[Comparison of mortality of lung cancer resections in France to other European countries]. / Comparaison de la mortalité des résections pulmonaires en France aux autres pays Européens.

BACKGROUND: France is characterized by the dispersion of its technical surgical platforms, and it seemed interesting for us to obtain information on quality of care compared to other European countries, which often have different organizations and practices. The objective of the study was to compare the 30-day mortality of patients operated on for bronchial cancer in France with that of other European countries. METHOD: We conducted a literature review on practices in different European countries. The terms used for the selection were: lung cancer surgery, 30-day mortality in different hospitals in European countries. RESULTS: We selected 9 articles corresponding to 9 European countries. The correlation coefficient between the number of lung resections per year and the population of the country was 0.967. The linear regression model between number of annual lung resections and population showed that except for Great Britain, most of the countries were close to the linear regression line. Germany and France had a mortality rate of 2.887% and 2.937% respectively, whereas the average is 2.13%. Following sensitivity analysis, the mortality rates for Germany and France remained higher than the average. CONCLUSION: France is among the European countries with the highest postoperative mortality rates. These results should induce surgical teams to adopt quality-of-care measures focusing on outcome analysis.

[Readmissions after lung resection in France: The PMSI database]. / Les réadmissions après résection pulmonaire en France : la base de données du PMSI.

BACKGROUND: Readmission within 30 days is an indicator of the quality of care, because it often reflects post-discharge care that is not optimal. The objective of this work is to measure over time on the one hand the readmission rate and on the other hand the number of hospitals with a standardized readmission rate beyond the national average. METHOD: All patients with major pulmonary resection for lung cancer in France were extracted from the PMSI national database. Readmission within 30 days was defined as any new hospitalization either in the same hospital or in another establishment. RESULTS: From January 1, 2005 to December 31, 2018, 110,603 patients were included. The 30-day all-cause readmissions rate was 24.9% (n=27,540). Patients after pneumonectomy had a readmission rate of 37% (n=4918) and 23% after lobectomy (n=2684) (P<0.0001). For the first period, we counted 10 hospitals with a standardized readmissions rate above the 99.8 limit and 10 hospitals above the 95% limit. For the second period, 8 hospitals had a standardized readmission rate above the 99.8% limit and 11 hospitals above the 95% limit. For the third period, 7 hospitals had a standardized readmission rate above the 99.8% limit and 6 hospitals above the 95% limit. CONCLUSION: Readmissions to hospital 30 days after major lung resection for cancer in France declined little during these three periods. Measures to prevent readmissions should be introduced.

Early exposure of pregnant women to non-steroidal anti-inflammatory drugs delivered outside hospitals and preterm birth risk: nationwide cohort study.

OBJECTIVE: To assess the risk of preterm birth associated with nonsteroidal anti-inflammatory drugs (NSAIDs), focusing on early exposure in the period from conception to 22 weeks of gestation (WG). DESIGN: National population-based retrospective cohort study. SETTING: The French National Health Insurance Database that includes hospital discharge data and health claims data. POPULATION: Singleton pregnancies (2012-2014) with a live birth occurring after 22WG from women between 15 and 45 years old and insured the year before the first day of gestation and during pregnancy were included. We excluded pregnancies for which anti-inflammatory medications were dispensed after 22WG. METHODS: The association between exposure and risk of preterm birth was evaluated with GEE models, adjusting on a large number of covariables, socio-demographic variables, maternal comorbidities, prescription drugs and pregnancy complications. MAIN OUTCOME MEASURES: Prematurity, defined as a birth that occurred before 37WG. RESULTS: Among our 1 598 330 singleton pregnancies, early exposure to non-selective NSAIDs was associated with a significantly increased risk of preterm birth, regardless of the severity of prematurity: adjusted odds ratio (aOR) = 1.76 (95% CI 1.54-2.00) for extreme prematurity (95% CI 22-27WG), 1.28 (95% CI 1.17-1.40) for moderate prematurity (28-31WG) and 1.08 (95% CI 1.05-1.11) for late prematurity (32-36WG), with non-overlapping confidence intervals. We identified five NSAIDs for which the risk of premature birth was significantly increased: ketoprofen, flurbiprofen, nabumetone, etodolac and indomethacin: for the latter, aOR = 1.92 (95% CI 1.37-2.70) with aOR = 9.33 (95% CI 3.75-23.22) for extreme prematurity. CONCLUSION: Overall, non-selective NSAID use (delivered outside hospitals) during the first 22WG was found to be associated with an increased risk of prematurity. However, the association differs among NSAIDs. TWEETABLE ABSTRACT: French study for which early exposure to non-selective NSAIDs was associated with increased risk of prematurity.

