Table 1
Table 1. Comparisons between Search Strings Used to Retrieve Citations in Process, as Supplied by Publisher or Not-Indexed-for-MEDLINE, Each of Them Joined onto the Four Main Topics (PubMed Clinical Queries Vs. Modified Search String—see at the Bottom for Search String Syntax).
| String A | String B | Var(%) | |||||
|---|---|---|---|---|---|---|---|
| Total retrievied citations | Number retrievied RCTs (RCTA) | Precision | Total retrievied citations | Number retrievied RCTs (RCTB) | precision | ||
| Hypertension | 62 | 44 | 0.71 | 74 | 52 | 0.70 | 18.2 |
| Diabetes | 95 | 71 | 0.75 | 109 | 80 | 0.73 | 12.7 |
| Heart failure | 45 | 32 | 0.71 | 51 | 36 | 0.71 | 12.5 |
| Hepatitis | 27 | 22 | 0.81 | 30 | 24 | 0.80 | 9.1 |
RCTs = Randomized Controlled Trials
Var % = row variation percentage calculated according to the following formula: {[(RCTB/RCTA) × 100] − 100}
A: (randomized controlled trial[Publication Type] OR (randomized[Title/Abstract] AND controlled[Title/Abstract] AND trial[Title/Abstract])) AND (“Premedline”[sb] OR publisher[sb] OR pubmednotmedline[sb])
B: (randomized controlled trial[Publication Type] OR ((randomized[Title/Abstract] OR randomised[Title/Abstract]) AND controlled[Title/Abstract] AND trial[Title/Abstract])) AND (“Premedline”[sb] OR publisher[sb] OR pubmednotmedline[sb])