The PCMH holds promise for improving the experiences of patients and staff and potentially for improving care processes,but current evidence is insufficient to determine effects on clinical and most economic outcomes

clinicaltrials.gov Identifier: NCT00237692.

Background:The relative effectiveness of angiotensin-converting enzyme (ACE) inhibitors and angiotensin II receptor blockers (ARBs) for lowering blood pressure is unknown.

Several single-item questions, including use of a surrogate reader and confidence with medical forms, were moderately effective for quickly identifying patients with limited literacy.