2017
DOI: 10.1136/bmjopen-2017-019503
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Developing and validating a novel multisource comorbidity score from administrative data: a large population-based cohort study from Italy

Abstract: ObjectiveTo develop and validate a novel comorbidity score (multisource comorbidity score (MCS)) predictive of mortality, hospital admissions and healthcare costs using multiple source information from the administrative Italian National Health System (NHS) databases.MethodsAn index of 34 variables (measured from inpatient diagnoses and outpatient drug prescriptions within 2 years before baseline) independently predicting 1-year mortality in a sample of 500 000 individuals aged 50 years or older randomly selec… Show more

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Cited by 83 publications
(72 citation statements)
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“…Twenty articles originated from the United States1718192021222324252627282930313233343536; three from Australia373839; two each from the United Kingdom,4041 Taiwan,4243 and Italy4445; and one each from Canada,46 Spain,47 Germany,48 New Zealand,49 Norway,50 and India 51. They were published between 1968 and 2017, with 15 (43%) published since the last systematic review on this topic in 2009 171819204042434445464748495051. The mean number of participants included in the derivation populations of indices developed after 2009 was 356 906, compared with 75 491 before 2009.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Twenty articles originated from the United States1718192021222324252627282930313233343536; three from Australia373839; two each from the United Kingdom,4041 Taiwan,4243 and Italy4445; and one each from Canada,46 Spain,47 Germany,48 New Zealand,49 Norway,50 and India 51. They were published between 1968 and 2017, with 15 (43%) published since the last systematic review on this topic in 2009 171819204042434445464748495051. The mean number of participants included in the derivation populations of indices developed after 2009 was 356 906, compared with 75 491 before 2009.…”
Section: Resultsmentioning
confidence: 99%
“…The mean number of participants included in the derivation populations of indices developed after 2009 was 356 906, compared with 75 491 before 2009. The newer indices primarily required access to medical records in 11 (73%) cases,1819204042434445474849 and the remainder (4, 27%) self-report17465051; 10 (50%) indices before 2009 primarily used medical records21232629323334353639 and 10 (50%) used self-report 22242527283031373841…”
Section: Resultsmentioning
confidence: 99%
“…The RxRiskV Index was improved for our study to include updated ATC codes for medications licensed in Italy currently and adding the pertaining ICD-9 CM code for each condition. These amendments were made according to previously published works [22][23][24][25][26][27][28][29]. Individuals were classified as having one of the conditions listed if they received at least ≥2 consecutive dispensations of a drug for treatment of a specific class of disease and/or one hospital discharge with the diagnoses coded with the specific ICD-9-CM (S2 Table).…”
Section: Identifying Clinical Predictors Of Sars-cov-2 Infectionmentioning
confidence: 99%
“…Categorization was made by assigning increasing values of 1, 2, 3 and 4 to 0, 1-4, 5-9 and ≥10 drugs (comedication score) and 1, 2, 3 and 4 to 0, 1-2 and ≥3 comorbidities (comorbidity score). In addition, cases and controls were categorized according to the Multisource Comorbidity Score (MCS), a new index of patients' clinical status derived from inpatients diagnostic information and outpatient drug prescriptions provided by the regional Italian data and validated for outcome prediction [22,33]. To simplify comparisons, the original five categories of worsening clinical profile (0, 1, 2, 3 and 4) as defined by MCS, were reduced to milder (MCS=0), middle (1MCS3) and severe (MCS≥4) categories.…”
Section: Comparing Specific and Unspecific Predictors Of Sars-cov-2 Imentioning
confidence: 99%
“…Baseline covariates included age, sex, year of mCRC diagnosis and surgery in the timespan between the dates of colorectal cancer diagnosis and treatment start. In addition, the so-called Multisource Comorbidity Score (MCS), a simple score recently developed and validated in Italy [15], was used for assessing the general clinical profile of each cohort member. In the current study, the weights of the conditions that contribute to the score were recalculated by considering the cohort of cancer patients, rather than the general population as in the original version of the MCS [16].…”
Section: Covariatesmentioning
confidence: 99%