Table 4.

Analyses of diastolic blood pressure.

Trials		WMD [95% CI]	P value
QJDHW versus antihypertensive drugs
QJDHW versus captopril	1	−0.20 [−2.42, 2.02]	0.86
Meta-Analysis	1	−0.20 [−2.42, 2.02]	0.86
QJDHW plus antihypertensive drugs versus antihypertensive drugs
QJDH pill plus nifedipine controlled release tablet versus nifedipine controlled release tablet	1	−14.06 [−17.85, −10.27]	<0.00001
QJDH pill plus felodipine (plendil) versus felodipine (plendil)	1	−7.00[−9.68, −4.32]	<0.00001
Modified  QJDHW plus metoprolol versus metoprolol	1	−1.00 [−3.23, 1.23]	0.38
Meta-Analysis	3	−5.26 [−6.83, −3.70]	<0.00001

Abbreviations: QJDHW: Qi Ju Di Huang Wan.