Table 4 The overview of the effect of interventions on BP control

Duration of intervention

6 months and under

Over 6 months

1.64 (1.24 to 2.16)

2.14 (1.60 to 2.87)

P = 0.19

Baseline systolic blood pressure

Below 150 mmHg

Over 150 mmHg

1.51 [1.17, 1.96]

2.27 [1.83, 2.81]

P = 0.02

Healthcare provider

Single (pharmacist, nurse or physician alone)

Team

1.96 [1.47, 2.62]

1.81 [1.38, 2.36]

P = 0.68

Tailored intervention

Tailored

Not tailored

1.94 (1.16 to 3.25)

1.83 (1.44 to 2.32)

P = 0.84

Medication adherence improvement techniques

Used

Not used

2.35 (1.62 to 3.42)

1.65 (1.28 to 2.11)

P = 0.12

Referral for medication change or adjustment

Included

Not included

1.77 [1.41, 2.21]

2.06 [1.34, 3.16]

P = 0.54