Marjo Okkonen
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Marjo Okkonen has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- Aki Samuli Havulinna
University of Turku, Turku, Finland
3 shared publications - Olavi Ukkola
Oulu University Hospital, and Research Unit of Biomedicine and Internal Medicine, Faculty of Medicine, Medical Research Center Oulu, University of Oulu, Oulu, Finland
3 shared publications - Veikko Salomaa
University of Turku, Department of Internal Medicine
3 shared publications Heikki Huikuri
Research Unit of Internal Medicine, University of Oulu
2 shared publicationsJuha Mustonen
North Karelia Central Hospital
2 shared publications- Kari Eino Juhani Airaksinen
Turku University Hospital and University of Turku
2 shared publications
Latest Publications
- Open Access
- 1 January 2021
- Published by Taylor & Francis in Annals of Medicine
- Vol. 53 (1) , 817-823
Risk factors for major adverse cardiovascular events after the first acute coronary syndrome
To evaluate risk factors for major adverse cardiac event (MACE) after the first acute coronary syndrome (ACS) and to examine the prevalence of risk factors in post-ACS patients.We used Finnish popu...
- 1 January 2021
- Published by Taylor & Francis in Annals of Medicine
- Vol. 53 (1) , 817-823
Open AccessRisk factors for major adverse cardiovascular events after the first acute coronary syndrome
To evaluate risk factors for major adverse cardiac event (MACE) after the first acute coronary syndrome (ACS) and to examine the prevalence of risk factors in post-ACS patients.We used Finnish popu...
- 29 June 2020
- Published by Taylor & Francis in Scandinavian Cardiovascular Journal
- Vol. 54 (5) , 338
Answer to Dr. Sabours letter about our article ‘the validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland’
(2020). Answer to Dr. Sabours letter about our article ‘the validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland’. Scandinavian Cardiovascular Journal. Ahead of Print.
- 29 June 2020
- Published by Taylor & Francis in Scandinavian Cardiovascular Journal
- Vol. 54 (5) , 338
Answer to Dr. Sabours letter about our article ‘the validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland’
(2020). Answer to Dr. Sabours letter about our article ‘the validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland’. Scandinavian Cardiovascular Journal. Ahead of Print.
- 8 November 2019
- Published by Taylor & Francis in Scandinavian Cardiovascular Journal
- Vol. 54 (2) , 108-114
The validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland
Objectives. To examine the validity of ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) diagnoses in Finnish nation-wide hospital discharge register (HDR). Design. In the first stage of the study, we sampled 180 patients treated in 1996–2012 for MI in three different hospitals, Oulu university hospital, Turku university hospital and North Karelia Central hospital, 60 patients in each hospital. A cardiology resident classified the patients on the basis of ECG finding into following categories: NSTEMI, STEMI or not classifiable myocardial infarction (NCMI). In the second stage of the study, we sampled altogether 270 additional patients i.e. 90 patients per hospital. Patients were treated between 2012-2014 for STEMI (n = 3 × 30), NSTEMI (n = 3 × 30), and NCMI (n = 3 × 30). The ECGs of these patients were independently evaluated by the cardiology resident and a senior cardiologist and compared with the HDR diagnosis. Results. In the first stage of the study, the agreement between the ECG coding of the cardiology resident and the HDR diagnoses was poor (Cohen’s kappa coefficient 0.38 (95% CI 0.10–0.32). In the second stage, the agreement remained at the same poor level (Cohen’s kappa = 0.22 (95% CI 0.11–0.03)). The agreement between the cardiology resident and the senior cardiologist was, however, good (Cohen’s kappa = 0.75 (95% CI 0.65–0.85)). Conclusions. Our results show that the division of MI diagnoses to STEMI and NSTEMI is not reliable in the Finnish HDR. These diagnoses should not be used as outcomes in scientific research without additional verification from the original ECGs.
- 8 November 2019
- Published by Taylor & Francis in Scandinavian Cardiovascular Journal
- Vol. 54 (2) , 108-114
The validity of hospital discharge register data on non-ST-elevation and ST-elevation myocardial infarction in Finland
Objectives. To examine the validity of ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) diagnoses in Finnish nation-wide hospital discharge register (HDR). Design. In the first stage of the study, we sampled 180 patients treated in 1996–2012 for MI in three different hospitals, Oulu university hospital, Turku university hospital and North Karelia Central hospital, 60 patients in each hospital. A cardiology resident classified the patients on the basis of ECG finding into following categories: NSTEMI, STEMI or not classifiable myocardial infarction (NCMI). In the second stage of the study, we sampled altogether 270 additional patients i.e. 90 patients per hospital. Patients were treated between 2012-2014 for STEMI (n = 3 × 30), NSTEMI (n = 3 × 30), and NCMI (n = 3 × 30). The ECGs of these patients were independently evaluated by the cardiology resident and a senior cardiologist and compared with the HDR diagnosis. Results. In the first stage of the study, the agreement between the ECG coding of the cardiology resident and the HDR diagnoses was poor (Cohen’s kappa coefficient 0.38 (95% CI 0.10–0.32). In the second stage, the agreement remained at the same poor level (Cohen’s kappa = 0.22 (95% CI 0.11–0.03)). The agreement between the cardiology resident and the senior cardiologist was, however, good (Cohen’s kappa = 0.75 (95% CI 0.65–0.85)). Conclusions. Our results show that the division of MI diagnoses to STEMI and NSTEMI is not reliable in the Finnish HDR. These diagnoses should not be used as outcomes in scientific research without additional verification from the original ECGs.