Limits...
Intra-examiner and inter-examiner reproducibility of paraspinal thermography.

McCoy M, Campbell I, Stone P, Fedorchuk C, Wijayawardana S, Easley K - PLoS ONE (2011)

Bottom Line: Two practicing clinicians conducted the measures on 100 subjects.Mean bilateral paraspinal skin temperature was 89.78° F and ranged from 88.77° F to 91.43° F.Concordance correlation coefficients (CCCs) ranged from 0.783 to 0.859 with tight confidence intervals indicating robust estimates of these quantities.

View Article: PubMed Central - PubMed

Affiliation: Division of Clinical Sciences, Life University College of Chiropractic, Marietta, Georgia, United States of America. matthewmccoy@comcast.net

ABSTRACT

Objective: The objective of this study was to evaluate the intra-examiner and inter-examiner reproducibility of paraspinal thermography using an infrared scanner.

Materials and methods: The thermal functions of a commercially available infrared scanner (Insight Subluxation Station®) were evaluated for clinical reliability. Two practicing clinicians conducted the measures on 100 subjects. Intra class correlation coefficients (ICCs) and concordance correlation coefficients (CCCs) were calculated from the collected data.

Results: Mean bilateral paraspinal skin temperature was 89.78° F and ranged from 88.77° F to 91.43° F. Intra class correlation coefficients (ICCs) for agreement and consistency ranged from 0.959 to 0.976. Concordance correlation coefficients (CCCs) ranged from 0.783 to 0.859 with tight confidence intervals indicating robust estimates of these quantities.

Conclusion: This study revealed excellent intra-examiner and inter-examiner reproducibility of paraspinal thermography using a commercially available unit.

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Related in: MedlinePlus

Bland-Altman Plot for Examiner B (Trial 1) vs. Examiner B (Trial 2).Figure 5 corresponds to intra – examiner agreement and shows that only 4.6% of Examiner B's readings fell outside the 95% agreement limits.
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pone-0016535-g005: Bland-Altman Plot for Examiner B (Trial 1) vs. Examiner B (Trial 2).Figure 5 corresponds to intra – examiner agreement and shows that only 4.6% of Examiner B's readings fell outside the 95% agreement limits.

Mentions: Figures 4, 5 and 6 show the Bland – Altman mean difference plots. A common approach in agreement studies (useful when there are only two examiners) is to calculate the mean of the differences between the two examiners. The confidence limits around the mean provide insight into how much random variation may be influencing the ratings. If the examiners tend to agree, the mean will be near zero. If one examiner is usually higher than the other by a consistent amount, the mean will be far from zero, but the confidence interval will be narrow. If the examiners tend to disagree, but without a consistent pattern of one rating higher than the other, the mean will be near zero but the confidence interval will be wide.


Intra-examiner and inter-examiner reproducibility of paraspinal thermography.

McCoy M, Campbell I, Stone P, Fedorchuk C, Wijayawardana S, Easley K - PLoS ONE (2011)

Bland-Altman Plot for Examiner B (Trial 1) vs. Examiner B (Trial 2).Figure 5 corresponds to intra – examiner agreement and shows that only 4.6% of Examiner B's readings fell outside the 95% agreement limits.
© Copyright Policy
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3037936&req=5

pone-0016535-g005: Bland-Altman Plot for Examiner B (Trial 1) vs. Examiner B (Trial 2).Figure 5 corresponds to intra – examiner agreement and shows that only 4.6% of Examiner B's readings fell outside the 95% agreement limits.
Mentions: Figures 4, 5 and 6 show the Bland – Altman mean difference plots. A common approach in agreement studies (useful when there are only two examiners) is to calculate the mean of the differences between the two examiners. The confidence limits around the mean provide insight into how much random variation may be influencing the ratings. If the examiners tend to agree, the mean will be near zero. If one examiner is usually higher than the other by a consistent amount, the mean will be far from zero, but the confidence interval will be narrow. If the examiners tend to disagree, but without a consistent pattern of one rating higher than the other, the mean will be near zero but the confidence interval will be wide.

Bottom Line: Two practicing clinicians conducted the measures on 100 subjects.Mean bilateral paraspinal skin temperature was 89.78° F and ranged from 88.77° F to 91.43° F.Concordance correlation coefficients (CCCs) ranged from 0.783 to 0.859 with tight confidence intervals indicating robust estimates of these quantities.

View Article: PubMed Central - PubMed

Affiliation: Division of Clinical Sciences, Life University College of Chiropractic, Marietta, Georgia, United States of America. matthewmccoy@comcast.net

ABSTRACT

Objective: The objective of this study was to evaluate the intra-examiner and inter-examiner reproducibility of paraspinal thermography using an infrared scanner.

Materials and methods: The thermal functions of a commercially available infrared scanner (Insight Subluxation Station®) were evaluated for clinical reliability. Two practicing clinicians conducted the measures on 100 subjects. Intra class correlation coefficients (ICCs) and concordance correlation coefficients (CCCs) were calculated from the collected data.

Results: Mean bilateral paraspinal skin temperature was 89.78° F and ranged from 88.77° F to 91.43° F. Intra class correlation coefficients (ICCs) for agreement and consistency ranged from 0.959 to 0.976. Concordance correlation coefficients (CCCs) ranged from 0.783 to 0.859 with tight confidence intervals indicating robust estimates of these quantities.

Conclusion: This study revealed excellent intra-examiner and inter-examiner reproducibility of paraspinal thermography using a commercially available unit.

Show MeSH
Related in: MedlinePlus