"Vaajala, Matias" - Selaus tekijän mukaan TUNICRIS-julkaisut
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Adolescence risk factors for meniscus and ligamentous knee injuries in adulthood: A longitudinal study
Vaajala, Matias; Teuho, Alisa; Liukkonen, Rasmus; Ponkilainen, Ville; Rimpelä, Arja; Koivusilta, Leena K.; Mattila, Ville M. (04 / 2025)
articlePurpose: Our aim is to investigate the influence of adolescent health-related behaviours on the occurrence of meniscus and ligament injuries in a large cohort of Finnish adolescents with an average 27-year follow-up. ... -
Adolescent health behaviors, family socioeconomic status and health as risk factors for tendon ruptures in adulthood: a longitudinal study
Teuho, Alisa; Vaajala, Matias; Ponkilainen, Ville; Koivusilta, Leena; Rimpelä, Arja; Mattila, Ville M. (2025)
articleIntroductionThe incidence of tendon ruptures has increased in recent years highlighting the need of better understanding their causes and prevention strategies. This study aims to investigate the influence of adolescent ... -
Association between adolescent lifestyle factors and high-energy traumas in early adulthood: A longitudinal study
Vaajala, Matias; Teuho, Alisa; Liukkonen, Rasmus; Ponkilainen, Ville; Rimpelä, Arja; Koivusilta, Leena K.; Mattila, Ville M. (12 / 2024)
articleIntroduction: Longitudinal studies investigating lifestyle factors as risk factors for high-energy traumas from adolescence to adulthood are lacking. The aim of this study was to investigate the influence of 14 to 18-year ... -
The association between interpregnancy interval and gestational diabetes mellitus: A nationwide register-based study in Finland
Vaajala, Matias; Liukkonen, Rasmus; Tarkiainen, Jeremias; Mattila, Ville M.; Kuitunen, Ilari (07 / 2024)
articleObjective: Previous results on the association between interpregnancy interval (IPI) and gestational diabetes mellitus (GDM) have been contradictory. Hence, the aim of this study was to examine the association between IPI ... -
The Association Between Pregnancy Complications and Subsequent Interpregnancy Interval: a Nationwide Register-Based Quantile Logistic Regression Analysis
Vaajala, Matias; Tarkiainen, Jeremias; Mattila, Ville M.; Kuitunen, Ilari (2023)
articleThere is a limited number of studies examining the influence of birth complications on the length of the subsequent interpregnancy interval (IPI). This study aimed to study the association between different pregnancy ... -
Birth rate after major trauma in fertile-aged women: a nationwide population-based cohort study in Finland
Vaajala, Matias; Kuitunen, Ilari; Nyrhi, Lauri; Ponkilainen, Ville; Kekki, Maiju; Huttunen, Tuomas T.; Mattila, Ville M. (24.03.2022)
article<p>BACKGROUND: To date, only a few small studies have assessed the effects of major orthopedic traumas on the subsequent birth rate in fertile-aged woman. We assessed the incidences of traumatic brain injury (TBI) ... -
Birth rate among women with fear of childbirth: a nationwide register-based cohort study in Finland
Vaajala, Matias; Liukkonen, Rasmus; Ponkilainen, Ville; Mattila, Ville M.; Kekki, Maiju; Kuitunen, Ilari (03 / 2023)
articlePURPOSE: The association between fear of childbirth (FOC) and subsequent birth rate is not well studied. The aim of this study is to evaluate the birth rate, and risk for second pregnancy ending in delivery among women ... -
Delivery mode and fetal outcome in attempted vaginal deliveries after previous cesarean section: a nationwide register-based cohort study in Finland
Vaajala, Matias; Liukkonen, Rasmus; Ponkilainen, Ville; Kekki, Maiju; Mattila, Ville M.; Kuitunen, Ilari (2023)
article<p>Purpose: Even though the risks and advantages of repeat Cesarean sections (CSs) and vaginal births after cesarean section (VBACs) are well studied, there is a scarcity of information on the effects of previous CS ... -
Delivery mode and subsequent birth rate: A nationwide register-based analysis in Finland
Vaajala, Matias; Liukkonen, Rasmus; Mattila, Ville M.; Kekki, Maiju; Kuitunen, Ilari (2024)
articleObjective: The study aimed to calculate the subsequent birth rate for different delivery modes, comparing them with spontaneous vaginal deliveries, using a comprehensive nationwide high-quality registry. Methods: Data from ... -
Differences in Injury Incidence Between Player Positions Across All Rugby Formats: A Systematic Review and Meta-Analysis
