Cause of Death after Traumatic Brain Injury: A Population-Based Health Record Review Analysis Referenced for Nonhead Trauma

2021 ◽  
pp. 1-8
Author(s):  
Dmitry Esterov ◽  
Erica Bellamkonda ◽  
Jay Mandrekar ◽  
Jeanine E. Ransom ◽  
Allen W. Brown

<b><i>Introduction:</i></b> Traumatic brain injury (TBI) is a leading cause of disability and is associated with decreased survival. Although it is generally accepted that TBI increases risk of death in acute and postacute periods after injury, causes of premature death after TBI in the long term are less clear. <b><i>Methods:</i></b> A cohort sample of Olmsted County, Minnesota, residents with confirmed TBI from January 1987 through December 1999 was identified. Each case was assigned an age- and sex-matched non-TBI referent case, called <i>regular referent</i>. Confirmed TBI cases with simultaneous nonhead injuries were identified, labeled <i>special cases</i>. These were assigned 2 age- and sex-matched <i>special referents</i> with nonhead injuries of similar severity. Underlying causes of death in each case were categorized using death certificates, <i>International Classification of Diseases</i>, <i>Ninth Revision</i>, <i>International Statistical Classification of Diseases</i>, <i>Tenth Revision</i>, and manual health record review. Comparisons were made over the study period and among 6-month survivors. <b><i>Results:</i></b> Case-regular referent pairs (<i>n</i> = 1,257) were identified over the study period, and 221 were special cases. In total, 237 deaths occurred among these pairs. A statistically significant difference was observed between total number of deaths among all cases (<i>n</i> = 139, 11%) and regular referents (<i>n</i> = 98, 8%) (<i>p</i> = 0.006) over the entire period. This outcome was not true for special cases (32/221, 14%) and special referents (61/441, 14%) (<i>p</i> = 0.81). A greater proportion of deaths by external cause than all other causes was observed in all cases (52/139, 37%) versus regular referents (3/98, 3%) and in special cases (13/32, 41%) versus special referents (5/61, 8%) (<i>p</i> &#x3c; 0.001 for both). Among all case-referent pairs surviving 6 months, no difference was found between total number of deaths (<i>p</i> = 0.82). The underlying cause of death between these 2 groups was significantly different for external causes only (<i>p</i> &#x3c; 0.01). For special cases surviving 6 months versus special referents, no difference was observed in total number of deaths (<i>p</i> = 0.24) or underlying causes of death (<i>p</i> = 1.00) between groups. <b><i>Discussion/Conclusion:</i></b> This population-based case-matched referent study showed that increased risk of death after TBI existed only during the first 6 months after injury, and the difference was due to external causes.

2014 ◽  
Vol 48 (4) ◽  
pp. 671-681 ◽  
Author(s):  
Elisabeth França ◽  
Renato Teixeira ◽  
Lenice Ishitani ◽  
Bruce Bartholow Duncan ◽  
Juan José Cortez-Escalante ◽  
...  

OBJECTIVE To propose a method of redistributing ill-defined causes of death (IDCD) based on the investigation of such causes.METHODS In 2010, an evaluation of the results of investigating the causes of death classified as IDCD in accordance with chapter 18 of the International Classification of Diseases (ICD-10) by the Mortality Information System was performed. The redistribution coefficients were calculated according to the proportional distribution of ill-defined causes reclassified after investigation in any chapter of the ICD-10, except for chapter 18, and used to redistribute the ill-defined causes not investigated and remaining by sex and age. The IDCD redistribution coefficient was compared with two usual methods of redistribution: a) Total redistribution coefficient, based on the proportional distribution of all the defined causes originally notified and b) Non-external redistribution coefficient, similar to the previous, but excluding external causes.RESULTS Of the 97,314 deaths by ill-defined causes reported in 2010, 30.3% were investigated, and 65.5% of those were reclassified as defined causes after the investigation. Endocrine diseases, mental disorders, and maternal causes had a higher representation among the reclassified ill-defined causes, contrary to infectious diseases, neoplasms, and genitourinary diseases, with higher proportions among the defined causes reported. External causes represented 9.3% of the ill-defined causes reclassified. The correction of mortality rates by the total redistribution coefficient and non-external redistribution coefficient increased the magnitude of the rates by a relatively similar factor for most causes, contrary to the IDCD redistribution coefficient that corrected the different causes of death with differentiated weights.CONCLUSIONS The proportional distribution of causes among the ill-defined causes reclassified after investigation was not similar to the original distribution of defined causes. Therefore, the redistribution of the remaining ill-defined causes based on the investigation allows for more appropriate estimates of the mortality risk due to specific causes.


