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Table 2 Text words after analysis with the Text Mining Package in R (extract)

From: Routine development of objectively derived search strategies

Terms Frequency
development set
Frequency
population set
Sensitivity
development set
Sensitivity
population set
Patients 25 1,419 1.0000 0.1976
Results 25 1,425 1.0000 0.1985
Cancer 24 361 0.9600 0.0503
Methods 24 335 0.9600 0.0467
Prostate 24 49 0.9600 0.0068
Treatment 21 941 0.8400 0.1311
External 20 86 0.8000 0.0120
Therapy 20 342 0.8000 0.0476
Treated 20 371 0.8000 0.0517
Beam 19 32 0.7600 0.0045
Brachytherapy 19 4 0.7600 0.0006
Compared 17 972 0.6800 0.1354
Conclusions 17 41 0.6800 0.0057
Follow 16 49 0.6400 0.0068
Prostatectomy 16 11 0.6400 0.0015
Radical 16 52 0.6400 0.0072
Respectively 16 72 0.6400 0.0100
Risk 16 584 0.6400 0.0813
Specific 16 488 0.6400 0.0680
Localized 15 66 0.6000 0.0092
Months 15 259 0.6000 0.0361
Purpose 15 192 0.6000 0.0267
Radiation 15 68 0.6000 0.0095
Analysis 14 853 0.5600 0.1188
Radiotherapy 14 30 0.5600 0.0042
Rates 14 260 0.5600 0.0362
Score 14 115 0.5600 0.0160
Significantly 14 873 0.5600 0.1216
Biochemical 13 87 0.5200 0.0121
Gleason 13 4 0.5200 0.0006
Materials 13 162 0.5200 0.0226
Antigen 12 76 0.4800 0.0106
Time 12 576 0.4800 0.0802
Using 12 1,680 0.4800 0.2340