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Environ Health Prev Med. 2001 Jul;6(2):117-20. doi: 10.1007/BF02897957.

Evaluation of child care practice factors that affect the occurrence of sudden infant death syndrome: Interview conducted by public health nurses.

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  • 1Department of Maternal and Child Health, National Institute of Public Health, 4-6-1 Shirokanedai, Minato-ku, 108-8638, Tokyo, Japan.


We examined the child-rearing environmental factors that affect the occurrence of sudden infant death syndrome (SIDS) using a nationwide survey. Infants who died due to SIDS between January 1996 and June 1997 in Japan were identified from death certificates. Controls of the same gender, birthplace, and birth months as the corresponding SIDS were chosen from birth certificates. Interviews of both cases and controls were undergone in January and February, 1998 by public health nurses. The following child-rearing factors exhibited a significant relationship with the occurrence of SIDS: Concerning the sleeping position, the prone position was associated with increased risk compared with the supine position, with an odds ratio of 3.02 (95% c.i. 2.07-4.65). Regarding the feeding method, artificial feeding alone demonstrated a higher risk than breast feeding alone, with an odds ratio of 4.92 (95% c.i. 2.78-9.63). With regard to smoking, infants with both parents who smoked exhibited a higher risk than infants where neither parent smoked, with an odds ratio of 3.50 (95% c.i. 1.74-8.32).


artificial feeding; child care practice; prone sleeping position; smoking; sudden infant death syndrome

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