2019 ◽  
Vol 77 (1) ◽  
Author(s):  
Dirk Lafaut ◽  
Hadewijch Vandenheede ◽  
Johan Surkyn ◽  
Gily Coene

Abstract Background So far knowledge about undocumented migrant health status is poor. The objective of this study is to compare patterns in causes of death between undocumented migrants and legal residents, of both migrant and non-migrant origin. Method Using cause-of-death data, we compared undocumented migrants with Belgian residents and documented migrants through logistic regression analyses.. Results This study shows that male undocumented migrants have a significantly higher risk of death from cardiovascular diseases compared to male Belgian residents (OR: 1.37) and documented migrants (OR: 2.17). Male undocumented migrants also have an increased risk of dying from external causes of death compared to documented migrants (OR: 1.93). Furthermore, we found a lower risk of suicidal death in undocumented migrants compared to Belgian residents (OR men: 0.29, OR women: 0.15). Conclusions We found important differences in underlying causes of death between undocumented migrants and residents in Belgium. These findings urge us to claim improved healthcare provision for undocumented migrants in Belgium. Trial registration Medical ethics committee UZ Jette, Brussels, Belgium – Registration date: 18/05/2016 – Registration number: B.U.N. 143201628279.


1998 ◽  
Vol 32 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Augusto H. Santo ◽  
Celso E. Pinheiro ◽  
Eliana M. Rodrigues

INTRODUCTION: The correct identification of the underlying cause of death and its precise assignment to a code from the International Classification of Diseases are important issues to achieve accurate and universally comparable mortality statistics These factors, among other ones, led to the development of computer software programs in order to automatically identify the underlying cause of death. OBJECTIVE: This work was conceived to compare the underlying causes of death processed respectively by the Automated Classification of Medical Entities (ACME) and the "Sistema de Seleção de Causa Básica de Morte" (SCB) programs. MATERIAL AND METHOD: The comparative evaluation of the underlying causes of death processed respectively by ACME and SCB systems was performed using the input data file for the ACME system that included deaths which occurred in the State of S. Paulo from June to December 1993, totalling 129,104 records of the corresponding death certificates. The differences between underlying causes selected by ACME and SCB systems verified in the month of June, when considered as SCB errors, were used to correct and improve SCB processing logic and its decision tables. RESULTS: The processing of the underlying causes of death by the ACME and SCB systems resulted in 3,278 differences, that were analysed and ascribed to lack of answer to dialogue boxes during processing, to deaths due to human immunodeficiency virus [HIV] disease for which there was no specific provision in any of the systems, to coding and/or keying errors and to actual problems. The detailed analysis of these latter disclosed that the majority of the underlying causes of death processed by the SCB system were correct and that different interpretations were given to the mortality coding rules by each system, that some particular problems could not be explained with the available documentation and that a smaller proportion of problems were identified as SCB errors. CONCLUSION: These results, disclosing a very low and insignificant number of actual problems, guarantees the use of the version of the SCB system for the Ninth Revision of the International Classification of Diseases and assures the continuity of the work which is being undertaken for the Tenth Revision version.


