The original version of this article [1] unfortunately contained a mistake. In the subsection titled “Implications for policy” part of the text was incorrect. It read “One good example is Ghana, which has now achieved 54 % comprehensive health coverage of its population, and only 2 esources are shared by the family to meet the needs of elderly members [68, 69].” The corrected text can be found below:

“One good example is Ghana, which has now achieved 54 % comprehensive health coverage of its population, and only 27 % of health spending is financed out-of-pocket [41]. Strengthen safety nets: In the Nigerian context, household resources are shared by the family to meet the needs of elderly members [67, 68].”

The original article was corrected to reflect this.