Reducing Blood Pressure for the Elderly with Hypertension by Consuming Bay Leaves Decoction and Coriander Seeds Decoction

Q: What is the clinical evidence from this study?

Population: Stage 1 hypertension (n=66). Intervention: Bay leaf decoction vs. Coriander seed decoction (150 mL once daily). Primary outcome: Change in Mean Arterial Pressure (MAP) (p=0.000).

Q: What does this research mean for the field?

Bay leaf decoction is more effective than coriander seed decoction at reducing mean arterial pressure in elderly individuals with hypertension. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

Ulfatul Muflihah; Indra Ayu Nur Kholifah; Marissa Divya Sharma

doi:10.22442/jlumhs.2026.01535

June 1, 2026Journal of Liaquat University of Medical & Health SciencesOpen Access

Reducing Blood Pressure for the Elderly with Hypertension by Consuming Bay Leaves Decoction and Coriander Seeds Decoction

View Full Paper

Ask AI

Bookmark

Share

Key result

Bay leaf decoction lowers mean arterial pressure more than coriander seed decoction in hypertension.

P=0.000
n=66

Why the study?

The comparative effectiveness of bay leaf and coriander seed decoctions in reducing blood pressure in elderly hypertensive patients was not established.

Does bay leaf decoction reduce blood pressure more effectively than coriander seed decoction in elderly patients with stage 1 hypertension?

Key Points

To compare the effectiveness of bay leaf decoction versus coriander seed decoction in reducing blood pressure among elderly individuals diagnosed with hypertension.
Quasi-experimental two-group pre- and post-test design conducted at a single community health centre using purposive sampling (N=66).
Participants were allocated to consume either bay leaf decoction (n=33) or coriander seed decoction (n=33).
Mean Arterial Pressure (MAP) was evaluated before and after treatment using paired-samples t-tests and independent t-tests.
Both herbal preparations significantly reduced blood pressure from pre-test to post-test (p = 0.000 for bay leaf decoction; p = 0.000 for coriander seed decoction).
Bay leaf decoction achieved a greater reduction in Mean Arterial Pressure (mean difference: 11.93 mmHg; pre-test: 113.73 mmHg to post-test: 101.80 mmHg) compared to coriander seed decoction (mean difference: 11.45 mmHg; pre-test: 109.47 mmHg to post-test: 98.01 mmHg).
Independent t-test analysis demonstrated a statistically significant difference in effectiveness between the two interventions favoring bay leaf decoction (p-value = 0.000).

Structured PICO

Does bay leaf decoction reduce blood pressure more effectively than coriander seed decoction in elderly patients with stage 1 hypertension?

P

Population

66 older adults aged 55 to 74 years with stage 1 hypertension and no complications, currently taking antihypertensive medication, evaluated over a 5-day intervention period.

I

Intervention

Bay leaf (Syzygium polyanthum) decoction, 100 mL administered orally twice daily (morning and evening) for 5 consecutive days, taken at least 2 hours apart from prescribed antihypertensive medication.

C

Comparator

Coriander seed (Coriandrum sativum) decoction, 150 mL administered orally once daily in the morning for 5 consecutive days, taken at least 2 hours apart from prescribed antihypertensive medication.

O

Outcome

Change in Mean Arterial Pressure (MAP) before and after the 5-day intervention.surrogate

Main Result

Absolute Event Rate: 11.93% vs 11.45%

p-value: p=0.000

In a small quasi-experimental study of older adults on antihypertensive medication, bay leaf decoction was shown to reduce mean arterial pressure slightly more than coriander seed decoction over a 5-day period.

Limitations

Absence of a control group (placebo/no treatment) limits causal interpretation
Conducted in a single community health centre
Relatively small sample size limiting generalizability
Short intervention duration of only 5 days
Absence of a control group limits the ability to establish causal relationships
Relatively small sample size

Implication

Bay leaf decoction may modestly outperform coriander as adjunct; hypothesis-generating and should not change practice pending RCTs.

Abstract

OBJECTIVE: To analyze the differences of effectiveness between bay leaf decoction and coriander seed decoction in reducing blood pressure in elderly individuals with hypertension.METHODOLOGY: The research design used a Quasi-Experimental Design with two groups and pre-and post-tests.The sampling technique used was purposive, with a total sample of 66 respondents.33 respondents consumed bay leaf decoction, and 33 consumed coriander seed decoction.The data analysis used paired-samples t-tests and independent t-tests.RESULTS: The results of this study showed that bay leaf and coriander seed decoctions were effective in reducing blood pressure in elderly individuals with hypertension.The results of the independent t-test showed a p-value of 0.000, indicating a difference between consuming bay leaves decoction and coriander seeds decoction.The bay leaf decoction was more effective, with a mean difference in Mean Arterial Pressure of 11.93 mmHg.CONCLUSION: Consuming bay leaf decoction is more effective for reducing blood pressure in elderly individuals with hypertension.

Discussion

No takes yet. Share an insight, caveat, or question.

Cite This Study

Muflihah et al. (2026) studied Stage 1 hypertension (n=66). Bay leaf decoction vs. Coriander seed decoction (150 mL once daily) was evaluated on Change in Mean Arterial Pressure (MAP) (p=0.000). Bay leaf decoction was significantly more effective than coriander seed decoction at reducing mean arterial pressure in older adults with hypertension (p=0.000).

synapsesocial.com/papers/6ad0fc513afa093ea9acfda5 https://doi.org/10.22442/jlumhs.2026.01535

View Full Paper

Ask AI

Bookmark

Share

Reducing Blood Pressure for the Elderly with Hypertension by Consuming Bay Leaves Decoction and Coriander Seeds Decoction

Key Points

Structured PICO

Main Result

Limitations

Implication

Abstract

Discussion

Cite This Study

Reducing Blood Pressure for the Elderly with Hypertension by Consuming Bay Leaves Decoction and Coriander Seeds Decoction

Key Points

Structured PICO

Main Result

Limitations

Implication

Abstract

Discussion

Cite This Study

Keep reading

More from Journal of Liaquat University of Medical & Health Sciences

Keep reading

More from Journal of Liaquat University of Medical & Health Sciences