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. Author manuscript; available in PMC: 2012 Dec 11.
Published in final edited form as: Ear Hear. 2009 Dec;30(6):635–652. doi: 10.1097/AUD.0b013e3181b61cdc

Table I.

Performance of 1-kHz and WB test predictors in classifying DPOAE pass and refer test results for both Day-1 and Day-2 responses. Measures of test performance include AROC and SYM for each predictor, with 95% CI in parentheses.

Day 1 Day 2
Predictor AROC (95% CI) SYM (95% CI) AROC (95% CI) SYM (95% CI)
ΔYPos* 0.75 (0.68–0.80) 0.69 (0.62–0.73) 0.54 (0.36–0.71) 0.50 (0.36–0.67)
ΔYNeg 0.69 (0.61–0.75) 0.64 (0.58–0.71) 0.62 (0.42–0.79) 0.58 (0.28–0.73)
ΔYSlope 0.73 (0.67–0.79) 0.71 (0.62–0.77) 0.52 (0.34–0.70) 0.50 (0.29–0.66)
aEA 0.86 (0.80–0.89) 0.78 (0.70–0.83) 0.67 (0.45–0.83) 0.64 (0.42–0.81)
|aY| 0.86 (0.81–0.90) 0.76 (0.71–0.81) 0.74 (0.51–0.89) 0.64 (0.53–0.86)
aYϕ* 0.87 (0.82–0.91) 0.78 (0.72–0.82) 0.72 (0.53–0.86) 0.64 (0.41–0.84)
tEA 0.84 (0.78–0.88) 0.76 (0.70–0.82) 0.64 (0.43–0.81) 0.64 (0.40–0.79)
|tY| 0.82 (0.76–0.87) 0.75 (0.69–0.80) 0.66 (0.45–0.82) 0.64 (0.36–0.80)
tYϕ* 0.85 (0.80–0.89) 0.75 (0.68–0.80) 0.69 (0.50–0.84) 0.65 (0.39–0.79)

Asterisks (*) indicate predictors with the highest AROC on Day 1 and within a particular test class (i.e., 1-kHz, aATF or tATF). All Day-1 predictors exceeded chance performance (lower boundary of AROC and SYM CIs >0.50). Day-2 predictors not exceeding chance performance are identified with bold font.