Syuichi Ooki

Summary

Affiliation: Ishikawa Prefectural Nursing University
Country: Japan

Publications

  1. pmc Maternal age and birth defects after the use of assisted reproductive technology in Japan, 2004-2010
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Int J Womens Health 5:65-77. 2013
  2. pmc Fatal child maltreatment associated with multiple births in Japan: nationwide data between July 2003 and March 2011
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1 Gakuendai, Kahoku, Ishikawa, 929 1210, Japan
    Environ Health Prev Med 18:416-21. 2013
  3. doi request reprint Characteristics of fatal child maltreatment associated with multiple births in Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Twin Res Hum Genet 16:743-50. 2013
  4. doi request reprint Twin database of the secondary school attached to the Faculty of Education of the University of Tokyo: lifecourse database of twins
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Twin Res Hum Genet 16:226-30. 2013
  5. doi request reprint Japanese database of families with twins and higher-order multiples
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Twin Res Hum Genet 16:221-5. 2013
  6. ncbi request reprint [Life course genetic epidemiologic study based on longitudinal twin-family data: a new perspective]
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Nihon Eiseigaku Zasshi 66:31-8. 2011
  7. pmc Theoretical model of the relationship between single embryo transfer rate and multiple pregnancy rate in Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1, Gakuendai, Kahoku 929 1210, Japan
    J Pregnancy 2012:620753. 2012
  8. pmc Birth defects in singleton versus multiple ART births in Japan (2004-2008)
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1 Gakuendai, Kahoku, Ishikawa 929 1210, Japan
    J Pregnancy 2011:285706. 2011
  9. pmc Congenital hypothyroidism after assisted reproductive technology in Japan: comparison between multiples and singletons, 2005-2009
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1, Gakuendai, Kahoku, Ishikawa, 929 1210, Japan
    Int J Pediatr Endocrinol 2013:5. 2013
  10. pmc Concordance rates of birth defects after assisted reproductive technology among 17 258 Japanese twin pregnancies: a nationwide survey, 2004-2009
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    J Epidemiol 23:63-9. 2013

