HCR 400 Module 1 Appraisal: Intervention Study Example

Course	HCR 400 Evidence-Based Practice for the Health Care Professional
Module	Module 1
Paper type	Critical appraisal of a randomized trial
Length	About 518 words, 4 pages
Format	APA 7 student paper
School	Arizona State University
Program	BS in Health Care Coordination
Updated	October 2026

Free sample paper for HCR 400 Module 1

Rapid Critical Appraisal: The SPRINT Trial of Intensive Blood Pressure Control

Student Name

BS in Health Care Coordination, Arizona State University

HCR 400: Evidence-Based Practice for the Health Care Professional

Instructor Name

Month Day, Year

What this page is doingThe title names the appraisal format and the study, as appraisal worksheets in evidence-based practice courses usually do.

Rapid Critical Appraisal: The SPRINT Trial of Intensive Blood Pressure Control

Study and Question

Study: SPRINT Research Group (2015), a randomized trial at 102 U.S. sites.

Clinical question (PICO): In adults aged 50 or older with high cardiovascular risk but without diabetes (P), does treating to a systolic target below 120 mm Hg (I), compared with below 140 mm Hg (C), reduce major cardiovascular events and death (O)?

Are the Results Valid?

The main threat to validity is the lack of blinding, which could affect how events were detected; blinded adjudication of outcomes reduces this risk. A second consideration is that the trial was stopped early for benefit after a median of 3.26 years. Early stopping can exaggerate effects, though the large number of events makes this less likely here (Hoffmann et al., 2023).

Appraisal question	Answer	Notes
Was assignment randomized?	Yes	9,361 participants randomly assigned
Was allocation concealed?	Yes	Central web-based randomization
Were groups similar at baseline?	Yes	Baseline characteristics balanced
Were participants and clinicians blinded?	No	Not possible with different targets; outcome adjudicators were blinded
Was follow-up complete?	Largely	Losses small relative to sample
Was analysis by intention to treat?	Yes	Participants analyzed as randomized
Were groups treated equally apart from the intervention?	Mostly	Intensive group had more visits and medications by design

What this page is doingThe table follows the validity questions of a rapid appraisal form, and the paragraph after it says which answers matter most, which is the judgment the assignment rewards.

What Are the Results?

The primary outcome combined heart attack, other acute coronary events, stroke, heart failure and cardiovascular death, and it occurred at 1.65 percent per year with intensive treatment and 2.19 percent per year with standard treatment, a hazard ratio of 0.75 (95% CI, 0.64 to 0.89). All-cause death was also lower, hazard ratio 0.73 (95% CI, 0.60 to 0.90). In absolute terms, the difference in the primary outcome was about 0.54 percentage points per year, so roughly 185 people would need intensive treatment for one year to prevent one event, or about 60 over three years. Harms matter: serious adverse events of hypotension, fainting, electrolyte problems and acute kidney injury were more common with intensive treatment (SPRINT Research Group, 2015).

Will the Results Help My Patients?

The findings apply to adults resembling the participants: aged 50 or older, at high cardiovascular risk, without diabetes or prior stroke. They do not directly apply to people with diabetes, who were excluded, or to residents of nursing homes. Blood pressure in SPRINT was measured with an automated device, often without staff present, which tends to give lower readings than routine office measurement, so a target of 120 in practice may not equal 120 in the trial. Patients should weigh fewer cardiovascular events and deaths against more medications, visits and side effects. Reaching a lower target also requires more frequent adjustment, and home monitoring paired with support is one evidence-based way to provide it (Uhlig et al., 2013).

Appraisal Summary

Domain	Judgment
Validity	High, despite unblinded treatment
Importance	Clinically meaningful relative and absolute reductions
Applicability	High-risk adults without diabetes; measurement method matters

Conclusion

SPRINT is a well-conducted trial with clinically important results. Its evidence supports discussing a lower blood pressure target with high-risk adults without diabetes, with attention to measurement technique and adverse effects.

References

Hoffmann, T., Bennett, S., & Del Mar, C. (2023). Evidence-based practice across the health professions (4th ed.). Elsevier.

