Article History
Accepted: 25 April 2018
First Online: 30 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest
: All procedures performed in this study are in accordance with the conventional ethical standards. We used the data from the national survey of midlife development in the United States. For more information about the data collection procedures, see ExternalRef removed.
: Informed consent has been obtained from all participants included in the study. For more information, see ExternalRef removed.