Using text mining for study identification in systematic reviews: a systematic review of current approaches

Table 2 The number of studies implicitly or explicitly addressing screening workload problems (n = 44)

Workload reduction approach	Number of studies
Reducing number needed to screen	30
Text mining as a second screener	6
Increasing the rate (speed) of screening	7
Improving workflow through screening prioritisation	12

Note. Some studies adopted more than one approach to workload reduction, so column total is greater than 44 studies.