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R. Ojala · SciRah

Researcher profile · Semantic Scholar

R. Ojala

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R. Ojala — researcher profile on SciRah

h-index: 15
Works: 31
Citations: 708

Most-cited papers

Cerebral Palsy Among Children Born Moderately and Late Preterm
Mikko Hirvonen, R. Ojala, P. Korhonen, P. Haataja +4 more
2014Pediatrics118 citations
Semantic Scholar
Visual and Hearing Impairments After Preterm Birth
Mikko Hirvonen, R. Ojala, P. Korhonen, P. Haataja +4 more
2018Pediatrics79 citations Open access
Semantic Scholar
Short versus prolonged indomethacin therapy for patent ductus arteriosus in preterm infants.
O. Tammela, R. Ojala, T. Iivainen, V. Lautamatti +4 more
1999Jornal de Pediatria72 citations
Semantic Scholar
Asthma and atopic dermatitis in children born moderately and late preterm
P. Haataja, P. Korhonen, R. Ojala, Mikko Hirvonen +4 more
2016European Journal of Pediatrics54 citations
Semantic Scholar
Hospital admissions for lower respiratory tract infections in children born moderately/late preterm
P. Haataja, P. Korhonen, R. Ojala, Mikko Hirvonen +4 more
2018Pediatric Pulmonology46 citations Open access
Semantic Scholar
Perinatal indomethacin treatment and neonatal complications in preterm infants
R. Ojala, S. Ikonen, O. Tammela
2000European Journal of Pediatrics41 citations
Semantic Scholar
The incidence and risk factors of epilepsy in children born preterm: A nationwide register study.
Mikko Hirvonen, R. Ojala, P. Korhonen, P. Haataja +4 more
2017Epilepsy Research40 citations
Semantic Scholar
Out‐of‐hospital deliveries have risen involving greater neonatal morbidity
Katja Ovaskainen, R. Ojala, M. Gissler, T. Luukkaala +1 more
2015Acta paediatrica40 citations
Semantic Scholar
Intellectual disability in children aged less than seven years born moderately and late preterm compared with very preterm and term‐born children – a nationwide birth cohort study
Mikko Hirvonen, R. Ojala, P. Korhonen, P. Haataja +5 more
2017Journal of Intellectual Disability Research28 citations
Semantic Scholar
Renal follow up of premature infants with and without perinatal indomethacin exposure
R. Ojala, M. Ala-Houhala, S. Ahonen, A. Harmoinen +3 more
2001Archives of Disease in Childhood: Fetal and Neonatal Edition28 citations Open access
Semantic Scholar
Calcium supplementation during pregnancy and maternal and offspring bone health: a systematic review and meta‐analysis
K. Tihtonen, P. Korhonen, J. Isojärvi, R. Ojala +3 more
2021Annals of the New York Academy of Sciences23 citations Open access
Semantic Scholar
Asthma and atopic dermatitis after early‐, late‐, and post‐term birth
P. Korhonen, P. Haataja, R. Ojala, Mikko Hirvonen +6 more
2018Pediatric Pulmonology20 citations
Semantic Scholar
Unplanned out‐of‐hospital deliveries in Finland: A national register study on incidence, characteristics and maternal and infant outcomes
Katja Ovaskainen, R. Ojala, K. Tihtonen, M. Gissler +2 more
2020Acta Obstetricia et Gynecologica Scandinavica19 citations Open access
Semantic Scholar
Predictors of delayed first voiding in newborn
Tuomo Vuohelainen, R. Ojala, A. Virtanen, Päivi Holm +1 more
2008Acta paediatrica17 citations
Semantic Scholar
Calcium supplementation during pregnancy and long‐term offspring outcome: a systematic literature review and meta‐analysis
P. Korhonen, K. Tihtonen, J. Isojärvi, R. Ojala +3 more
2022Annals of the New York Academy of Sciences15 citations Open access
Semantic Scholar
Decreased Free Water Clearance Is Associated with Worse Respiratory Outcomes in Premature Infants
Tuomo Vuohelainen, R. Ojala, A. Virtanen, P. Korhonen +3 more
2011PLoS ONE12 citations Open access
Semantic Scholar
