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Formulae for calculating the sensitivity, specificity, precision, and accuracy of searches for detecting age-specific articles*
| Hand Search | ||
| Detection of Search Terms | Meets Criteria | Does Not Meet Criteria |
| Detected | a | b |
| Not detected | c | d |
| a+c | b+d | |
*Sensitivity = a/(a + c); precision = a/(a + b); specificity = d/(b + d); accuracy = (a + d)/(a +b + c + d). All articles classified during the manual review of the literature, n = (a + b + c + d).
