The comparison of the prevalence of diabetes in 2002 and 2010 in the southern Chinese adults 18 years of age and above.

*: diabetes was diagnosed by self-reporting in an interview and with fasting plasma glucose (FPG) test.†: diabetes was diagnosed by self-reporting in an interview, with FPG test and with 2-hour post-load plasma glucose (2-h PG) test for those with an IFG.‡: diabetes was diagnosed by self-reporting in an interview, with FPG test and with 2-h PG test for all participants.||||: diabetes was diagnosed by self-reporting in an interview, with FPG, with 2-h PG test and with HbA1c measurement.