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. Author manuscript; available in PMC: 2012 Aug 1.
Published in final edited form as: Anesthesiology. 2011 Aug;115(2):322–333. doi: 10.1097/ALN.0b013e31821d6c81

Table 4.

Associations between Anesthesia Claim and Chart Times (N = 14,369)

Value 95% CI P-value
Pearson Correlation 0.87 0.84, 0.91 < 0.0001
Spearman Correlation 0.94 0.94, 0.95 < 0.0001
Kendall Correlation (τ) 0.85 0.85, 0.86 < 0.0001
Probability of Concordance* 0.93 0.92, 0.93 < 0.0001
Median Absolute Difference (min) 5.0 5.0, 5.5
*

Probability of Concordance = (1 + Kendall τ)/2