Skip to main content

Table 4 Correlation between suggested causes of unnecessary investigations and factors involved in increased volume of investigations1

From: What causes increasing and unnecessary use of radiological investigations? a survey of radiologists' perceptions

  Factor involved in increased volume of investigations
Cause of unnecessary investigations Referring physicians' uncertainty Economy/efficiency Patient autonomy/legal claims Medical possibility Health market
Repeating investigations .220** -.038 .031 -.066 .239**
Anticipated result unlikely to affect patient management .321** .012 .025 -.114* .179**
Investigating too often .347** .029 .016 -.124* .161**
Doing the wrong investigation .344** .018 .039 -.051 .196**
Insufficient referral information .346** .092 .035 -.120* .113*
Over-investigation .434** .007 .067 -.090 .196**
  1. 1Numbers are Spearman Rank Correlation Coefficients.
  2. ** P < 0.01, * P < 0.05