Table 2.

Medications of patients with apparent treatment-resistant hypertension (n = 646)

Mean number of hypertensive medications (SD)	3.7 (0.7)
On three hypertensive medications only, n (%)	282 (43.7)
Prescribed one or more combined medication, n (%)	368 (56.9)
Adequate WHO-DDD requirements for each hypertensive medication, n (%)	123 (19.0)
At least half recommended dosing for all medications (not diuretics), n (%)	439 (67.9)
Nine monthly PCRS prescriptions printed in the past 12 months, n (%)	542 (83.9)

PCRS = primary care reimbursement service. SD = standard deviation. WHO-DDD = World Health Organization-defined daily dosing.