Ž . Early Human Development 62 2001 43–55 www.elsevier.comrlocaterearlhumdev International Child Care Practices Study: infant sleeping environment E.A.S. Nelson a, ) , B.J. Taylor b a Department of Paediatrics, The Chinese UniÕersity of Hong Kong, 6 r F Clinical Science Building, Prince of Wales Hospital, Shatin, Hong Kong, People’s Republic of China b Department of Paediatrics, Dunedin School of Medicine, UniÕersity of Otago, Dunedin, New Zealand ICCPS Study Group, Alejandre Jenik c , John Vance d , Karen Walmsley d , Katie Pollard d , Michelle Freemantle d , Dot Ewing d , Christa Einspieler e , Heidemarie Engele e , Petra Ritter f , G. Elske Hildes-Ripstein g , Monica Arancibia h , Xiaocheng Ji i , Haiqi Li j , E.A.S. Nelson k , Crystal Bedard k , Karin Helweg-Larsen l , Katrine Sidenius l , Susan Karlqvist l , Christian Poets m , Eva Barko n , Bernadette Kiberd o , Mary McDonnell o , Gianpaolo Donzelli p , Raffaele Piumelli p , Luca Landini p , Arturo Giustardi q , Hiroshi Nishida r , Stephanie Fukui r , Toshiko Sawaguchi r , Masataka Ino r , Takeshi Horiuchi s , Koki Oguchi s , Barry J. Taylor t , Sheila Williams t , Yildiz Perk u , David Tappin v , Joseph Milerad w , Maria Wennborg w , N. Aryayev x , V. Nepomyashchaya x c Buenos Aires, Argentina d Brisbane, Australia e Graz, Austria f Innsbruck, Austria g Manitoba, Canada h Santiago, Chile i Beijing, People’s Republic of China j Chongqing, People’s Republic of China k Hong Kong, People’s Republic of China l Copenhagen, Denmark ) Corresponding author. Tel.: q 852-263-228-59; fax: q 852-263-600-20. Ž . E-mail address: tony-nelson@cuhk.edu.hk E.A.S. Nelson . 0378-3782r01r$ - see front matter q 2001 Elsevier Science Ireland Ltd. All rights reserved. Ž . PII: S0378-3782 01 00116-5