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MCI and dementia were three to four times more prevalent in the majority of non-western immigrant groups when compared to the native Dutch population. These differences are important for planning and improving healthcare facilities. Copyright © 2016 John Wiley & Sons, Ltd.

The results provide sufficient support for use of the translated version of the 11-item DJGLS among Turkish and Moroccan older migrants and use of the Dutch version for Surinamese older migrants as a reliable and valid measure of loneliness. Fit of latent structural models varied between good and poor. Further research is needed to investigate ethnic differences in levels and determinants of loneliness.