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Table 3 Implementation outcomes for Hypertension Treatment in Nigeria Program

From: Hypertension Treatment in Nigeria (HTN) Program: rationale and design for a type 2 hybrid, effectiveness, and implementation interrupted time series trial

RE-AIM Domain: Definition

Level

Type

Outcome

Reach:

Absolute number, proportion, and representativeness of sites and individuals who participate in the HTN Program

Program

Quantitative

• Number of participating PHCs/total number of selected PHCs in the Federal Capital Territory

Center

Quantitative

• Diversity of participating PHCs and staff in terms of size, ward, baseline staffing levels

Qualitative

• Reasons for non-participation of selected PHCs in the Federal Capital Territory

• Reasons for adult patients to have not been screened for high BP within participating PHCs within the past 3 working days

Individual

Quantitative

• Number of adult patients with BPs measured / total number of adult patients within participating PHCs within the past 3 working days

• Differences in sociodemographic (e.g., age, sex, geography) characteristics between registered patients and individuals in the clinic catchment areas based on concurrently collected or community-based survey data

• Diversity of registered patients receiving care at participating PHCs for HTN diagnosis and management by age, sex, ward, and education

Effectiveness:

The impact of the HTN Program on treatment and control rates

Program

Quantitative

• Treatment rate within the overall system of participating PHCs defined by 6-month rolling average

• Control rate within the overall system of participating PHCs defined by 6-month rolling average

• Mean systolic blood pressure and diastolic blood pressure within the overall system of participating PHCs defined by 6-month rolling average and based on last visit

Center

Quantitative

• Median and/or mean treatment rate across participating PHCs defined by 6-month rolling average

• Median and/or mean control rate across participating PHCs defined by 6-month rolling average

• Mean SBP and DBP across participating PHCs defined by 6-month rolling average and based on last visit

Qualitative

• Reasons for variation in treatment rates between participating PHCs

• Reasons for variation in control rates between participating PHCs

• Reasons for variation in mean systolic and diastolic blood pressure between participating PHCs

Adoption:

Absolute number, proportion, and representativeness of sites who are willing to initiate the HTN Program

Program

Quantitative

• Percentage of PHCs using the hypertension patient registry in the last 3 months

• Percentage of patients treated with fixed-dose combination therapies in the last 3 months

Qualitative

• Reasons for variation in registry use among participating PHCs at 3 months after site initiation

• Reasons for variation in use of fixed-dose combination therapies in the last 3 months

• Adoption of team-based care among participating PHCs, and reasons for success or challenges

Implementation:

Fidelity to the HTN Program protocol, including consistency of delivery as intended. Time and cost of the intervention, and use of the intervention strategies

Program

Quantitative

Fidelity (Implementation)

• Proportion of selected PHCs who participated in baseline hypertension training

• Proportion of selected PHCs who participated in site initiation training

• Proportion of selected PHCs who received at least one supportive supervision visit in the past 7 months

• Proportion of selected PHCs who received an audit and feedback report within the past 3 months

• Percentage of PHCs with a working blood pressure monitor at the site on the day of assessment

• Percentage of PHCs with blood pressure medicines available on the day of assessment

• Percentage of patients with step up indicated who received step up treatment in the last 6 months

Cost

• Modeled direct HTN Program costs based on staff, BP machines, data capture, data analysis, and BP lowering drugs for hypertension diagnosis, treatment and control overall, for each PHC and per patient

Program

Qualitative

Fidelity (Implementation)

• Reasons for variation in fidelity measures

• Reasons for variation in availability of essentials medicines and equipment

• Reasons for variation in fidelity to the step up treatment protocol

Cost

• Acceptability of upfront and ongoing HTN Program costs among stakeholders, including within Federal Ministry of Health

Center

Quantitative

Fidelity (Intervention)

• Number and proportion of adult patients with hypertension who are registered/total number of adult patients with elevated blood pressure within participating PHCs within the past 3 working days

• Monthly proportion of registered patients with appropriate stepped care/total number of registered patients

• Monthly proportion of registered patients treated with fixed-dose combination therapy/total number of patients on treatment

Center, Individual

Qualitative

Fidelity (Implementation)

• Reasons for adult patients with hypertension to have not been registered within participating PHCs within the past 3 working days

Individual

Quantitative

Cost

• Modeled monthly and annual out-of-pocket drug costs for hypertension treatment

Individual

Qualitative

Acceptability

• Reasons for variation in acceptability, satisfaction, and perceived quality of care at patient-level

• Trust in primary health care system

Cost

• Acceptability of upfront and ongoing hypertension diagnosis and treatment costs among patients with hypertension

Maintenance:

The extent to which the HTN Program becomes institutionalized or part of the routine organizational practice

Center

Quantitative

Maintenance

• Proportion of participating PHCs who maintain treatment rates above baseline rates at 6, 12, 24, 36, and 48 months

• Proportion of participating PHCs who maintain control rates above baseline rates at 6, 12, 24, 36, and 48 months

• Proportion of participating PHCs without blood pressure medication stockouts at 36 and 48 months

• Proportion of participants retained in care at participating PHCs at 6, 12, 24, 36, and 48 months

Qualitative

Maintenance

• Reasons for variation in maintenance of treatment rates above baseline rates

• Reasons for variation in maintenance of control rates above baseline rates

• Reasons for variation in sustainment of blood pressure medication supplies

• Reasons for variation in proportion of participants retained in care at PHCs

Individual

Qualitative

Maintenance

• Reasons for remaining in care and on treatment within the PHC

  1. Abbreviations: BP Blood pressure, HTN Hypertension Treatment in Nigeria, PHC Primary health care center