Collaborators

Detail Information

Publications27

  1. pmc Maternal age and birth defects after the use of assisted reproductive technology in Japan, 2004-2010
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Int J Womens Health 5:65-77. 2013
    ..Older mothers are becoming more common in Japan. One reason for this is the widespread use of assisted reproductive technology (ART). This study assesses the relationship between maternal age and the risk of birth defects after ART...
  2. pmc Fatal child maltreatment associated with multiple births in Japan: nationwide data between July 2003 and March 2011
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1 Gakuendai, Kahoku, Ishikawa, 929 1210, Japan
    Environ Health Prev Med 18:416-21. 2013
    ..The purpose of the present study is to clarify the impact of multiple births in fatal child maltreatment (child death due to maltreatment)...
  3. doi request reprint Characteristics of fatal child maltreatment associated with multiple births in Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Twin Res Hum Genet 16:743-50. 2013
    ..The penal sentences for fatal child maltreatment might be more lenient for perpetrators of this crime against twins than against singletons...
  4. doi request reprint Twin database of the secondary school attached to the Faculty of Education of the University of Tokyo: lifecourse database of twins
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Twin Res Hum Genet 16:226-30. 2013
    ..Record linkage of these three databases should facilitate several important research projects; for example, the lifecourse genetic epidemiologic studies and verification of so-called developmental origin of health and disease hypothesis...
  5. doi request reprint Japanese database of families with twins and higher-order multiples
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Twin Res Hum Genet 16:221-5. 2013
    ..One of the ultimate aims of this research was to provide evidence-based information on parenting multiples from pregnancy through childhood to families with multiples...
  6. ncbi request reprint [Life course genetic epidemiologic study based on longitudinal twin-family data: a new perspective]
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Japan
    Nihon Eiseigaku Zasshi 66:31-8. 2011
    ..Longitudinal twin-family data are very powerful and useful information in the family-based life course genetic epidemiologic study...
  7. pmc Theoretical model of the relationship between single embryo transfer rate and multiple pregnancy rate in Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1, Gakuendai, Kahoku 929 1210, Japan
    J Pregnancy 2012:620753. 2012
    ..The multiple pregnancy rate seemed to be influenced by the improvement of the total pregnancy rate of ART in the early period and by the MZ twinning after SET in the final period. The estimated MZ twinning rate after SET was around 2%...
  8. pmc Birth defects in singleton versus multiple ART births in Japan (2004-2008)
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1 Gakuendai, Kahoku, Ishikawa 929 1210, Japan
    J Pregnancy 2011:285706. 2011
    ..86). We concluded that the impact of birth defects after ART would be larger in families with multiples compared to families with singletons, since the mean number of children would be larger in the former...
  9. pmc Congenital hypothyroidism after assisted reproductive technology in Japan: comparison between multiples and singletons, 2005-2009
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 1 1, Gakuendai, Kahoku, Ishikawa, 929 1210, Japan
    Int J Pediatr Endocrinol 2013:5. 2013
    ..The relationship between congenital hypothyroidism (CH) and multiple pregnancy has not been fully studied in Japan...
  10. pmc Concordance rates of birth defects after assisted reproductive technology among 17 258 Japanese twin pregnancies: a nationwide survey, 2004-2009
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    J Epidemiol 23:63-9. 2013
    ..Most twins after assisted reproductive technology (ART) are dizygotic. Analysis of dizygotic twin pairs is useful in assessing familial aggregation in the development of birth defects...
  11. ncbi request reprint Effect of maternal age and fertility treatment on the increase in multiple births in Japan: vital statistics, 1974-2009
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    J Epidemiol 21:507-11. 2011
    ..The present study used vital-statistics data to estimate the effect of maternal age and fertility treatment on the number and rate of multiple live births in Japan from 1974 through 2009...
  12. ncbi request reprint Estimation of the contribution of assisted and non-assisted reproductive technology fertility treatments to multiple births during the past 30 years in Japan: 1979-2008
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Twin Res Hum Genet 14:476-83. 2011
    ..Given the medical and social impact of multiple births, it is imperative to construct a hospital-based monitoring system for fertility treatments, specially non-ART fertility treatments and multiple births...
  13. doi request reprint Estimation of the contribution of assisted and non-assisted reproductive technology fertility treatments to multiple births during the past 30 years in Japan: 1979-2008
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    Twin Res Hum Genet 14:476-83. 2011
    ..Given the medical and social impact of multiple births, it is imperative to construct a hospital-based monitoring system for fertility treatments, specially non-ART fertility treatments and multiple births...
  14. pmc Nongenetic factors associated with human handedness and footedness in Japanese twin children
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Tsu 7 1 Nakanuma, 929 1212, Kahoku, Ishikawa, Japan
    Environ Health Prev Med 11:304-12. 2006
    ..The aim of this study is to clarify the factors related to the handedness and footedness of twins using two of the largest databases on Japanese twins available...
  15. ncbi request reprint The effect of an increase in the rate of multiple births on low-birth-weight and preterm deliveries during 1975-2008
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Ishikawa, Japan
    J Epidemiol 20:480-8. 2010
    ....
  16. pmc Breast-feeding rates and related maternal and infants' obstetric factors in Japanese twins
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, 7 1 Tsu, Nakanuma, Kahoku, Ishikawa, 929 1212, Japan
    Environ Health Prev Med 13:187-97. 2008
    ..The importance of the gestational weeks for breast-feeding rates was also shown...
  17. ncbi request reprint Twin database of the secondary school attached to the Faculty of Education of the University of Tokyo
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Tsu 7 1 Nakanuma, Kahoku, Ishikawa 929 1212, Japan
    Twin Res Hum Genet 9:827-31. 2006
    ..Three independent datasets exist: one for applicants (11-12 years), one for students (12-18 years), and one for graduates (18-72 years). These three historical databases and research perspectives are introduced herein...
  18. ncbi request reprint Characteristics of a Japanese adult twin database of high school graduates
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    Twin Res 7:430-4. 2004
    ..The limitation of this cohort is its selection bias concerning socioeconomic status and its imbalance in favor of monozygotic pairs...
  19. ncbi request reprint Physical growth charts from birth to six years of age in Japanese twins
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Tsu 7 1, Nakanuma, Kahoku, Ishikawa 929 1212, Japan
    J Epidemiol 14:151-60. 2004
    ..The purpose of this study was to analyze the characteristics of the physical growth of twins in childhood and to present growth charts of Japanese twins...
  20. ncbi request reprint Genetic and environmental influences on finger-sucking and nail-biting in Japanese twin children
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    Twin Res Hum Genet 8:320-7. 2005
    ..7% of males (tetrachoric correlation: r = .40) and 15.7% of females (r = .32), which was attributed partly to common genetic or environmental factors. The proportion of total shared variance explained by genetic factors was 67%...
  21. ncbi request reprint Genetic and environmental influences on the handedness and footedness in Japanese twin children
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    Twin Res Hum Genet 8:649-56. 2005
    ..It was concluded that the genetic effects on handedness and footedness are relatively small, as is their association; moreover, considerably large twin samples are needed to obtain stable and appropriate results...
  22. ncbi request reprint Population-based database of multiples in childhood of Ishikawa Prefecture, Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Tsu 7 1 Nakanuma, Kahoku, Ishikawa 929 1212, Japan
    Twin Res Hum Genet 9:832-7. 2006
    ..This registry aims not only to aid research on human genetics and maternal and child health, but also to contribute to the development of welfare programs for families with multiples...
  23. ncbi request reprint Comparison of obstetric and birthweight characteristics between the two largest databases of Japanese twins measured in childhood
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    Twin Res Hum Genet 8:63-8. 2005
    ..We conclude that the obstetric and birthweight feature data from both groups should be considered to construct twin growth charts based on the methods of sample selection...
  24. ncbi request reprint Zygosity misclassification of twins at birth in Japan
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Japan
    Twin Res 7:228-32. 2004
    ..Concluding, even now many monozygotic twins in Japan may be misclassified as dizygotic at birth by obstetricians based solely on the number of placenta...
  25. ncbi request reprint Reference birth weight, length, chest circumference, and head circumference by gestational age in Japanese twins
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa 929 1212, Japan
    J Epidemiol 13:333-41. 2003
    ....
  26. ncbi request reprint Genetic and environmental influences on stuttering and tics in Japanese twin children
    Syuichi Ooki
    Department of Health Science, Ishikawa Prefectural Nursing University, Kahoku, Ishikawa, Japan
    Twin Res Hum Genet 8:69-75. 2005
    ..8% of males (tetrachoric correlation: r = .18) and 0.5% of females (r = .31), which was attributed partly (nearly 10% of total genetic variance of each trait) to the common genetic factors, with genetic correlation of r = .32...