After we published the article “Wong DKF, He X et al (2008) Mental health of migrant workers in China: prevalence and correlates. Soc Psychiatry Psychiatr Epidemiol 43” [The online version can be found at http://dx.doi.org/10.1007/s00127-008-0341-1 (published online 8 April 2008)]

the author asked us to correct a part of his abstract:

Methods A total of 475 migrant workers from four major districts in Shanghai were recruited through a survey design with a multistage cluster sampling. Male and female migrant workers were identified as mentally healthy or unhealthy using the brief symptom inventory. Socio-demographic characteristics and migration stress were explored as correlates of the mental health of the migrant workers.

The publisher apologises for any inconvenience caused by this mistake.