[Evaluation of surgical practice in the treatment of lung cancer in France from the PMSI national database]. / Évaluation de la pratique chirurgicale dans le traitement du cancer bronchique en France à partir de la base nationale du PMSI.

BACKGROUND: In recent years, improving the quality of care has been a concern for health professionals in France, through the certification of institutions, accreditation and continuous professional development. Evaluation of these different measures has rarely been carried out. The objective of the study was to evaluate the quality of surgical management of lung cancer in different regions using hospital mortality as an indicator. METHOD: From the national database of the Program of Medical Information Systems (PMSI), data on all patients who had undergone surgery for lung cancer were extracted as well as the characteristics of the centers. The main outcome criterion was hospital mortality. Logistic models allowed an estimation of the risk standardized mortality rate for each center. RESULTS: From January 1, 2015 to December 31, 2015, 10,675 patients underwent surgery for lung cancer in 158 French centers. The hospital mortality rate was 3.43% (n=366). Thirty-nine facilities (25%) performed fewer than 15 pulmonary resections. The minimum activity volume was a single pulmonary resection during the year and the maximum was 300 interventions with a coefficient of variation estimated at 147%. Hospital mortality ranged from 0 % to 50% depending on the entries with a coefficient of variation of 112%. For some regions, it is possible to count up to 5 centers per million inhabitants (Languedoc-Roussillon) or 4 centers per million inhabitants (Limousin, Pays-de-Loire). The majority of regions had 3 centers per million inhabitants. Eleven regions have no centers with a standardized mortality rate below 3%. Five regions (Languedoc-Roussillon, Pays-de-Loire, Aquitaine, Brittany and Provence Alpes Côte d'Azur) have at least two centers with a risk standardized rate of mortality above 4%. Among the academic centers, 20% have a risk standardized mortality rate of less than 3%. Among the centers with a risk standardized rate of mortality<3%, 20% performed more than 39 pulmonary resections, 7% between 39 and 15 procedures and 0% for centers with<15 interventions. CONCLUSION: This work confirms that hospital volume is one of the components of quality of care. The number of centers should be adapted to the actual needs of the population in order to enable patients to access effective services.

[Study of algorithms to identify schizophrenia in the SNIIRAM database conducted by the REDSIAM network]. / Étude des algorithmes de repérage de la schizophrénie dans le Sniiram par le réseau REDSIAM.

BACKGROUND: The aim of the REDSIAM network is to foster communication between users of French medico-administrative databases and to validate and promote analysis methods suitable for the data. Within this network, the working group "Mental and behavioral disorders" took an interest in algorithms to identify adult schizophrenia in the SNIIRAM database and inventoried identification criteria for patients with schizophrenia in these databases. METHODS: The methodology was based on interviews with nine experts in schizophrenia concerning the procedures they use to identify patients with schizophrenia disorders in databases. The interviews were based on a questionnaire and conducted by telephone. RESULTS: The synthesis of the interviews showed that the SNIIRAM contains various tables which allow coders to identify patients suffering from schizophrenia: chronic disease status, drugs and hospitalizations. Taken separately, these criteria were not sufficient to recognize patients with schizophrenia, an algorithm should be based on all of them. Apparently, only one-third of people living with schizophrenia benefit from the longstanding disease status. Not all patients are hospitalized, and coding for diagnoses at the hospitalization, notably for short stays in medicine, surgery or obstetrics departments, is not exhaustive. As for treatment with antipsychotics, it is not specific enough as such treatments are also prescribed to patients with bipolar disorders, or even other disorders. It seems appropriate to combine these complementary criteria, while keeping in mind out-patient care (every year 80,000 patients are seen exclusively in an outpatient setting), even if these data are difficult to link with other information. Finally, the experts made three propositions for selection algorithms of patients with schizophrenia. CONCLUSION: Patients with schizophrenia can be relatively accurately identified using SNIIRAM data. Different combinations of the selected criteria must be used depending on the objectives and they must be related to an appropriate length of time.

