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The PROBE (Patient Reported Outcomes Burdens and Experience) questionnaire was found to be a valid instrument to evaluate health status in patients with hemophilia in an cross‐cultural context, according to an international study.

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“This study [aimed] to investigate the variation in the PROBE questionnaire–driven measurements across four broad geographical regions,” wrote Chatree Chai‐Adisaksopha, MD, of McMaster University in Hamilton, Ontario, and his colleagues. The results of the study were published in Haemophilia.

The researchers analyzed data from 862 study participants who resided in various geographical regions, including North America, South America, Europe, and the Western Pacific. The majority of participants were male and had greater than 12 years of education.

The team assessed common characteristics of participants through collection of demographic data, including age, gender, years of education, among others. With respect to hemophilia, they evaluated patient‐reported outcome measures across these four regions.

“Outcome measurement in haemophilia has been developed to capture clinically relevant outcomes like bleeding rates, pharmacokinetics, joint pain, joint function scores, radiologic changes and mortality rates,” the researchers wrote.

After analysis, Dr. Chai‐Adisaksopha and his colleagues found that the PROBE questionnaire showed low variability when used on a multinational, cross‐cultural level. In particular, limited variation was found with respect to years of education and geographical region in all subcategories, with the exception of mobility score. In contrast, diagnosis and age had the highest levels of variation.

Region contributed 0.26% of variance in the PROBE score. Similarly, education level contributed 0.34% of the variance. However, age contributed 3.42% and diagnosis contributed 22.42% of the variance in the PROBE score.

The authors acknowledged a key limitation of the study was the inability to include all geographical regions, largely due to an inadequate number of participants in certain areas, such as Africa.

“Despite being used in disparate groups of patients, in 14 countries, in four regions and in 20 languages, the tool produced comparable results, suggesting it can be reliably used across these groups,” the researchers wrote.

The study was funded by Baxalta, Bayer, Bioverativ, CSL Behring, Novo Nordisk, Roche, and Sobi, with additional support from the U.S. National Hemophilia Foundation. Co-author Mark W. Skinner is the principal investigator and no other investigators reported relevant conflicts of interest.

SOURCE: Chai-Adisaksopha C et al. Haemophilia. 2019 Mar 12. doi: 10.1111/hae.13703 .

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The PROBE (Patient Reported Outcomes Burdens and Experience) questionnaire was found to be a valid instrument to evaluate health status in patients with hemophilia in an cross‐cultural context, according to an international study.

PeopleImages/gettyimages

“This study [aimed] to investigate the variation in the PROBE questionnaire–driven measurements across four broad geographical regions,” wrote Chatree Chai‐Adisaksopha, MD, of McMaster University in Hamilton, Ontario, and his colleagues. The results of the study were published in Haemophilia.

The researchers analyzed data from 862 study participants who resided in various geographical regions, including North America, South America, Europe, and the Western Pacific. The majority of participants were male and had greater than 12 years of education.

The team assessed common characteristics of participants through collection of demographic data, including age, gender, years of education, among others. With respect to hemophilia, they evaluated patient‐reported outcome measures across these four regions.

“Outcome measurement in haemophilia has been developed to capture clinically relevant outcomes like bleeding rates, pharmacokinetics, joint pain, joint function scores, radiologic changes and mortality rates,” the researchers wrote.

After analysis, Dr. Chai‐Adisaksopha and his colleagues found that the PROBE questionnaire showed low variability when used on a multinational, cross‐cultural level. In particular, limited variation was found with respect to years of education and geographical region in all subcategories, with the exception of mobility score. In contrast, diagnosis and age had the highest levels of variation.

Region contributed 0.26% of variance in the PROBE score. Similarly, education level contributed 0.34% of the variance. However, age contributed 3.42% and diagnosis contributed 22.42% of the variance in the PROBE score.

The authors acknowledged a key limitation of the study was the inability to include all geographical regions, largely due to an inadequate number of participants in certain areas, such as Africa.

“Despite being used in disparate groups of patients, in 14 countries, in four regions and in 20 languages, the tool produced comparable results, suggesting it can be reliably used across these groups,” the researchers wrote.

The study was funded by Baxalta, Bayer, Bioverativ, CSL Behring, Novo Nordisk, Roche, and Sobi, with additional support from the U.S. National Hemophilia Foundation. Co-author Mark W. Skinner is the principal investigator and no other investigators reported relevant conflicts of interest.

SOURCE: Chai-Adisaksopha C et al. Haemophilia. 2019 Mar 12. doi: 10.1111/hae.13703 .

The PROBE (Patient Reported Outcomes Burdens and Experience) questionnaire was found to be a valid instrument to evaluate health status in patients with hemophilia in an cross‐cultural context, according to an international study.

PeopleImages/gettyimages

“This study [aimed] to investigate the variation in the PROBE questionnaire–driven measurements across four broad geographical regions,” wrote Chatree Chai‐Adisaksopha, MD, of McMaster University in Hamilton, Ontario, and his colleagues. The results of the study were published in Haemophilia.

The researchers analyzed data from 862 study participants who resided in various geographical regions, including North America, South America, Europe, and the Western Pacific. The majority of participants were male and had greater than 12 years of education.

The team assessed common characteristics of participants through collection of demographic data, including age, gender, years of education, among others. With respect to hemophilia, they evaluated patient‐reported outcome measures across these four regions.

“Outcome measurement in haemophilia has been developed to capture clinically relevant outcomes like bleeding rates, pharmacokinetics, joint pain, joint function scores, radiologic changes and mortality rates,” the researchers wrote.

After analysis, Dr. Chai‐Adisaksopha and his colleagues found that the PROBE questionnaire showed low variability when used on a multinational, cross‐cultural level. In particular, limited variation was found with respect to years of education and geographical region in all subcategories, with the exception of mobility score. In contrast, diagnosis and age had the highest levels of variation.

Region contributed 0.26% of variance in the PROBE score. Similarly, education level contributed 0.34% of the variance. However, age contributed 3.42% and diagnosis contributed 22.42% of the variance in the PROBE score.

The authors acknowledged a key limitation of the study was the inability to include all geographical regions, largely due to an inadequate number of participants in certain areas, such as Africa.

“Despite being used in disparate groups of patients, in 14 countries, in four regions and in 20 languages, the tool produced comparable results, suggesting it can be reliably used across these groups,” the researchers wrote.

The study was funded by Baxalta, Bayer, Bioverativ, CSL Behring, Novo Nordisk, Roche, and Sobi, with additional support from the U.S. National Hemophilia Foundation. Co-author Mark W. Skinner is the principal investigator and no other investigators reported relevant conflicts of interest.

SOURCE: Chai-Adisaksopha C et al. Haemophilia. 2019 Mar 12. doi: 10.1111/hae.13703 .

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