Predictors of AVP and TSH Levels and the Timing of First Voiding in the Newborn
Tuomo Vuohelainen, R. Ojala, A. Virtanen, J. Laatta +3 more
2007Pediatric Research12 citations Open access
Semantic Scholar
Tubular proteinuria in pre-term and full-term infants
R. Ojala, M. Ala-Houhala, A. Harmoinen, T. Luukkaala +2 more
2006Pediatric nephrology (Berlin, West)11 citations
Semantic Scholar
Gastroesophageal Endoscopic Findings and Gastrointestinal Symptoms in Preterm Neonates With and Without Perinatal Indomethacin Exposure
R. Ojala, T. Ruuska, R. Karikoski, R. Ikonen +1 more
2001Journal of Pediatric Gastroenterology and Nutrition - JPGN10 citations Open access
Semantic Scholar
Hospital admissions for lower respiratory tract infections after early-, late-, and post-term birth.
P. Haataja, P. Korhonen, R. Ojala, Mikko Hirvonen +4 more
2020Paediatric and Perinatal Epidemiology7 citations Open access
Semantic Scholar
Association of early discharge with increased likelihood of hospital readmission in first four weeks for vaginally delivered neonates
Maria Pohjanpää, R. Ojala, T. Luukkaala, M. Gissler +1 more
2022Acta paediatrica6 citations Open access
Semantic Scholar
Tubular proteinuria in pre-term and full-term infants
R. Ojala, M. Ala-Houhala, A. Harmoinen, T. Luukkaala +2 more
2006Pediatric nephrology (Berlin, West)6 citations Open access
Semantic Scholar
Planned home deliveries in Finland, 1996–2013
Katja Ovaskainen, R. Ojala, K. Tihtonen, M. Gissler +2 more
2018Journal of Perinatology3 citations
Semantic Scholar
Is birth out-of-hospital associated with mortality and morbidity by seven years of age?
Katja Ovaskainen, R. Ojala, M. Gissler, T. Luukkaala +1 more
2021PLoS ONE2 citations Open access
Semantic Scholar
First-Year Mortality in Infants Born Moderately Preterm and Late Preterm: A National Register Study
Kati Kallio, R. Ojala, T. Luukkaala, O. Tammela
2026Journal of pediatrics. Clinical practice1 citations Open access
Semantic Scholar
Effects of perinatal indomethacin treatment on preterm infants
R. Ojala
20001 citations
Semantic Scholar
Author response for "Calcium supplementation during pregnancy and long‐term offspring outcome: a systematic literature review and meta‐analysis"
P. Korhonen, Kati Tihtonen, J. Isojärvi, R. Ojala +3 more
20210 citations Open access
Semantic Scholar
431 Predictors of Decreased Fluid Tolerance in Vlbw Infants
Tuomo Vuohelainen, R. Ojala, A. Virtanen, T. Luukkaala +3 more
20100 citations
Semantic Scholar
[Evidence-based methods of medicine in specialization training: a neonatologic problem as an example].
M. Korppi, Mikko Hirvonen, P. Koponen, Marianne Juvonen +9 more
2009Duodecim lääketieteellinen aikakauskirja0 citations
Semantic Scholar
Näyttöön perustuvan lääketieteen menetelmien käyttö erikoistumiskoulutuksessa: esimerkkinä neonatologinen ongelma
Matti Korppi, Mikko Hirvonen, P. Koponen, Marianne Juvonen +9 more
20090 citations
Semantic Scholar
369 Can Obstetric Factors Predict Arginine Vasopressin Release and the Timing of First Voiding in the Newborn Infant?
A. Hietanen, J. Laatta, R. Ojala, O. Tammela
20050 citations
Semantic Scholar

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O. Tammela×29
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O. Tammela — researcher profile on SciRah
T. Luukkaala×18
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T. Luukkaala — researcher profile on SciRah
M. Gissler×13
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Mikko Hirvonen×9
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Katja Ovaskainen×4

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Katja Ovaskainen — researcher profile on SciRah

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Tuomo Vuohelainen — researcher profile on SciRah