Customized and non-customized live-born birth-weight curves of single and uncomplicated pregnancies from the Burgundy perinatal network. Part I - methodology.

OBJECTIVES: To establish non-customized and customized birth-weight curves of single and uncomplicated pregnancies according to gestational age. MATERIALS AND METHODS: We used data for 64,173 mother-infants pairs from the Burgundy perinatal network database (France) over the period 2005-2013. A validated procedure was used to link mothers with their newborns, and maternal and fetal pathologies likely to affect birth weight were excluded. Multiple regression analysis with covariate selection was used to build a customized growth curve with maternal and fetal parameters. RESULTS: Using this methodology, three different curves were generated: an unadjusted curve for birth weight, named B0, an curve adjusted for fetal gender, named B1 and a curve adjusted for fetal and maternal parameters (fetal gender, maternal height, weight and parity), named B2. CONCLUSION: We present curves showing an original distribution of birth weights for the French population in order to improve the diagnosis of small for gestational age. These curves are not based on the Gardosi in utero growth model but on actual birth weights, thus limiting bias. Nevertheless, the minimum gestational age was 25weeks as there was an insufficient number of live-borns in small gestational ages.

Early screening for type 2 diabetes following gestational diabetes mellitus in France: hardly any impact of the 2010 guidelines.

AIMS: Women who had gestational diabetes mellitus (GDM) have a high risk of type 2 diabetes mellitus (T2DM) in the years following pregnancy. Most follow-up screening studies have been conducted in limited geographical areas leading to large variability in the results. The aim of our investigation was to measure how the publication of guidelines affected early screening for T2DM after a pregnancy with GDM during the period 2007-2013, in France. METHODS: We conducted a retrospective cohort study in a representative sample of 1/97th of the French population using data from the "National Health Insurance Inter-Regime Information System," which collects individual hospital and non-hospital data for healthcare consumption. RESULTS: The sample included 49,080 women who gave birth in 2007-2013. In the following 3 months, only 18.49% of women with GDM had an oral glucose tolerance test or a blood glucose test in 2007. This rate had not significantly increased in 2013 (p = 0.18). The proportion of women with GDM who had the recommended glycemic follow-up at 3 months (20.30 vs. 21.58%, p = 0.19) and 6 months (32.48 vs. 37.16%, p = 0.08) was not significantly different before the guidelines (2008-2009) and after the guidelines (2012-2013). At 12 months, the difference was significant (46.77 vs. 54.05%, p = 0.009). CONCLUSION: Postpartum screening has improved only slightly since the guidelines and remains largely insufficient, with less than 25% of women with GDM screened in the first 3 months. In the first year after delivery, less than 60% of women were screened for T2DM.

Intrauterine balloon tamponade for management of severe postpartum haemorrhage in a perinatal network: a prospective cohort study.

