From: Identifying observational studies of surgical interventions in MEDLINE and EMBASE
MEDLINE | EMBASE | ||
---|---|---|---|
Precision | Specificity | Precision | Specificity |
Comparative studies/ Follow-up studies/ | Comparative studies/ Follow-up studies/ Time factors/ | Controlled study/ Treatment outcome/ Major clinical study/ | Controlled study/ Treatment outcome/ Major clinical study/ Clinical trial/ |
(preoperat$ or pre operat$).mp | (preoperat$ or pre operat$).mp | (preoperat$ or pre operat$).mp | |
chang$.tw | chang$.tw | chang$.tw | chang$.tw |
evaluat$.tw | evaluat$.tw | evaluat$.tw | evaluat$.tw |
reviewed.tw | reviewed.tw | reviewed.tw | reviewed.tw |
prospective$.tw | prospective$.tw | ||
retrospective$.tw | retrospective$.tw | ||
baseline.tw | baseline.tw | baseline.tw | |
cohort.tw | cohort.tw | ||
consecutive$.tw | |||
(compare$ or compara$).tw | (compare$ or compara$).tw | (compare$ or compara$).tw | |
case series.tw |