Yes. According to a systematic review conducted in 2011 (Fagundes et al., 2011), the prevalence of dementia was higher among women in all studies selected. The authors of this systematic review acknowledge that the age distribution of the sample populations was not uniform, which may explain the variation in the prevalence of dementia that was detected, as women tend to live eight years longer than men on average in Brazil, and, therefore, would contribute more to the prevalence rates of dementia. The review also showed that the prevalence of dementia increased with age and was inversely related to the socioeconomic status and number of years of education.

References:

Fagundes, S. D., Silva, M. T., Thees, M. F. R. S., & Pereira, M. G. (2011). Prevalence of dementia among elderly Brazilians: A systematic review. Sao Paulo Medical Journal, 129(1), 46–50. https://doi.org/10.1590/S1516-31802011000100009