OBJECTIVE: To evaluate the effectiveness of intrauterine balloon tamponade (IUBT) for management of severe postpartum haemorrhage (PPH). To identify the factors predicting IUBT failure. DESIGN: Prospective cohort study. SETTING: Ten maternity units in a perinatal network. POPULATION: Women treated by IUBT from July 2010 to March 2013. METHODS: The global IUBT success rate was expressed as the number of women with severe PPH who were successfully treated by IUBT divided by the total number treated by IUBT. IUBT failure was defined as the need for arterial embolisation or surgery. Logistic regression analysis was used to estimate factors predicting IUBT failure. MAIN OUTCOME MEASURES: Global IUBT success rate. Factors associated with IUBT failure. RESULTS: Intrauterine balloon tamponade was attempted in 226 women: 171 after vaginal delivery (VD) (75.7%) and 55 during or after caesarean delivery (CD) (24.3%). The global success rate was 83.2% (188/226) and was significantly higher after VD (152/171, 88.9%) than CD (36/55, 65.5%, P < 0.01). The percentage of CD was significantly higher in the failure group (50.0 versus 19.1%, P < 0.01), as was mean (SD) estimated blood loss before IUBT: 1508 ± 675 ml versus 1064 ± 476, P < 0.01. Coagulopathy was significantly more frequent in the failure group (50.0% versus 17.2%, P < 0.01). CD [Odds ratio (OR) 3.5; 95% CI 1.6-7.6], estimated blood loss before IUBT (OR 3.2; 95% CI 1.5-6.8) and coagulopathy (OR 5.6; 95% CI 2.5-13.0) were predictive of IUBT failure. CONCLUSION: Intrauterine balloon tamponade is an effective method for treating severe PPH. Early balloon deployment before the development of coagulopathy increases its success rate. TWEETABLE ABSTRACT: Intrauterine balloon tamponade is effective for achieving haemostasis in intractable postpartum haemorrhages.

[Quality of life after deep pelvic endometriosis surgery: Evaluation of a French version of the EHP-30]. / Qualité de vie après chirurgie de l'endométriose pelvienne profonde : évaluation d'une version française de l'EHP-30.

OBJECTIVE: To evaluate the changes in the quality of life of patients after deep pelvic endometriosis surgery, with a French version of EHP-30 questionnaire, and the capacity of the EHP-30 to carry out this measurement. MATERIAL AND METHODS: Study prospective monocentric, conducted in the obstetrics and gynecology department of the CHU Dijon during the period of October 2012 from October 2013. A EHP-30 questionnaire was given to patients before surgery. The same questionnaire was sent to their homes, away from surgery (3-6 months) to inform about their postoperative quality of life. The difference in preoperative and postoperative scores was tested using the test Wilcoxon signed ranks. A difference was considered significant if the p-value was less than or equal to 0.05. Sensitivity to change was calculated by the method of effect size (ES). The size of the effect is defined as the difference in mean preoperative and postoperative scores divided by the standard deviation of preoperative scores. A size effet of 0.20 indicates less change scores, of 0.50 a moderate change and of 0.80 a material change. RESULTS: We included 22 patients in total in the prospective analysis. The majority of patients had gynecological symptoms of dysmenorrhea with 69.7%, 75.7% and 75.7% dyspareunia chronic pelvic pain. Nineteen patients (57.6%) had gastro-intestinal symptoms. Urinary symptoms were less frequent. The results of the EHP-30 showed a significant improvement for the items "pain" (P=0.01), "control and powerlessness" (P=0.02), "emotional well-being" (P<0,01) "social relations" (P<0.01), "sexual intercourse" (P=0.03) and "relationship with the medical world" (P=0.05). We observed a non-significant improvement for the items "self-image" (P=0.44), "work" (P=0.48) and "relationships with children" (P=0.50). The size of the effect (ES) was low to high for all dimensions of the questionnaire, ranging from 0.1 to 0.6 for the entire group. A significant sensitivity to change was found for the items "pain" (ES=0.60), "control and powerlessness" (ES=0.62), "social relations" (ES=0.57). A moderate sensitivity to change was found for the items "emotional well-being" (ES=0.29), "relationship with the medical world" (ES=0.26). A low sensitivity to change was found for the items "relationships with children" (ES=0.06), "self-image" (ES=0.16), "work" (ES=0.18), "sexual intercourse" (ES=0.20). A size that is important to moderate effect corresponded to a statistically significant improvement of the score EHP-30. CONCLUSION: This study showed that the EHP-30 is a sensitive tool to change the health status and an appropriate instrument for the assessment of treatment effects in patients with deep pelvic endometriosis.

