Fosarelli P, Winkelstein J, DeAngelis C, Mellits E D
Clin Pediatr (Phila). 1985 Feb;24(2):84-8. doi: 10.1177/000992288502400204.
Serum IgG, IgM, and IgA were measured in 316 infants younger than 12 months of age. Information including the child's race, sex, age, and past history of infections or atopy was collected. Birth records were also reviewed to ascertain the child's birthweight and gestational age. Serum IgG levels were higher in black infants than in white infants after the age of 4 months. Serum IgM levels were higher in black females than in black males for infants older than 1 month. For infants younger than 4 months of age, those weighing less than 2500 g at birth had lower IgG levels than those weighing more than 2500 g. Infants younger than 1 month whose gestational age had been less than 36 weeks had lower IgG levels than those greater than 36 weeks. Infants aged 1 to 4 months whose gestational age had been less than 36 weeks had lower IgG levels than did those 40 or more weeks. Infants with a positive history for atopy had lower IgG levels than similarly aged infants with a negative history.
对316名12个月以下的婴儿进行了血清IgG、IgM和IgA检测。收集了包括儿童种族、性别、年龄以及既往感染或特应性病史等信息。还查阅了出生记录以确定儿童的出生体重和胎龄。4个月龄后，黑人婴儿的血清IgG水平高于白人婴儿。对于1个月以上的婴儿，黑人女性的血清IgM水平高于黑人男性。对于4个月龄以下的婴儿，出生时体重低于2500g的婴儿的IgG水平低于体重超过2500g的婴儿。胎龄小于36周的1个月以下婴儿的IgG水平低于胎龄大于36周的婴儿。胎龄小于36周的1至4个月龄婴儿的IgG水平低于胎龄40周或以上的婴儿。有特应性病史的婴儿的IgG水平低于年龄相仿但无该病史的婴儿。
