J
Juan R. Ordoñana
Researcher at University of Murcia
Publications - 108
Citations - 2725
Juan R. Ordoñana is an academic researcher from University of Murcia. The author has contributed to research in topics: Twin study & Population. The author has an hindex of 24, co-authored 102 publications receiving 2082 citations. Previous affiliations of Juan R. Ordoñana include King's College London.
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Journal ArticleDOI
Symptoms of depression as a prognostic factor for low back pain: a systematic review
Marina B. Pinheiro,Manuela L. Ferreira,Manuela L. Ferreira,Kathryn M. Refshauge,Christopher G. Maher,Juan R. Ordoñana,Tude B. Andrade,Alexandros Tsathas,Paulo H. Ferreira +8 more
TL;DR: Although a definitive answer on the effect of depression on the course ofLow back pain is not available, the findings of this systematic review suggest that depression might have an adverse effect on the prognosis of low back pain.
Journal ArticleDOI
Age and gender effects on the prevalence of poor sleep quality in the adult population.
Juan J. Madrid-Valero,José M. Martínez-Selva,Bruno Ribeiro Do Couto,Juan F. Sánchez-Romera,Juan R. Ordoñana +4 more
TL;DR: The prevalence of poor sleep quality is high among adults, especially women, and there is a direct relationship between age and deterioration in the quality of sleep.
Journal ArticleDOI
The relationship between obesity, low back pain, and lumbar disc degeneration when genetics and the environment are considered: a systematic review of twin studies.
Amabile B. Dario,Manuela L. Ferreira,Kathryn M. Refshauge,Thais de Sousa Lima,Juan R. Ordoñana,Paulo H. Ferreira +5 more
TL;DR: Findings from this review suggest that genetics and early environment are possible mechanisms underlying the relationship between obesity and LBP; however, a direct causal link between these conditions appears to be weak.
Journal ArticleDOI
Symptoms of Depression and Risk of New Episodes of Low Back Pain: A Systematic Review and Meta‐Analysis
Marina B. Pinheiro,Manuela L. Ferreira,Kathryn M. Refshauge,Juan R. Ordoñana,Gustavo C Machado,Lucas R. Prado,Christopher G. Maher,Paulo H. Ferreira +7 more
TL;DR: To investigate the contribution of symptoms of depression to future episodes of low back pain (LBP), a large number of patients with a history of depression and major depressive disorders are surveyed.
Journal ArticleDOI
Genetic and environmental variation in educational attainment: an individual-based analysis of 28 twin cohorts.
Karri Silventoinen,Karri Silventoinen,Aline Jelenkovic,Aline Jelenkovic,Reijo Sund,Reijo Sund,Antti Latvala,Chika Honda,Fujio Inui,Fujio Inui,Rie Tomizawa,Mikio Watanabe,Norio Sakai,Esther Rebato,Andreas Busjahn,Jessica Tyler,John L. Hopper,John L. Hopper,Juan R. Ordoñana,Juan F. Sánchez-Romera,Lucía Colodro-Conde,Lucía Colodro-Conde,Lucas Calais-Ferreira,Vinícius Cunha Oliveira,Paulo H. Ferreira,Emanuela Medda,Lorenza Nisticò,Virgilia Toccaceli,Catherine Derom,Catherine Derom,Robert F. Vlietinck,Ruth J. F. Loos,Sisira Siribaddana,Matthew Hotopf,Matthew Hotopf,Athula Sumathipala,Fruhling Rijsdijk,Glen E. Duncan,Dedra Buchwald,Per Tynelius,Finn Rasmussen,Qihua Tan,Dongfeng Zhang,Zengchang Pang,Patrik K. E. Magnusson,Nancy L. Pedersen,Anna K. Dahl Aslan,Anna K. Dahl Aslan,Amie E. Hwang,Thomas M. Mack,Robert F. Krueger,Matt McGue,Shandell Pahlen,Ingunn Brandt,Thomas Sevenius Nilsen,Jennifer R. Harris,Nicholas G. Martin,Sarah E. Medland,Grant W. Montgomery,Gonneke Willemsen,Meike Bartels,Catharina E. M. van Beijsterveldt,Carol E. Franz,William S. Kremen,William S. Kremen,Michael J. Lyons,Judy L. Silberg,Hermine H. Maes,Christian Kandler,Tracy L. Nelson,Keith E. Whitfield,Robin P. Corley,Brooke M. Huibregtse,Margaret Gatz,Margaret Gatz,David A. Butler,Adam Domonkos Tarnoki,David Laszlo Tarnoki,Hang A Park,Hang A Park,Jooyeon Lee,Soo Ji Lee,Joohon Sung,Yoshie Yokoyama,Thorkild I. A. Sørensen,Dorret I. Boomsma,Jaakko Kaprio +86 more
TL;DR: Both genetic and environmental factors shared by co-twins have an important influence on individual differences in educational attainment, and the effect of genetic factors on educational attainment has decreased from the cohorts born before to those born after the 1950s.