[Thierry's spatulas or forceps--a comparison between maternal-fetal morbidities]. / Spatules de Thierry ou forceps : comparaison des morbidités materno-fœtales.

OBJECTIVE: To compare maternal and fetal morbidity during forceps or Thierry spatulas operative deliveries. METHODS: Retrospective and descriptive study in a one center from 2006 to 2012. Operative deliveries were performed with forceps or spatulas, in case of no mobile fetal progression, on singleton term pregnancies with cephalic presentation, no abnormal heart rate and without any pregnancy pathology. RESULTS: Our studies included 65 operative deliveries with spatulas versus 77 with forceps, among a scientifically comparable population. At maternal level, when comparing spatulas versus forceps, there were more intact perineum (5.19% vs 15.38%; P=0.04), the same rate of vaginal tears and less severe perineal injuries (0 vs 6; P=0.05) in favor of spatulas. Extractions performed in "unfavorable" conditions were mostly conducted with forceps. In 50% of the case, an episiotomy was associated with severe perineal lesions. As far as fetal morbidity is concerned, there were more newborn's facial injuries using the forceps tool (18.18% vs 3.08%; P=0.0046). The remaining data were comparable. CONCLUSIONS: Thierry spatulas are less harmful than forceps to maternal tissues and reduce facial injuries of the newborn. Consequently, spatulas could benefit from a wider use. However, a prospective study will be needed to confirm our results.

[Evaluation of the metrological quality of the medico-administrative data for perinatal indicators: A pilot study in 3 university hospitals]. / Évaluation de la qualité métrologique des données du programme de médicalisation du système d'information (PMSI) en périnatalité : étude pilote réalisée dans 3 CHU.

BACKGROUND: In order to assess public health policies for the perinatal period, routinely produced indicators are needed for the whole population. In France, these indicators are used to compare the national public health policy with those of other European countries. French administrative and medical data (PMSI) are straightforward and reliable and may be a valuable source of information for research. This study aimed to measure the quality of PMSI data from three university health centers for core indicators in perinatal health. METHOD: PMSI data were compared with medical files in 2012 from 300 live births after 22 weeks of amenorrhea, drawn at random from University Hospitals in Dijon, Paris and Nancy. The variables were chosen based on the Europeristat Project's core and recommended indicators, as well as those of the French National Perinatal survey conducted in 2010. The information gathered blindly from the medical files was compared with the PMSI data positive predictive value (PPV) and the sensitivity was used to assess data quality. RESULTS: Data on maternal age, parity and mode of delivery as well as the rates of premature births were superimposable for the two sources. The PPV for epidural injection was 96.2% and 94.3% for perineal tears. Overall, maternal morbidity was underdocumented in the PMSI, so the PPV was 100.0% for pre-existing diabetes, 88.9% for gestational diabetes and 100.0% for high blood pressure with a rate of 9.0% in PMSI and 6.3% in the medical files. The PPV for bleeding during labor was 89.5%. CONCLUSION: To conclude, PMSI data are apparently becoming more and more reliable for two reasons: on one hand, the importance of these data for budgetary promotion in hospitals; on the other, the increasing use of this information for statistical and epidemiological purposes.

[Quality of perinatal statistics from hospital discharge data: comparison with civil registration and the 2010 National Perinatal Survey]. / Qualité des données périnatales issues du PMSI: comparaison avec l'état civil et l'enquête nationale périnatale 2010.

