Comparability of naevus counts between and within examiners, and comparison with computer image analysis
1994

Comparability of Naevus Counts in Adolescents

Sample size: 66 publication Evidence: moderate

Author Information

Author(s): J.F. Aitken, A. Green, A. Eldridge, L. Green, J. Pfitzner, D. Battistutta, N.G. Martin

Primary Institution: Queensland Institute of Medical Research

Hypothesis

How reliable are naevus counts between different examiners and methods?

Conclusion

The study found high comparability of naevus counts between and within similarly trained examiners.

Supporting Evidence

  • Agreement between the two examiners for total naevi was very high with an intra-class correlation coefficient of 0.96.
  • Intra-examiner repeatability was also high, particularly for the more experienced examiner.
  • Counts by computer imaging showed moderate agreement with nurse examiners but underestimated the total number of lesions.

Takeaway

This study shows that two nurses can count moles on kids' bodies and get similar results, which is important for checking skin health.

Methodology

Whole-body naevus counts were performed by two nurse examiners on 66 adolescents on two occasions, and counts were compared with computer image analysis.

Potential Biases

Differences in examiner experience could introduce variability in counts.

Limitations

The study may not be generalizable to populations with different sun exposure or naevus densities.

Participant Demographics

Participants were 12-year-old Caucasian adolescents from Brisbane, Australia.

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