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ND not described, n sample size, RR referral rate, WB well baby, B between-subject design, W within-subject design
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aRisk ratios and confidence intervals for paired data (i.e., within-subject studies) could only be calculated for two studies that had reported data for infants who referred with both TEOAE and aABR, TEOAE but not aABR, and aABR but not TEOAE. Error bars that cross the axis at 1.0 indicate no significant difference
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b24-h minimum for aABR and 48-h minimum for OAE. †24 -h minimum for vaginal births and 48-h minimum for cesarean section