2019 ◽  
Author(s):  
Kyoung Hwa Lee ◽  
Da Eun Kwon ◽  
Kyung Do Han ◽  
Yeonju La ◽  
Sang Hoon Han

Abstract Background The association between human cytomegalovirus (CMV) and dementia remains controversial. Previous studies have suggested that CMV serostatus assessed by serum immunoglobulin G plays a role in neurodegeneration with cognitive impairment. We aimed to evaluate the association between CMV tissue-invasive diseases and vascular dementia (VD) and Alzheimer’s disease (AD).MethodsThe International Classification of Diseases (ICD) 10th revision codes from the National Health Insurance Database covering entire people in Republic of Korea were used to classify patients: case group (n = 687), age ≥40 years with CMV tissue-invasive end-organ disease and control group (n = 3,435), without CMV disease, matched by age and sex (ratio, 1:5). The case and control subjects selected during 2010–2014 with a washout period of the previous 4 years were followed-up until December 2016.ResultsThe multivariate regression model adjusted for age and sex showed a significantly higher incidence of dementia (odds ratio [OR], 2.1; 95% confidence interval [CI], 1.5–3.1) in the case group. The risk of VD (OR, 3.3; 95% CI, 1.3–8.4) was higher than that of AD (OR, 1.7; 95% CI, 1.1–2.8) in the case group. In age subgroup analysis adjusted for sex, patients aged 40–59 years with CMV disease had a significantly higher risk of all kinds of dementia than those aged 60-79 and ≥80 years (OR, 12.6; 95% CI, 3.3–48.8 vs. OR, 2.1; 95% CI, 1.3–3.4 vs. OR, 1.4; 95% CI, 0.7–2.9; P=0.021).Conclusions CMV disease may be associated with the risk of VD.


2021 ◽  
Vol 27 (Suppl 1) ◽  
pp. i9-i12
Author(s):  
Anna Hansen ◽  
Dana Quesinberry ◽  
Peter Akpunonu ◽  
Julia Martin ◽  
Svetla Slavova

IntroductionThe purpose of this study was to estimate the positive predictive value (PPV) of International Classification of Diseases, 10th Revision, Clinical Modification (ICD-10-CM) codes for injury, poisoning, physical or sexual assault complicating pregnancy, childbirth and the puerperium (PCP) to capture injury encounters within both hospital and emergency department claims data.MethodsA medical record review was conducted on a sample (n=157) of inpatient and emergency department claims from one Kentucky healthcare system from 2015 to 2017, with any diagnosis in the ICD-10-CM range O9A.2-O9A.4. Study clinicians reviewed medical records for the sampled cases and used an abstraction form to collect information on documented presence of injury and PCP complications. The study estimated the PPVs and the 95% CIs of O9A.2-O9A.4 codes for (1) capturing injuries and (2) capturing injuries complicating PCP.ResultsThe estimated PPV for the codes O9A.2-O9A.4 to identify injury in the full sample was 79.6% (95% CI 73.3% to 85.9%) and the PPV for capturing injuries complicating PCP was 72.0% (95% CI 65.0% to 79.0%). The estimated PPV for an inpatient principal diagnosis O9A.2-O9A.4 to capture injuries was 90.7% (95% CI 82.0% to 99.4%) and the PPV for capturing injuries complicating PCP was 88.4% (95% CI 78.4% to 98.4%). The estimated PPV for any mention of O9A.2-O9A.4 in emergency department data to capture injuries was 95.2% (95% CI 90.6% to 99.9%) and the PPV for capturing injuries complicating PCP was 81.0% (95% CI 72.4% to 89.5%).DiscussionThe O9A.2-O9A.4 codes captured high percentage true injury cases among pregnant and puerperal women.


Author(s):  
Hua Wang ◽  
Ke Chai ◽  
Minghui Du ◽  
Shengfeng Wang ◽  
Jian-Ping Cai ◽  
...  

