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NISP Questionnaire

• NISP Household Survey form 1992
• NISP Household Survey form 1993
• NISP Household Survey form 1994
• NISP Household Survey form 1995-96
• NISP Household Survey form 1997-2003
• NISP Household Survey form 2004
• NISP Household Survey form 2005
• NISP Household Survey form 2006

Summary Data

• Sleep position 1992-2009 (all races and ethnic groups)
• Sleep position 1992-2009 (white mothers)
• Sleep position 1992-2009 (black mothers)
• Sleep position 1992-2009 (Hispanic mothers)
• Sleep position 1992-2009 (Asian mothers)

The accompanying SAS dataset is also available for review and analysis.

Background Data from Other Sources