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September 7, 1996BMJOpen Access

Logistic regression models used in medical research are poorly presented

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Key result

Cortical myelin patterns distinguish unipolar depression from healthy controls with 68% accuracy.

  • 68% accuracy
  • P<0.001
  • n=86

Why the study?

The association of unipolar depression with cortical myelin is underexplored despite evidence linking depression with white matter tract integrity.

Can cortical myelin patterns distinguish unipolar depression from healthy controls?

Population

39 unipolar depression and 47 healthy control participants aged 19-44, 75% female

Comparison

Unipolar depression vs healthy controls

Design

Case-control study using logistic elastic net regularized regression and linear discriminant analysis

Authors

UGUlrich GrouvenInstitute for Quality and Efficiency in Health Care

Discussion

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Implication

May support cortical myelin patterns as a depression biomarker; leaves open validation in larger prospective studies.

Study Design

Type

Case-Control (n=86)

Structured PICO

Can cortical myelin patterns distinguish unipolar depression from healthy controls?

P
Population
86 participants (39 with unipolar depression and 47 healthy controls) aged 19-44 years, 75% female.
E
Exposure
Cortical myelin characterization using T1w/T2w ratio in 360 Glasser atlas regions
C
Comparator
Healthy controls
O
Outcome
Classification accuracy of UD vs. HCsurrogate

Main Result

Effect estimate: 68% accuracy

p-value: p=<0.001

Cortical myelin patterns in specific brain regions may serve as a biomarker to distinguish unipolar depression from healthy controls.

Cite This Study

Ulrich Grouven (1996) conducted a case-control in Unipolar depression (n=86). Unipolar depression vs. Healthy controls was evaluated on Classification accuracy of unipolar depression versus healthy controls based on cortical myelin (68% accuracy, p=<0.001). Cortical myelin patterns distinguished patients with unipolar depression from healthy controls with 68% accuracy (sensitivity 63.8%, specificity 71.5%, p<0.001).

synapsesocial.com/papers/6aacccfeba6562a1f1ecc737https://doi.org/10.1136/bmj.313.7057.628
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Confidence intervals rather than P values: estimation rather than hypothesis testing.1986 · 2,047 citations
  2. 2Standardizing Criteria for Logistic Regression Models1993 · 15 citations
  3. 3Statistics in medical journals: Developments in the 1980s1991 · 270 citations