Background: Large-scale and population-based studies of heart failure (HF) incidence and prevalence are scarce in China. The study sought to estimate the prevalence, incidence, and cost of HF in China. Methods: We conducted a population-based study using records of 50.0 million individuals ≥25 years old from the national urban employee basic medical insurance from 6 provinces in China in 2017. Incident cases were individuals with a diagnosis of HF (International Classification of Diseases code, and text of diagnosis) in 2017 with a 4-year disease-free period (2013–2016). We calculated standardized rates by applying age standardization to the 2010 Chinese census population. Results: The age-standardized prevalence and incidence were 1.10% (1.10% among men and women) and 275 per 100 000 person-years (287 among men and 261 among women), respectively, accounting for 12.1 million patients with HF and 3.0 million patients with incident HF ≥25 years old. Both prevalence and incidence increased with increasing age (0.57%, 3.86%, and 7.55% for prevalence and 158, 892, and 1655 per 100 000 person-years for incidence among persons who were 25–64, 65–79, and ≥80 years of age, respectively). The inpatient mean cost per-capita was $4406.8 and the proportion with ≥3 hospitalizations among those hospitalized was 40.5%. The outpatient mean cost per-capita was $892.3. Conclusions: HF has placed a considerable burden on health systems in China, and strategies aimed at the prevention and treatment of HF are needed. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: ChiCTR2000029094.


2011 ◽  
Vol 27 (suppl 2) ◽  
pp. s298-s308 ◽  
Author(s):  
Luiz Antonio Chaves Viana ◽  
Maria da Conceição Nascimento Costa ◽  
Jairnilson Silva Paim ◽  
Ligia Maria Vieira-da-Silva

An ecological study was carried out using information zones as units of analysis in order to assess the evolution of socio-spatial inequalities in mortality due to external causes and homicides in Salvador, Bahia State, Brazil, in 2000 and 2006. The Brazilian Institute of Geography and Statistics (Instituto Brasileiro de Geografia e Estatística - IBGE) and the City Health Department (Secretaria Municipal de Saúde) provided the data sources, and causes of death were reviewed and reclassified based on reports from the Institute of Legal Medicine (Instituto Médico Legal). The information zones were classified into four social strata according to income and schooling. The ratio between mortality rates (inequality ratio) was calculated and confirmed a rise of 98.5% in the homicide rate. In 2000, the risk of death due to external causes and murders in the stratum with the worst living conditions was respectively 1.40 and 1.94 times greater than in the reference stratum. In 2006 these figures were 2.02 and 2.24. The authors discuss the implications for inter-sectoral public policies, based on evidence from the study's findings.


2018 ◽  
Vol 160 (3) ◽  
pp. 559-566 ◽  
Author(s):  
Ying-Shuo Hsu ◽  
Wei-Chung Hsu ◽  
Jenq-Yuh Ko ◽  
Te-Huei Yeh ◽  
Chia-Hsuan Lee ◽  
...  

Objective To investigate readmissions among adult inpatients who underwent uvulopalatopharyngoplasty (UPPP) in Taiwan. Design Population-based survey. Setting Retrospective study with the National Health Insurance Database. Methods All cases of inpatient adult UPPP (age >20 years) from 1997 to 2012 were identified through International Classification of Diseases, Ninth Revision, Clinical Modification. Factors associated with readmission within 30 days after surgery were analyzed. Results A total of 38,839 adults with UPPP were identified (mean age, 39.3 years; men, 73.7%). The incidence of UPPP was 14.6 per 100 000 adults, which increased from 1997 to 2012 (6.7 to 16.7 per 100,000, Ptrend < .001). The rates of readmission for any reason, readmission for bleeding, reoperation for bleeding, and 30-day mortality were 4.2%, 1.7%, 1.0%, and 0.14%, respectively. Young age increased the risk of reoperation for bleeding, and old age increased the risk of readmission for any reason and mortality. Men had an increased risk of readmission and reoperation. Hypertension was associated with an increased risk of readmission for any reason (odds ratio [OR], 1.29; 95% CI, 1.10-1.51), bleeding-related readmission (OR, 1.89; 95% CI, 1.52-2.36), and reoperation (OR, 2.47; 95% CI, 1.84-3.30). Concurrent hypopharyngeal surgery was associated with an increased risk of readmission for any reason (OR, 1.34; 95% CI, 1.07-1.66) and bleeding-related readmission (OR, 1.69; 95% CI, 1.25-2.27). Finally, the use of steroids was associated with an increased risk of bleeding-related readmission and reoperation. Conclusions The incidence of adult UPPP increased from 1997 to 2012 in Taiwan. Age, sex, comorbidity, concurrent hypopharyngeal surgery, and drug administration were associated with readmission after inpatient UPPP.