OBJECTIVE: To compare hospital discharge data (PMSI) with data in the reference databases: vital statistics and National Perinatal Surveys (NPS) for the principal perinatal indicators. METHODS: Data concerning hospitalizations for delivery and childbirth were extracted from the PMSI 2010 database. The exhaustiveness was assessed by comparing discharge data with data from birth certificates. Indicators were compared with those in the 2010 NPS, which was based on a representative sample of births (n=15,000), using 95% confidence intervals. RESULTS: About 823,360 hospital abstracts with delivery and 829,351 hospital abstracts with live births were considered. The exhaustiveness of the PMSI was 99.6% for live births in Metropolitan France. The distribution of maternal age, mode of delivery, birth weight and gestational age in the PMSI and NPS were very similar. In Metropolitan France, the prematurity rate was 6.9% (PMSI) vs. 6.6% [6.2-7.0] (NPS) and the rate of caesarean was 20.6% vs. 20.4% [19.8-21.1]. There were marked differences for the percentage of birth weights<2500g and for maternal diseases. CONCLUSION: The routine use of the PMSI for some indicators for follow-up purposes is foreseeable. Validation studies are still necessary for maternal diseases, for which recording is less standardized.

[Correlation between the perineal-to-skull measurement by tranperineal ultrasound, failure of vaginal operative delivery and maternal-fetal morbidity]. / Corrélation entre la mesure de la distance périnée-crâne à l'échographie transpérinéale, les échecs d'extraction instrumentale et la morbidité materno-fœtale.

OBJECTIVES: To assess the influence of the perineal-to-skull measurement by tranperineal ultrasound (TPU) on the outcome of vaginal operative extraction together with maternal and fetal morbidity. MATERIALS AND METHODS: Retrospective, monocentric and descriptive study was done on 272 patients, from 2009 January 1st to 2009 December 31st. It compares the failure rate of instrumental extraction, total caesarean section rate together with the maternal morbidity (type of perineal tears and post-partum hemorrhage rate) and fetal morbidity (5' Apgar score, arterial pH, transfer in neonatal intensive care unit) to the values obtained with TPU. RESULTS: There is a correlation between the perineal-to-skull measurements higher or equal to 50mm at TPU and the instrumental failure rate (<50mm 0.8% vs. ≥50mm 11.9%; P<0.0001), caesarean (0.9% vs. 33.3%; P<0.0001), post-partum haemorrhage (3% vs. 11.9%; P=0.02), et paediatric intervention (16.7% vs. 31%; P=0.03). CONCLUSION: Perineal-to-skull distance measured with TPU higher or equal to 50mm is at risk of instrumental failure and maternal morbidity. Associated with clinical examination and usual obstetrical risk factors, TPU could be useful to the decision between operative vaginal delivery and prophylactic caesarean section.

Classification of hospital pathways in the management of cancer: application to lung cancer in the region of burgundy.

CONTEXT: The evaluation of national cancer plans is an important aspect of their implementation. For this evaluation, the principal actors in the field (doctors, nurses, etc.) as well as decision-makers must have access to information that is reliable, synthetic and easy to interpret, and which reflects the implementation process in the field. We propose here a methodology to make this type of information available in the context of reducing inequalities with regard to access to healthcare for patients with lung cancer in the region of Burgundy. METHODS: We used the national medico-administrative DRG-type database, which gathers together all hospital stays. By using this database, it was possible to identify and reconstruct the care management history of these patients. That is, by linking together all attended hospitals, sorted chronologically. Eligible patients were at least 18 years old, whatever the gender and had undergone surgery for their lung cancer. They had to be residents of Burgundy at the time of the first operation between 2006 and 2008. Patient's pathway was defined as the sequence of all attended hospitals (hospital stays) during the year of follow up linked together using an anonymised patient identifier. We then constructed a pathway typology of pathway using an unsupervised clustering method, and conducted a spatial analysis of this typology. RESULTS: Between 2006 and 2008, we selected 495 patients in the 4 administrative departments of the Burgundy region. They accounted for a total of 3821 stays during the year of follow-up. There were 393 men (79%) and the mean age was 64 (95% confidence interval: 63-65) years. We reconstructed 94 pathways (about five per patient). Here, neighbourhood's cares accounted for 41% of them, while 44% included a surgical intervention outside the region of Burgundy. We constructed a pathway typology with five classes. Spatial analysis showed that the vast majority of initial surgeries took place in the major regional centres. CONCLUSION: The construction of a pathway typology leads to better understanding of the reasoning that lies behind the movements of patients. It opens the way for analysis of the collaboration between the different healthcares establishments attended, which should bring to light associations that need to be developed.

