Historical Study on Nasal Pressure Injury Incidence in Head and Neck Surgery

515 patients were analyzed in a historical controlled study evaluating a multidisciplinary quality improvement initiative. The research, authored by Ying Zhou and published in 2026, compares nasal pressure injury incidence across two 12-month periods before and after intervention. It reports a significant reduction in injury rates from 7.24% to 2.38%.

Use Cases

• Analyze the relationship between intervention group membership and pressure injury incidence using the reported p-value and confidence intervals.
• Model the probability of stage 2 nasal pressure injuries based on patient cohort and intervention status, given the elimination of such cases post-intervention.
• Calculate the Number Needed to Treat (NNT) of 21 and Absolute Risk Reduction (ARR) of 4.86% to assess intervention cost-effectiveness for similar surgical settings.
• Compare baseline patient characteristics between the Historical Control and Intervention groups using the reported Standardized Mean Differences (SMD) below 0.1.
• Evaluate the effectiveness of the modified CORN scale risk assessment tool by correlating its use with the reduction in injury stages observed.

Strengths

• Study includes 515 patient records with well-balanced baseline characteristics (all SMD < 0.1).
• Reports specific, statistically significant outcomes: injury incidence reduced from 7.24% to 2.38% (p=0.008).
• Provides detailed effect size metrics including Absolute Risk Reduction (4.86%), Relative Risk (0.33), and Number Needed to Treat (21).

Limitations

• Dataset is small in file size (182.3 KB), likely containing only summary statistics rather than raw patient-level data.
• As a historical controlled study, it may have limitations from non-randomized design compared to a randomized controlled trial.
• Temporal and geographic coverage is limited to a single institution's experience over two specific 12-month periods.

Provenance

Source

figshare, authored by Ying Zhou.

Collection Method

Historical controlled study comparing two 12-month periods pre- and post-implementation of a quality improvement initiative.

Time Range

Two 12-month periods (pre- and post-intervention).

Freshness

Last updated in April 2026, indicating recent publication.

Geography

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