Tang, J., Gao, X., Yu, Y., Ahmed, N.A., Zhu, H., Wang, J. and Du, Y.(2011) Sexual knowledge, attitudes and behaviors among unmarried migrant female workers in China: A comparative analysis. BMC Public Health, 11, 1-7. http://dx.doi.org/10.1186/1471-2458-11-917
 Chen, H., Zhang, L., Han, Y., Lin, T., Song, X., Chen, G. and Zheng, X. (2012) HIV/AIDS knowledge, contraceptive knowledge, and condom use among unmarried youth in China. AIDS Care, 24, 1550-1558.http://dx.doi.org/10.1080/09540121.2012.674093
 Sun, X., Liu, X., Shi, Y., Wang, Y., Wang, P. and Chang, C. (2013) Determinants of risky sexual behavior and condom use among college students in China. AIDS Care, 25, 775-783.http://dx.doi.org/10.1080/09540121.2012.748875
 Zhang, L., Li, X. and Shah, I.H. (2007) Where do Chinese adolescents obtain knowledge of sex education in China? Health Education, 107, 351-363.http://dx.doi.org/10.1108/09654280710759269
 Peking University (2010) Final report on the 2009 national youth reproductive health survey. Institute of Population Research, Peking University, Beijing.
 Ma, K.Y. (2010) Health newsletter 5. Education in sexuality: DOH tackles sensitive issue of sex among teens. Department of Health, Taiwan.
 Qian, X., Tang, S.L. and Garner, P. (2004) Unintended pregnancy and induced abortion among unmarried women in China: A systematic review. BMC Health Services Research, 4, 1-4.http://dx.doi.org/10.1186/1472-6963-4-1
 National Bureau of Statistics of China (2012) China’s total population and structural changes in 2011. National Bureau of Statistics of China, China.
 Wang, W., Wei, C., Buchholz, M., Martin, M.C., Smith, B.D., Huang, Z.J. and Wong, F.Y. (2010) Prevalence and risks for sexually transmitted infections among a national sample of migrants versus non-migrants in China. International Journal of STD & AIDS, 21, 410-415.http://dx.doi.org/10.1258/ijsa.2009.008518
 Li, S.H., Huang, Y., Cai, G., Xu, F.H. and Shen, X. (2009) Characteristics and determinants of sexual behavior among adolescents of migrant workers in Shanghai (China). BMC Public Health, 9, 195-205.http://dx.doi.org/10.1186/1471-2458-9-195
 Tang, L., Chen, R., Huang, D., Wu, H., Yan, H., Li, S. and Braun, K.L. (2013) Prevalence of condom use and associated factors among Chinese female undergraduate students in Wuhan, China. AIDS Care, 25, 515-523.http://dx.doi.org/10.1080/09540121.2012.720360
 Sudhinaraset, M., Astone, N. and Blum, R.M. (2012) Migration and unprotected sex in Shanghai, China: Correlates of condom use and contraceptive consistency across migrant and non-migrant youth. Journal of Adolescent Health, 50, S68-S74.http://dx.doi.org/10.1016/j.jadohealth.2011.12.007
 Yu, J. (2010) An overview of the sexual behaviour of adolescents and young people in contemporary China. Australasian Medical Journal, 3, 397-403.http://dx.doi.org/10.4066/AMJ.2010.317
 Reijneveld, S.J., van Nieuwenhuijzen, M., Velderman, M.K., Paulussen, T.W. and Junger, M. (2012) Clustering of health and risk behaviour in immigrant and indigenous Dutch residents aged 19-40 years. International Journal of Public Health, 57, 351-361.http://dx.doi.org/10.1007/s00038-012-0350-4
 Ip, W.Y., Chau, J.P.C., Chang, A.M. and Lui, M.H.L. (2001) Knowledge of and attitudes toward sex among chinese adolescents. Western Journal of Nursing Research, 23, 211-222.http://dx.doi.org/10.1177/019394590102300208
 The Family Planning Association of Hong Kong (2007) Youth sexuality study 2006. The Family Planning Association of Hong Kong, Hong Kong.
 Kirby, D. (1990) Sexuality questions and scales for adolescents. ETR Associate, Stockton.
 Lo, A. (2009) Reform of sex education for the next generation. Improving Hong Kong, 6, 8-10.
 Government Information Centre (2006) Sex education in schools press releases.http://www.info.gov.hk/gia/general/200605/17/P200605160251.htm
 Education Bureau (2011) Sex education website preface.
