Table 2. Summary of findings of studies examining the associations of arrangements relating to human or physical resources with hypertension outcomes.

Health System Arrangement	Study	Setting and Sample Size	Study Design	Findings (95% CIs Given in Brackets Where Available). ORs Are Adjusted for Confounding Unless Stated Otherwise.	Risk of Bias Assessment
Physical resources
Distance to health facility	Ambaw et al. 2012 [47]	Ethiopia - University hospital, mixed rural and urban populationn = 384	Cross-sectional	OR for medication adherence travel time to health facilities <30 min versus >30 min 2.02 (1.19–3.43)	Low risk of bias.
Human resources
Grade of treating physician	Federman et al. 2005 [48]	US - All male Veterans Affairs populationn = 15,893	Cross-sectional	OR for BP control (baseline = 1 for resident). Mid level doctor 1.12 (0.98–1.28), attending 1.23 (1.08–1.39)	Unclear risk of non-differential misclassification.
Physician specialism	Mejia-Rodriguez et al. 2009 [43]	Mexico - Regional Family medicine unitsn = 4,040	Cross-sectional	OR for uncontrolled HT in those treated by non-specialists versus specialists 1.43 (1.20–1.71)	Unclear risk of non-differential misclassification.
Per capita supply of health professionals	Bleich et al. 2007 [41]	Mexico - Nationally representative samplen = 2,130	Cross-sectional	OR for HT treatment 1.04 (0.85 to 1.26) and control 0.81 (0.61–1.09) in areas with high versus low supply of health professionals.	Unclear risk of non-differential misclassification.