BMC Public Health 2007, 7:230 http://www.biomedcentral.com/1471-2458/7/230 42. Wendel-Vos GC, Schuit AJ, Saris WH, Kromhout D: Reproducibil- ity and relative validity of the short questionnaire to assess health-enhancing physical activity. J Clin Epidemiol 2003, 56:1163-1169. 43. Craig CL, Marshall AL, Sjostrom M, Bauman AE, Booth ML, Ains- worth BE, Pratt M, Ekelund U, Yngve A, Sallis JF, Oja P: Interna- tional physical activity questionnaire: 12-country reliability and validity. Med Sci Sports Exerc 2003, 35:1381-1395. 44. Ainsworth BE, Haskell WL, Leon AS, Jacobs DR Jr., Montoye HJ, Sallis JF, Paffenbarger RS Jr.: Compendium of physical activities: clas- sification of energy costs of human physical activities. Med Sci Sports Exerc 1993, 25:71-80. 45. Kemper HC, Ooijendijk WTM, Stiggelbout M: Consensus over de Nederlandse Norm Gezond Bewegen. [Consensus on the Dutch norm for health enhancing physical activity]. Tijdschr Soc Geneeskd 2000, 78:180-183. 46. Berry JW: Immigration, acculturation, and adaptation. Applied Psychology-An International Review-Psychologie Appliquee-Revue Interna- tionale 1997, 46:5-34. 47. Berry JW, Kwak K, Phinney J, Liebkind K, Sam DL, Virta W, Westin C: The ICSEY questionnaire: Working document of the International Com- parative Study of Ethnocultural Youth. 18-4-0001 edition. 1994. 48. Martens EP: Minderheden in Beeld. De SPVA-98.[Minorities examined. SPVA-98]. Rotterdam, Instituut voor Sociologisch-Economisch Onderzoek [Institute for Sociological-Economic Research]; 1999. 49. Saelens BE, Sallis JF, Black JB, Chen D: Neighborhood-based differ- ences in physical activity: an environment scale evaluation. Am J Public Health 2003, 93:1552-1558. 50. Hosmer DW, Lemeshow S: Applied Logistic Regression New York, John Wiley & Sons; 1989. 51. Harada N, Chiu V, Makinodan T: The influence of acculturation on physical activity in minority older adults. West Los Angeles, UCLA; 1998. 52. Kandula NR, Lauderdale DS: Leisure time, non-leisure time, and occupational physical activity in Asian Americans. Annals of Epidemiology 2005, 15:257-265. 53. Ajzen I: The Theory of Planned Behavior. Organ Behav Hum Decis Process 1991, 50:179-211. 54. Bandura A: The explanatory and predictive scope of self-effi- cacy theory. J Soc Clin Psychol 1986, 4:359-373. 55. Hunt LM, Schneider S, Comer B: Should "acculturation" be a var- iable in health research? A critical review of research on US Hispanics. Soc Sci Med 2004, 59:973-986. 56. Salant T, Lauderdale DS: Measuring culture: a critical review of acculturation and health in Asian immigrant populations. Soc Sci Med 2003, 57:71-90. 57. braido-Lanza AF, Armbrister AN, Florez KR, Aguirre AN: Toward a theory-driven model of acculturation in public health research. Am J Public Health 2006, 96:1342-1346. 58. Arcia E, Skinner M, Bailey D, Correa V: Models of acculturation and health behaviors among Latino immigrants to the US. Soc Sci Med 2001, 53:41-53. 59. SCP, WODC, CBS: Jaarrapportage Integratie 2005 [Annual report on Integration 2005]. Den Haag, SCP/WODC/CBS; 2005. Pre-publication history The pre-publication history for this paper can be accessed here: http://www.biomedcentral.com/1471-2458/7/230/pre pub Publish with Bio Med Central and every scientist can read your work free of charge "BioMed Central will be the most significant development for disseminating the results of biomedical research in our lifetime." Sir Paul Nurse, Cancer Research UK Your research papers will be: available free of charge to the entire biomedical community peer reviewed and published immediately upon acceptance cited in PubMed and archived on PubMed Central yours — you keep the copyright Submit your manuscript here: http://www.biomedcentral.com/info/publishing_adv.asp BioMedcentral Page 9 of 9 (page number not for citation purposes)