Vaajala, Matias; Laaksonen, Juho; Liukkonen, Rasmus; Pakarinen, Oskari; Kuitunen, Ilari (07 / 2025)
reviewarticleRugby is a high-intensity contact sport with a high incidence of injuries. The aim of this systematic review and meta-analysis was to compare the injury incidences between forwards and backs in all rugby formats (Rugby ... -
The effect of gestational diabetes on the fracture risk after pregnancy: a nationwide register-based study
Vaajala, Matias; Liukkonen, Rasmus; Kuitunen, Ilari; Ponkilainen, Ville; Mattila, Ville M. (2022)
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Effect of major trauma on the expected number of births in Finnish women: A nationwide population-based public data and register analysis
Vaajala, Matias; Kuitunen, Ilari; Mattila, Ville M.; Yazer, Mark H. (2024)
articleBackground: The effect of major trauma on subsequent fertility is poorly described. If women have lower fertility after trauma, they would have a lower risk of anti-D mediated hemolytic disease of the fetus and newborn in ... -
Epidemiology of rugby injuries: a systematic review and meta-analysis
Laaksonen, Juho; Vaajala, Matias; Pakarinen, Oskari; Liukkonen, Rasmus; Kuitunen, Ilari (03.01.2026)
reviewarticleObjective To report pooled injury incidence rates stratified by rugby format, level of play, injury outcome and sex, and to identify the most common injury sites and types. Design Systematic review and meta-analysis. Data ... -
Evaluating the Performance of ChatGPT-4o in Risk of Bias Assessments
Kuitunen, Ilari; Ponkilainen, Ville T.; Liukkonen, Rasmus; Nyrhi, Lauri; Pakarinen, Oskari; Vaajala, Matias; Uimonen, Mikko M. (2024)
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Factors associated with fear of childbirth in a subsequent pregnancy: a nationwide case–control analysis in Finland
Vaajala, Matias; Liukkonen, Rasmus; Kuitunen, Ilari; Ponkilainen, Ville; Mattila, Ville M.; Kekki, Maiju (01 / 2023)
articleBackground: Fear of childbirth can develop due to the concerns or adverse maternal or foetal outcomes experienced in a previous pregnancy. The aim of this study was to examine the main risk factors associated with the ... -
Fear of Childbirth After Major Orthopedic Traumas: A Nationwide Multi-Register Analysis
Vaajala, Matias; Liukkonen, Rasmus; Kuitunen, Ilari; Ponkilainen, Ville; Mattila, Ville M; Kekki, Maiju (2024)
articleBackground: The aim of this study was to evaluate the association between previous major traumas and the prevalence of fear of childbirth (FOC) and the subsequent effects of FOC on the intended mode of delivery. Methods: ... -
Fear of childbirth and use of labor analgesia: A nationwide register-based analysis in Finland
Vaajala, Matias; Kekki, Maiju; Mattila, Ville M.; Kuitunen, Ilari (04 / 2023)
articleObjective: To calculate the rates of labor analgesia among women with fear of childbirth (FOC) in multiparous and nulliparous women, because FOC might be associated with higher rates of labor analgesia. Methods: In this ... -
Fear of childbirth prolongs interpregnancy interval: A nationwide register-based quantile logistic regression analysis
Vaajala, Matias; Mattila, Ville M.; Kuitunen, Ilari (03 / 2024)
articleIntroduction: It is not well studied how fear of childbirth (FOC) influences the interpregnancy interval (IPI). Thus, we aimed to analyze the association between FOC and the length of the IPI. Methods: All women having ... -
Finnish Youth Footballers' Perceptions on Artificial Turf: A Survey Research
Immonen, Ville; Vaajala, Matias; Pakarinen, Oskari; Nyrhi, Lauri; Kuitunen, Ilari (12 / 2025)
articleBackground and Aims: There is no evidence of increased overall injury risk on modern artificial surfaces in football. However, football players have generally considered artificial surface to increase injury risk compared ... -
Health behavior, health, and socioeconomic background in adolescence as risk factors for traumatic brain injuries: A longitudinal study
Teuho, Alisa; Vaajala, Matias; Ponkilainen, Ville; Koivusilta, Leena; Rimpelä, Arja; Mattila, Ville M. (06 / 2025)
articleIntroduction: Traumatic brain injuries (TBI) are a considerable health burden on adolescents and young adults. This study aims to assess the influence of health compromising behavior, poor perceived health, poor school ...






