Hagberg B, Hagberg G, Olow I
Acta Paediatr Scand. 1975 Mar;64(2):187-92. doi: 10.1111/j.1651-2227.1975.tb03820.x.
From an unselected series of 560 cases of cerebral palsy in Sweden, born 1954-70, the changes in incidence through the four periods 1954-58, 1959-62, 1963-66 and 1967-70 were analyzed. The total incidence successively and significantly decreased from 2.2% in the first period to 1.3% in the last. This decrease was mainly related to (1) the syndromes of spastic and ataxic diplegia, (2) the low birth weight babies, and (3) the group with perinatal causes. The decrease was not related to any special intelligence quotient or geographical region.
从瑞典1954年至1970年出生的560例未经筛选的脑瘫病例系列中，分析了1954 - 58年、1959 - 62年、1963 - 66年和1967 - 70年这四个时期发病率的变化。总发病率从第一个时期的2.2%相继显著下降至最后一个时期的1.3%。这种下降主要与以下因素有关：(1)痉挛性和共济失调性双侧瘫综合征；(2)低体重儿；(3)围产期病因组。这种下降与任何特定的智商或地理区域无关。
