Table 1 Criteria used to assign ratings to the CFIR constructs that influence screening and treatment of HTN in the HIV clinics

− 2

The construct has a negative influence to HTN screening and treatment in the HIV clinic. An impeding influence in work processes and/or an impeding influence in implementation efforts. The majority of interviewees (at least two) described with explicit examples how the key or all aspects of a construct manifests itself in a negative way.

− 1

The construct has a negative influence to HTN screening and treatment in the HIV clinic, an impeding influence in work processes and/or an impeding influence in implementation efforts. Interviewees make general statements about the construct manifesting in a negative way but without concrete examples:

• The construct is mentioned only in passing or at a high level without examples or evidence of actual, concrete descriptions of how that construct manifests

• There is a mixed effect of different aspects of the construct but with a general overall negative effect

• There is sufficient information to make an indirect inference about the generally negative influence and/or

• Judged as weakly negative by the absence of the construct

0

A construct has neutral influence to HTN screening and treatment in the HIV clinic if:

• It appears to have neutral effect (purely descriptive) or is only mentioned generically without valence

• There is no evidence of positive or negative influence

• Credible or reliable interviewees contradict each other

• There are positive and negative influences at different levels in the organization that balance each other out, and/or different aspects of the construct that have positive influence while others have negative influence and overall, and the effect is neutral

+ 1

The construct is a positive influence to HTN screening and treatment in the HIV clinic, a facilitating influence in work processes, and/or a facilitating influence in implementation efforts. Interviewees make general statements about the construct manifesting in a positive way but without concrete

• The construct is mentioned only in passing or at a high level without examples or evidence of actual, concrete descriptions of how that construct manifests;

• There is a mixed effect of different aspects of the construct but with a general overall positive effect; and/or

• There is sufficient information to make an indirect inference about the generally positive influence.

+ 2

The construct is a positive influence for HTN screening and treatment in the HIV clinic, a facilitating influence in work processes, and/or a facilitating influence in implementation efforts. The majority of interviewees (at least two) describe explicit examples of how the key or all aspects of a construct manifests itself in a positive way.

Missing Interviewee(s) were not asked about the presence or influence of the construct; or if asked about a construct, their responses did not correspond to the intended construct and were instead coded to another construct. Interviewee(s) lack of knowledge about a construct does not necessarily indicate missing data and may instead indicate the absence of the construct.