Strangert K
Scand J Infect Dis. 1977;9(2):119-23. doi: 10.3109/inf.1977.9.issue-2.11.
The occurrence of otitis media was studied in 108 Sweden children attending 14 day-care centers and compared with that in 57 children cared for in their own homes (usually with one or no sibling) and with that in 42 children in family day-care homes (where a woman cared for both her own and 1 to 4 other children in her home during the day). The children were 6 months to 2 years old. In the day-care centers 37% of the children had otitis media at least once during 8 months with an average of 2.2 episodes each. Otitis media was more common in 6- to 17-months-old children in the day-care centers than in children of the same age cared for in their own homes. The occurrences of otitis media in the day-care centers and in the family day-care homes were approximately equal. Children attending centers where those with signs of infection were excluded had otitis in about the same frequency as those attending centers where children with infections were accepted.
对108名在14家日托中心的瑞典儿童的中耳炎发病情况进行了研究，并与57名在家中照料（通常有一个或没有兄弟姐妹）的儿童以及42名在家庭日托所（一名女性白天在自己家中照料自己的孩子以及另外1至4名儿童）的儿童进行了比较。这些儿童年龄在6个月至2岁之间。在日托中心，37%的儿童在8个月内至少患过一次中耳炎，平均每人发病2.2次。日托中心6至17个月大的儿童患中耳炎的情况比在家中照料的同龄儿童更常见。日托中心和家庭日托所的中耳炎发病情况大致相同。在那些排除有感染迹象儿童的日托中心上学的儿童，患中耳炎的频率与那些接收感染儿童的日托中心上学的儿童大致相同。
