This might be an interesting publication for a lot of researchers in our field, published by a large group of researchers, including some CESAR members.
The instrument measuring self- care and it is a generic instrument named, Development and initial testing of the self-care of chronic illness inventory
B Riegel presenting this work at the 2018 Canberra Health Annual Research Meeting (CHARM). In Canberra in August 2018 and won the SYNERGY Award for the Best Nursing Research Oral Presentation. (see twitter: https://twitter.com/DrJaarsma/status/1025290685170114561)