Naturliga antal förbättrar förmågan att tolka testresultat
von Schreeb, Sebastian ; Merlo, Juan LU
and Psouni, Elia
LU
(2018)
In Läkartidningen
115.
p.1-4
- Abstract
The ability to draw statistical inferences from test results may be generally limited among physicians. A new way of presenting statistics, called natural frequencies, has been shown to improve this ability. The current study is the first to investigate this effect in Sweden, involving senior medical students. An intra-individual cross-over design was used in which participants answered a statistical inference task presented with natural frequencies and another with percentages, which has been the customary format. A total of 74% made a correct inference on the natural frequencies task, as compared to 54% on the percentages task, with an odds ratio of 3.2, p = 0.002, 95% CI 1.52-6.81. The findings indicate that the effect of using... (More)
The ability to draw statistical inferences from test results may be generally limited among physicians. A new way of presenting statistics, called natural frequencies, has been shown to improve this ability. The current study is the first to investigate this effect in Sweden, involving senior medical students. An intra-individual cross-over design was used in which participants answered a statistical inference task presented with natural frequencies and another with percentages, which has been the customary format. A total of 74% made a correct inference on the natural frequencies task, as compared to 54% on the percentages task, with an odds ratio of 3.2, p = 0.002, 95% CI 1.52-6.81. The findings indicate that the effect of using natural frequencies arises also in a Swedish context.
(Less)- Abstract (Swedish)
- Läkares förmåga att tolka screeningresultat har visats vara bristande.
Naturliga antal är ett format att presentera statistik på som kan underlätta den förmågan.Den här studien är först i Sverige att undersöka om naturliga antal förbättrar läkarstudenters förmåga att finna ett testresultats prediktiva värde.
74 procent lyckades med uppgiften när naturliga antal användes, jämfört med 54 procent då gängse format användes (oddskvot 3,2; P = 0,002; 95 procents konfidensintervall 1,52–6,81).Resultaten indikerar att effekten av att använda naturliga antal kvarstår i en svensk kontext.
- author
- von Schreeb, Sebastian
; Merlo, Juan
LU
and Psouni, Elia
LU
- organization
- alternative title
- Natural frequencies improved diagnostic inference among medical students i Sweden
- publishing date
- 2018-03-16
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Surveys and Questionnaires, Data Interpretation, Statistical, Predictive Value of Tests, Probability, Students, Medical, villkorade sannolikheter
- in
- Läkartidningen
- volume
- 115
- pages
- 1 - 4
- publisher
- Swedish Medical Association
- external identifiers
-
- scopus:85044342826
- pmid:29558006
- ISSN
- 0023-7205
- language
- Swedish
- LU publication?
- yes
- id
- 806fac16-402c-4efb-bc2f-9af867d8ff5f
- alternative location
- http://www.lakartidningen.se/Klinik-och-vetenskap/Originalstudie/2018/03/Naturliga-antal-forbattrar-formagan-att-tolka-testresultat/
- date added to LUP
- 2018-03-26 16:34:40
- date last changed
- 2024-03-01 16:20:24
@article{806fac16-402c-4efb-bc2f-9af867d8ff5f,
abstract = {{<p>The ability to draw statistical inferences from test results may be generally limited among physicians. A new way of presenting statistics, called natural frequencies, has been shown to improve this ability. The current study is the first to investigate this effect in Sweden, involving senior medical students. An intra-individual cross-over design was used in which participants answered a statistical inference task presented with natural frequencies and another with percentages, which has been the customary format. A total of 74% made a correct inference on the natural frequencies task, as compared to 54% on the percentages task, with an odds ratio of 3.2, p = 0.002, 95% CI 1.52-6.81. The findings indicate that the effect of using natural frequencies arises also in a Swedish context.</p>}},
author = {{von Schreeb, Sebastian and Merlo, Juan and Psouni, Elia}},
issn = {{0023-7205}},
keywords = {{Surveys and Questionnaires; Data Interpretation, Statistical; Predictive Value of Tests; Probability; Students, Medical; villkorade sannolikheter}},
language = {{swe}},
month = {{03}},
pages = {{1--4}},
publisher = {{Swedish Medical Association}},
series = {{Läkartidningen}},
title = {{Naturliga antal förbättrar förmågan att tolka testresultat}},
url = {{http://www.lakartidningen.se/Klinik-och-vetenskap/Originalstudie/2018/03/Naturliga-antal-forbattrar-formagan-att-tolka-testresultat/}},
volume = {{115}},
year = {{2018}},
}