Table 2

Keyness values for terms and words at the extremes in the professional dataset

Word	Professional (study) database		Public (reference) database		Keyness values
Word	Frequency of word	% of overall words (238 782)	Frequency of word	% of overall words (717 517)	Keyness values
Clinical	1359	0.52	642	0.08	+1587.79
Cytology	557	0.21	1		+1510.69
Core	613	0.23	66		+1283.80
Practice	674	0.26	116	0.02	+1254.14
Imaging	651	0.25	109	0.01	+1221.26
Excluded	436	0.17	4		+1150.15
Exclusion	413	0.16	2		+1106.23
Guidelines	644	0.24	147	0.02	+1089.72
Carcinoma	576	0.22	99	0.01	+1072.08
Biopsy	829	0.31	341	0.04	+1057.82
Patients	1038	0.39	596	0.08	+1047.95
Family	169	0.06	1625	0.21	−297.88
Exercise	6		673	0.09	−343.43
Researchers	8		701	0.09	−346.40
Cancer	3758	1.43	15 404	2	–372.39
Pain	62	0.02	1191	0.15	−376.34
Talk	10		797	0.10	−388.31
Doctor	48	0.02	1215	0.16	−437.75
Reconstruction	69	0.03	1397	0.18	−453.89
Feel	48	0.02	1368	0.18	−516.62
Find	22		1354	0.18	−630.94
People	40	0.02	1613	0.21	−681.49
Help	40	0.02	2301	0.30	−1058.58