Incidence Patterns of Cerebral Palsy in Shiga, Japan, 1977-1986. An epidemiological Study.:An Epidemiological Study
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概要
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An epidemiological study of cerebral palsy (CP) in Shiga Prefecture, was performed by reviewing medical records of the Medical Center for Children in Shiga (MCCS) and related hospitals.<BR>The total number of CP patients identified at 6 years old was 202 (117 boys and 85 girls) who were born during the ten years period between 1977-1986.<BR>The average prevalence of CP in Shiga Prefecture was calculated as 1.09 per 1, 000 school children aged 6 years.<BR>The prevalence of CP was 9 fold among low birth weight infants (1, 500-2, 499g) and 41 fold among very low birth weight infants (<1, 500g), compared with that of mature infants (≥ 2, 500g).<BR>One hundred and thirty nine cases (69%) were term infants, and 63 cases (31%) were preterm.<BR>Etiology of 139 term cases was considered to be prenatal in 50 cases (35%), perinatal in 37 cases (26%), postnatal in 3 cases (2%) and untraceable in 49 cases (35%), whereas prenatal in 12 cases (19%), perinatal in 7 cases (11%), and untraceable in 44 cases (70%) of 63 preterm cases.<BR>The prevalance rate of CP was fairly constant throughout the whole period of 1977-1986, but the term cases with perinatal etiologies significantly decreased in the period of 1982-1986, compared with those in the preceding period of 1977-1981. Children born weighting less than 1, 500 g significantly increased in the later period.<BR>The improvement of perinatal care seems to play a major role on these changes.<BR>Sixty percent of term cases and 20% of preterm cases were considered to be due to prenatal factors which could not be prevented by the improvement of perinatal care.
- 一般社団法人 日本小児神経学会の論文
一般社団法人 日本小児神経学会 | 論文
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