BMJ Open ◽  
2017 ◽  
Vol 7 (8) ◽  
pp. e014508 ◽  
Author(s):  
Erika Frischknecht Christensen ◽  
Mette Dahl Bendtsen ◽  
Thomas Mulvad Larsen ◽  
Flemming Bøgh Jensen ◽  
Tim Alex Lindskou ◽  
...  

ObjectiveDemand for ambulances is growing. Nevertheless, knowledge is limited regarding diagnoses and outcomes in patients receiving emergency ambulances. This study aims to examine time trends in diagnoses and mortality among patients transported with emergency ambulance to hospital.DesignPopulation-based cohort study with linkage of Danish national registries.SettingThe North Denmark Region in 2007–2014.ParticipantsCohort of 148 757 patients transported to hospital by ambulance after calling emergency services.Main outcome measuresThe number of emergency ambulance service patients, distribution of their age, sex, hospital diagnoses, comorbidity, and 1-day and 30-day mortality were assessed by calendar year. Poisson regression with robust variance estimation was used to estimate both age-and sex-adjusted relative risk of death and prevalence ratios for Charlson Comorbidity Index (CCI) to allow comparison by year, with 2007 as reference year.ResultsThe annual number of emergency ambulance service patients increased from 24.3 in 2007 to 40.2 in 2014 per 1000 inhabitants. The proportions of women increased from 43.1% to 46.4% and of patients aged 60+ years from 39.9% to 48.6%, respectively. The proportion of injuries gradually declined, non-specific diagnoses increased, especially the last year. Proportion of patients with high comorbidity (CCI≥3) increased from 6.4% in 2007 to 9.4% in 2014, corresponding to an age- and sex-adjusted prevalence ratio of 1.27 (95% CI 1.16 to 1.39). The 1-day and 30 day mortality decreased from 2.40% to 1.21% and from 5.01% to 4.36%, respectively, from 2007 to 2014, corresponding to age-adjusted and sex-adjusted relative risk of 0.43 (95% CI 0.37 to 0.50) and 0.72 (95% CI 0.66 to 0.79), respectively.ConclusionDuring the 8-year period, the incidence of emergency ambulance service patients, the proportion of women, elderly, and non-specific diagnoses increased. The level of comorbidity increased substantially, whereas the 1-day and 30-day mortality decreased.


2017 ◽  
Vol 42 (7) ◽  
pp. 673-677 ◽  
Author(s):  
J. Nordenskjöld ◽  
M. Englund ◽  
C. Zhou ◽  
I. Atroshi

The prevalence and incidence of doctor-diagnosed Dupuytren’s disease in the general population is unknown. From the healthcare register for Skåne region (population 1.3 million) in southern Sweden, we identified all residents aged ⩾20 years (on 31 December 2013), who 1998 to 2013 had consulted a doctor and received the diagnosis Dupuytren’s disease (International Classification of Diseases 10th Revision code M720). During the 16 years, 7207 current residents (72% men) had been diagnosed with Dupuytren’s disease; the prevalence among men was 1.35% and among women 0.5%. Of all people diagnosed, 56% had received treatment (87% fasciectomy). In 2013, the incidence of first-time doctor-diagnosed Dupuytren’s disease among men was 14 and among women five per 10,000. The annual incidence among men aged ⩾50 years was 27 per 10,000. Clinically important Dupuytren’s disease is common in the general population. Level of evidence: III


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