SPRINT Research Group. (2015). A randomized trial of intensive versus standard blood-pressure control. New England Journal of Medicine, 373(22), 2103-2116. https://doi.org/10.1056/NEJMoa1511939

Uhlig, K., Patel, K., Ip, S., Kitsios, G. D., & Balk, E. M. (2013). Self-measured blood pressure monitoring in the management of hypertension: A systematic review and meta-analysis. Annals of Internal Medicine, 159(3), 185-194. https://doi.org/10.7326/0003-4819-159-3-201308060-00008

Reading the HCR 400 Module 1 assignment instructions

HCR 400 sets aside 85 of its 450 points for five critical appraisal assignments, and the intervention appraisal is the largest of them at 20 points, tied with the systematic review. The course objective behind all five is to critically appraise best evidence using rapid critical appraisal forms. Hoffmann, Bennett and Del Mar's textbook, Evidence-Based Practice Across the Health Professions, frames appraisal of a trial around validity first, then the size and precision of the effect and finally whether it fits the patients in front of you. This assignment falls in the week devoted to evidence about interventions. Instructors sometimes assign a common trial and sometimes let each student pick one that serves the group's question, so check the Canvas page, and if a worksheet is attached there, complete it rather than inventing your own layout.

How this HCR 400 Module 1 example is built

The sample opens by naming the trial and restating it as a PICO question, which keeps the appraisal focused on a clinical decision. Validity is handled in a table that works through randomization, concealment, baseline balance, blinding, follow-up, intention-to-treat analysis and equal treatment, and the paragraph after it singles out the two issues that genuinely matter here: treatment that could not be blinded and a trial halted early for benefit. The results section reports hazard ratios with their confidence intervals, then translates the main finding into an absolute yearly difference and a figure for how many people must be treated, and it gives equal attention to the harms. Applicability is judged against who was and was not enrolled and how blood pressure was measured, and a three-row summary table records the verdict.

Reading the HCR 400 Module 1 grading rubric

Twenty points are available for this appraisal under the Canvas rubric. Strong intervention appraisals usually earn credit for supporting each validity judgment with a detail from the methods, interpreting hazard ratios and intervals correctly, expressing benefit in absolute as well as relative terms, weighing adverse effects alongside benefits and making an argued case about which patients the trial speaks to. Marks tend to slip when the abstract is paraphrased in place of appraisal, when checklist items get a bare yes or no, when a relative reduction is presented as if it described individual benefit and when the writer simply assumes that the results transfer to any adult with high blood pressure.

HCR 400 Module 1 help with common mistakes

Details about allocation concealment, losses to follow-up and stopping rules often sit in the supplementary appendix rather than the main article, so download it. Work out at least one absolute figure yourself; dividing one by the absolute risk difference gives the number needed to treat, and explaining what that number means shows real understanding. Decide which threats could actually overturn the conclusion and say so, rather than listing every imperfection with equal weight. For applicability, put the trial's inclusion and exclusion criteria next to a description of the patients you have in mind. Using the textbook's own appraisal questions as headings keeps the paper organized. The desk is happy to check your arithmetic if the calculation feels shaky.

Write yours, or have the desk draft it

This paper is an original model document written by our desk, not a submitted student paper and not an official Arizona State University document. Read it for the moves, then write your own to the instructions in your classroom. If you want one built to your exact prompt and rubric, the first custom sample is free and arrives in 24 to 48 hours.

More HCR 400 and BS in Health Care Coordination sample papers

HCR 400 Module 1 questions, answered

Where can I find a free HCR 400 Module 1 sample paper?

This page has a full HCR 400 Module 1 sample: a rapid critical appraisal of the SPRINT blood pressure trial.

What are the three questions of a critical appraisal?

Whether the study's methods earn trust, what size of effect it found and with what precision, and whether its patients resemble yours.

What is intention-to-treat analysis?

Counting every participant in the arm chance assigned them to, even if they stopped or switched treatment.

How do you calculate a number needed to treat?

Take the reciprocal of the absolute difference in risk; in SPRINT a yearly gap of 0.54 percentage points works out to roughly 185 people treated for a year to prevent one event.

How much is the HCR 400 intervention appraisal worth?

It is worth 20 points of the 85 points for the five critical appraisals.

HCR 400 Module 1 Critical Appraisal: Intervention Study Example