User profiles for Chelsea Doktorchik

Chelsea Doktorchik

University of Calgary
Verified email at ucalgary.ca
Cited by 691

[HTML][HTML] Validation of a case definition for depression in administrative data against primary chart data as a reference standard

C Doktorchik, S Patten, C Eastwood, M Peng, G Chen… - BMC psychiatry, 2019 - Springer
Background Because the collection of mental health information through interviews is
expensive and time consuming, interest in using population-based administrative health data to …

Preterm birth and social support during pregnancy: a systematic review and meta‐analysis

E Hetherington, C Doktorchik, SS Premji… - Paediatric and …, 2015 - Wiley Online Library
Background Additional social support is often recommended for women during the prenatal
period to optimise birth outcomes, specifically to avoid preterm birth. Social support is …

Percentage of ingested sodium excreted in 24‐hour urine collections: a systematic review and meta‐analysis

AM Lucko, C Doktorchik, M Woodward… - The Journal of …, 2018 - Wiley Online Library
High dietary sodium is estimated to be the leading dietary risk for death and disability
according to the Global Burden of Disease Study. 1, 2 The health risk associated with dietary …

Impact of the COVID-19 pandemic on hospitalizations for alcoholic hepatitis or cirrhosis in Alberta, Canada

AA Shaheen, K Kong, C Ma, C Doktorchik… - Clinical …, 2022 - Elsevier
Background & Aims Coronavirus disease 2019 (COVID-19) pandemic lockdown and restrictions
had significant disruption to patient care. We aimed to evaluate the impact of COVID-19 …

A qualitative evaluation of clinically coded data quality from health information manager perspectives

C Doktorchik, M Lu, H Quan… - Health Information …, 2020 - journals.sagepub.com
Background: It is essential that clinical documentation and clinical coding be of high quality
for the production of healthcare data. Objective: This study assessed qualitatively the …

[HTML][HTML] Exploring the differences in ICD and hospital morbidity data collection features across countries: an international survey

L Otero Varela, C Doktorchik, N Wiebe, H Quan… - BMC Health Services …, 2021 - Springer
Background The International Classification of Diseases (ICD) is the reference standard for
reporting diseases and health conditions globally. Variations in ICD use and data collection …

[HTML][HTML] Unlocking the potential of electronic health records for health research

…, AG D'Souza, EA Martin, C Doktorchik… - … Journal of Population …, 2020 - ncbi.nlm.nih.gov
Electronic health records (EHRs), originally designed to facilitate health care delivery, are
becoming a valuable data source for health research. EHR systems have two components, …

Patterns of change in anxiety and depression during pregnancy predict preterm birth

C Doktorchik, S Premji, D Slater, T Williamson… - Journal of affective …, 2018 - Elsevier
Background To determine whether changes in anxiety and depression during pregnancy
influence the risk of having a preterm birth (PTB), and whether chronic stress modifies this …

Enhancing ICD-code-based case definition for heart failure using electronic medical record data

…, S Lee, E Martin, AG D'souza, CTA Doktorchik… - Journal of Cardiac …, 2020 - Elsevier
Background Surveillance and outcome studies for heart failure (HF) require accurate identification
of patients with HF. Algorithms based on International Classification of Diseases (ICD) …

[HTML][HTML] Electronic medical record–based case Phenotyping for the Charlson conditions: scoping review

S Lee, C Doktorchik, EA Martin… - JMIR medical …, 2021 - medinform.jmir.org
Background Electronic medical records (EMRs) contain large amounts of rich clinical
information. Developing EMR-based case definitions, also known as EMR phenotyping, is an …