[Does low-risk delivery exist?]. / L'accouchement à bas risque: existe-t-il ?

OBJECTIVES: The main objective of our study is to evaluate the rate of call of the obstetrician during childbirth supposed in low-risk and compare it to high-risk deliveries in a maternity service level II. The secondary objective is to assess the level of intervention of the obstetrician with the patient in both groups. PATIENTS AND METHODS: This is a prospective study of 490 patients including 259 classified as low risk based on obstetric criteria of Bourgogne Perinatal Network. The criteria considered for the call and/or intervention of the obstetrician were the following: altered fetal heart rate, lactate scalp, instrumental delivery, cesarean section, complete or complicated perineal, serious event during labor (cord prolapse, uterine rupture…), postpartum hemorrhage treated by prostaglandin ocytocic. The high-risk group is taken as reference for the calculation of confidence intervals. RESULTS: The rate of call of the obstetrician in the low versus high risk are: 37% [95% CI: 0.98-2.11] and 29% [95% CI: 1.00] (P=0.0587). The rate of intervention of the obstetrician in the low versus high risk is 21% [95% CI: 1.15-3.07] and 12% [95% CI: 1.00] (P=0.0109). CONCLUSION: The delivery process is unpredictable and potentially risky. Thirty-seven percent of patients classified as low risk at the beginning of labour have required intervention of the obstetrician and 21% of them his intervention.

Estimation of national colorectal-cancer incidence using claims databases.

Background. The aim of the study was to assess the accuracy of the colorectal-cancer incidence estimated from administrative data. Methods. We selected potential incident colorectal-cancer cases in 2004-2005 French administrative data, using two alternative algorithms. The first was based only on diagnostic and procedure codes, whereas the second considered the past history of the patient. Results of both methods were assessed against two corresponding local cancer registries, acting as "gold standards." We then constructed a multivariable regression model to estimate the corrected total number of incident colorectal-cancer cases from the whole national administrative database. Results. The first algorithm provided an estimated local incidence very close to that given by the regional registries (646 versus 645 incident cases) and had good sensitivity and positive predictive values (about 75% for both). The second algorithm overestimated the incidence by about 50% and had a poor positive predictive value of about 60%. The estimation of national incidence obtained by the first algorithm differed from that observed in 14 registries by only 2.34%. Conclusion. This study shows the usefulness of administrative databases for countries with no national cancer registry and suggests a method for correcting the estimates provided by these data.

Hypoproteinemia on the first day of life and adverse outcome in very preterm infants admitted to the neonatal intensive care unit.

OBJECTIVE: We aimed to investigate the relationship between day-1 hypoproteinemia and severe adverse outcome (SAO) in very preterm infants admitted to the neonatal intensive care unit (NICU). STUDY DESIGN: Retrospective study of all patients born from 24 to 31 weeks gestation and cared for in our NICU over an 8-year period. Infants were excluded if the serum protein value on the first day of life was not available. RESULT: A total of 913 patients were included. In all, 14.6% presented with SAO (death or severe neurological injury on cranial ultrasound). Hypoproteinemia (total protein level <40 g l(-1)) on day 1 of life occurred in 19.5 % of all patients. The rate of SAO was 33.7% in patients with hypoproteinemia and 9.9% in those with normoproteinemia (P<0.0001). Logistic and multiple regression analysis confirmed that the association hypoproteinemia-SAO remained significant after adjustment for the other major predictors of outcome present at baseline (odds ratio 3.4; 95% confidence interval 2.1-5.4; P<0.0001). CONCLUSION: Hypoproteinemia was highly associated with SAO in this cohort of critically ill preterm infants. We are unable to explain the link between hypoproteinemia and adverse outcome in our population. This investigation serves as a hypothesis-generating report of a large preterm infants sample, and suggests the need to assess the predictive accuracy for adverse outcome of hypoproteinemia in future prospective studies.