistence (continuous treatment with a prescribed medication) in HIV adult patients who received combination ART (cART) as a once-daily single-tablet regimen (STR) versus other administration schedules. METHODS: A representative random sample of the French National Healthcare Insurance Database was used. Adherence and persistence were compared according to their administration schedules using χ(2) and survival analyses. STRs were marketed in France in 2009 and the study period was selected to allow a sufficient number of patients with an STR and a relevant duration of follow-up. RESULTS: During the period covered (2006-11), 362 HIV-positive adult antiretroviral-naive patients (566 lines of treatments) were selected. The mean rates of adherence were 89.6% for the STR (tenofovir/emtricitabine/efavirenz; n = 76), 86.4% for cART with >1 pill once daily (n = 242) and 77.0% for cART with >1 daily intake (n = 248; P < 0.0001 versus STR). Kaplan-Meier estimations of persistence after 2 years of treatment were 79.1% for the STR, 53.3% for cART with >1 pill once daily and 51.8% for cART with >1 daily intake (P = 0.001; log-rank test). Sensitivity analyses confirmed these results. After excluding treatment sequences showing a switch from tenofovir/emtricitabine plus efavirenz to the similar STR, the rates of persistence were 80.3% for the STR (n = 60), 77.3% for atazanavir-containing cART (n = 96) and 68.3% for darunavir-containing cART (n = 56) at 18 months (global P = 0.006). CONCLUSIONS: These results suggest that persistence is higher in HIV patients treated with an STR compared with other administration schedules. Significant benefit in terms of adherence was observed with the STR in comparison with regimens with >1 daily intake but no difference was observed when comparing with regimens involving >1 pill once daily.

Impact of bariatric surgery on the medical management and costs of obese patients in France: an analysis of a national representative claims database.

BACKGROUND: Bariatric surgery (BS) procedures are increasing but few studies have investigated their influence on medical management and costs in France. METHODS: The "Echantillon Généraliste des Beneficiaires" (EGB) is a 1/97 representative sample (n = 520,000 in 2011) of a national claims database covering about 80 % of the population. Adult patients treated for the first time with BS from January 2007 to December 2009 were identified, and a cohort including 350 patients was constituted with a 2-year follow-up before and after this primary procedure date (T). All items of reimbursed medical consumption and comorbidities over this period were identified. A comparison on the consumed resources and costs of BS was performed over time using multivariate models. RESULTS: The annual per capita reimbursed health expenses evolved from 2633 (±3124) in year (T - 2) to 3557 (±3380) in (T - 1), to 4240 (±3840) in (T + 1) (excluding procedure cost), and to 3755 (±5037) in (T + 2) with differences according to the type of surgery. In 39 % of patients, the evolution of those costs between (T - 2) and (T + 2) decreased by 5 %. In multivariate models, the significant factors were the presence of diabetes or hypertension medications before the procedure. Most items of medical consumption increased over the period pre- and post-procedure and started to decrease in (T + 2). CONCLUSIONS: Although this series contains mostly gastric bandings, which were less likely to affect comorbidities, the workup for preparing BS was probably an opportunity to benefit from a general clinical assessment which has generated extra short-term medical consumption and expenses began decreasing without allowing return on investment.

[Use of drug reimbursement as markers of disease for epidemiological and cost analysis: The case of severe epilepsy in France]. / Intérêt des bases de remboursement de l'Assurance maladie pour l'analyse de la prise en charge des maladies chroniques : le cas de l'épilepsie.

OBJECTIVES: Population characteristics of epileptic patients remain poorly documented in France. Health Insurance claims database may be useful to perform cost and epidemiological studies provided that patients' diagnosis could be identified especially through drugs used as markers. This study explored the possibility to use the French Sickness Fund (FSF) database to determine the prevalence and direct cost of epilepsy. METHOD: The "FSF" reimbursement database is a 1/97 representative sample of the population covered under the French General Scheme. Only the fraction of patients fully covered for epilepsy may be identified by a diagnosis in the database. Others can only be identified through their claims for antiepileptic drugs (AEDs) with the limitation that, among the 19 AEDs used, some are not specific for epilepsy. An algorithm was built to select patients to get a range of prevalence estimates whereas medical expenses of patients were derived on the fully covered sub-population. RESULTS: Only patients treated in polytherapy (≥2 AEDs) were deemed to be identified in a relevant way by an algorithm based on drug usage. The prevalence of epilepsy in this sub-group in 2009 was estimated between 1.83 and 2.79‰ (93,000-142,000 patients). A proportion of 70.1 to 71.6% were fully covered for their expenses, with epilepsy alone as a cause in only 27 to 33% of them. The most frequent other co-morbidities were psychiatric disorders and invalidating stroke. The annual per capita expenses were in the range 6.696-6.601€ in patients in polytherapy. Inpatient care and drug costs represented about 50 and 27% of overall expenses, respectively. The increase by 24.4% of polytherapy patients mean costs as compared to monotherapy raised to 72% (IC 95: 44-106%) after adjustment for age, gender and presence of severe co-morbidity. CONCLUSION: In France, in 2009, 93,000 to 142,000 epileptic patients have been treated for epilepsy with a polytherapy. About one out of three patients only benefited from a full coverage of their medical expenses for epilepsy but half of them were fully covered for another disease. This resulted from the frequent presence of a severe co-morbidity especially psychiatric or due to a history of an invalidating stroke. Conversely, about 30% of epileptic patients in polytherapy, fully eligible to a full coverage did not benefit from it, which suggested an important sub-declaration of severe epilepsy.