I found a few more. The initial one has a slightly older cut-off point - 25-50 years of age:
Srimathi, N. L., & Kiran Kumar, S. K. (2010). Psychological well being of employed women across different organisations. Journal of the Indian Academy of Applied Psychology, 36(1), 89-95.
http://medind.nic.in/jak/t10/i1/jakt10i1p89.pdf
Similarly, the mean age of the sample in this conference paper was 47.9 years:
Madhusudanan S. and Nalini R. (2017) Psychological Well-being of Working Women
Chapter Psychological Well-being of Working Women
Sinha, S. (2017). Multiple roles of working women and psychological well-being. Industrial psychiatry journal, 26(2), 171.
This is the full text:
https://europepmc.org/articles/pmc6058447
Article Multiple roles of working women and psychological well-being
I tried to find research regarding those who were not working, and found this, but it does not only report on women:
Gandelman, N., & Piani, G. (2013). Quality of life satisfaction among workers and non-workers in Uruguay. Social indicators research, 111(1), 97-115.
I have written about this concerning migrant women in the hotel sector in Norway, although their age was not of specific concern in the analysis. Sollund, R. (2006). Mechanistic versus organic organizations' impact on immigrant women's work satisfaction and occupational mobility. Scandinavian Journal of Hospitality and Tourism, 6(4), 287-307. You find it among my contrubutions.