 Guo, W., Wu, Z., Shimmele, C.M. and Zheng, X. (2012) Condom use at sexual debut among Chinese youth.
 World Health Organization (2010) Social determinants of sexual and reproductive health: Informing future research and programme implementation. World Health Organization, Geneva.
 Zhuang, X., Wu, Z., Poundstone, K., Yang, C., Zhong, Y. and Jiang, S. (2012) HIV-related high-risk behaviors among Chinese migrant construction laborers in Nantong, Jiangsu. PLoS ONE, 7, 1-6.
 Lam, T.H., Stewart, S.M. and Ho, L.M. (2001) Prevalence and correlates of smoking and sexual activity among Hong Kong adolescents. Journal of Adolescent Health, 29, 352-358.http://dx.doi.org/10.1016/S1054-139X(01)00301-9
 Wong, W.C., Lee, A., Tsang, K.K. and Lynn, H. (2006) The impact of AIDS/sex education by schools or family doctors on Hong Kong Chinese adolescents. Psychology, Health & Medicine, 11, 108-116.http://dx.doi.org/10.1080/13548500500156105
 Wang, J., Simoni, P., Wu, Y. and Banvard, C. (2008) Female adolescents’ attitude towards sexually risky behaveiors. Journal of International Women’s Studies, 10, 120-133.
 Liu, Z.H., Wei, P.M., Wang, X.S., Huang, M.H., Li, X.N. and Yang, G.P. (2008) Investigation on influencing factors of sexual behaviors among college students in Nanjing. Chinese Journal of Public Health, 24, 1243-1245.
 Lee, L.K., Chen, P.C., Lee, K.K. and Kaur, J. (2006) Premarital sexual intercourse among adolescents in Malaysia: A cross-sectional Malaysian school survey. Singapore Medical Journal, 47, 476-481.
 Wu, Y. (2009) Incidence of sexual behaviors and the influencing factors among undergraduates in Guangzhou. Modern Preventive Medicine, 36, 282-284.
 Wang, J., Simoni, P. and Wu, Y. (2006) Human Papillomavirus (HPV) in rural adolescent females: Knowledge, protective sex, and sexual risk behaviors. Online Journal of Rural Nursing and Health Care, 6, 74-88.
 Kunnuji, M.O.N. (2012) Parent-child communicaton on sexuality-related matters in the city of Lagos, Nigeria. Africa Development, 37, 41-58.
 Sax, L. (2005) Why gender matters: What parents and teachers need to know about the emerging science of sex differences. Doubleday, New York.
 Gao, E., Lou, C. and Liu, Y. (2003) Assessment on accuracy of the data concerning first sexual behavior in Shanghai, China. Reproduction and Contraception, 10, 421-435.
 Fok, S.C. (2005) A study of the implementation of sex education in Hong Kong secondary schools. Sex Education, 5, 281-294.http://dx.doi.org/10.1080/14681810500171458
 Henderson, M., Wight, D., Raab, G.M., Abraham, C., Parkes, A., Scott, S. and Hart, G. (2007) Impact of a theoretically based sex education programme (SHARE) delivered by teachers on NHS registered conceptions and terminations: Final results of cluster randomised trial. BMJ, 334, 133.http://dx.doi.org/10.1136/bmj.39014.503692.55
 van Geel, M. and Vedder, P. (2011) The role of family obligations and school adjustment in explaining the immigrant paradox. Journal of Youth and Adolescence, 40, 187-196. http://dx.doi.org/10.1007/s10964-009-9468-y
 Sudhinaraset, M., Mmari, K., Go, V. and Blum, R. (2012) Sexual attitudes, behaviours and acculturation among young migrants in Shanghai. Culture, Health & Sexuality, 14, 1081-1094.http://dx.doi.org/10.1080/13691058.2012.715673
 Markham, C.M., Fleschler Peskin, M., Addy, R.C., Baumler, E.R. and Tortolero, S.R. (2009) Patterns of vaginal, oral, and anal sexual intercourse in an urban seventh-grade population. Journal of School Health, 79, 193-200. http://dx.doi.org/10.1111/j.1746-1561.2008.00389.x
 Centers for Disease Control and Prevention (2009) School connectedness: Strategies for increasing protective factors among youth. Department of Health and Human Services, Atlanta.
 Herr, S.W., Telljohann, S.K., Price, J.H., Dake, J.A. and Stone, G.E. (2012) High school health-education teachers’ perceptions and practices related to teaching HIV prevention. Journal of School Health, 82, 514-521.http://dx.doi.org/10.1111/j.1746-1561.2012.00731.x