Table 3.

Top 20 Words Used in Article Headlines by Disease Names

	Schizophrenia			Depressive Disorder			Diabetes Mellitus
	Total (n = 6361)	Old Name (n = 1768)	New Name (n = 4593)	Total (n = 13617)	Before 2001 (n = 2735)	After 2002 (n = 10882)	Total (n = 32047)	Before 2001 (n = 11365)	After 2002 (n = 20682)
Totala	72 823	19708	53115	149749	28346	121403	341759	118475	223284
Target termb	540 (8.5%)	103 (5.1%)	437 (9.0%)	2312 (17.0%)	354 (12.9%)	1,958 (18.0%)	4,132 (12.9%)	1,424 (12.5%)	2,708 (13.1%)
Ranking, n c
1	Mental, 1214	Mental, 414	Mental, 800	Suicide, 2409	Suicide, 385	Suicide, 2024	Health, 2967	Health, 1098	Medical care, 1911
2	Distinct court, 893	Case (affair), 379	Distinct court, 692	Mental, 986	Mental, 255	Distinct court, 821	Medical care, 2824	Medical care, 913	Health, 1869
3	Judgement, 782	Defendant, 228	Judgement, 611	Heart, 959	Heart, 223	Heart, 736	Hospital, 2209	Treatment, 554	Hospital, 1690
4	Disability, 740	Disability, 203	Disability, 537	Distinct court, 938	Overwork, 175	Mental, 731	Patient, 1670	Patient, 521	Patient, 1149
5	Defendant, 726	Distinct court, 201	Defendant, 498	Judgement, 636	Medical care, 257	Judgement, 550	Treatment, 1536	Hospital, 519	Treatment, 982
6	Case (affair), 691	Homicide, 175	Killing, 455	Medical care, 590	Stress, 147	Consultation, 461	Lives, 1248	Lives, 379	Lives, 869
7	Killing, 520	Judgement, 171	Imprisonment, 439	Disability, 552	Health, 142	Hospital, 456	Prevention, 1173	Medicine, 377	Prevention, 804
8	Imprisonment, 504	Stabbing, 157	Justice, 371	Hospital, 548	Disability, 133	Medical care, 433	Information, 1009	Prevention, 369	Information, 697
9	Homicide, 502	Appraisal, 146	Homicide, 327	Consultation, 543	Lives, 123	Killing, 423	Medicine, 897	Transplant, 316	New type, 604
10	Responsibility, 397	Responsibility, 138	Case (affair), 312	Overwork, 503	Distinct court, 117	Disability, 419	Transplant, 857	Decease, 315	Habit, 576
11	Public trial, 392	Capability, 119	Public trial, 277	Authorization, 493	Hospital, 92	Authorization, 406	Research, 805	Information, 312	Death, 549
12	Justice, 382	Public trial, 115	Responsibility, 259	Killing, 469	Death, 91	Action, 394	Habit, 771	Lifestyle-related diseases, 278	Transplant, 541
13	Capability, 361	Succession, 115	Medical care, 255	Health, 438	Authorization, 87	Prevention, 376	Death, 757	Research, 268	Research, 537
14	Hospital, 357	Hospital, 103	Hospital, 254	Action, 408	Judgement, 86	Imprisonment, 366	Medical doctor, 718	Gene, 235	Medicine, 520
15	Medical care, 354	Suspicion, 100	Capability, 242	Prevention, 403	Consultation, 82	Bereaved person, 334	Disease, 647	Medical doctor, 233	Medical doctor, 485
16	Appraisal, 341	Medical care, 99	Fatal stabbing, 233	Imprisonment, 392	Patient, 78	Overwork, 328	New type, 609	Obesity, 226	Metabolic, 443
17	Stabbing, 298	Patient, 93	Accept, 208	Bereaved person, 384	Treatment, 78	Support, 326	Obesity, 591	Old age, 222	Disease, 438
18	Heart, 293	Prosecution, 93	Heart, 203	Patient, 382	Medicine, 77	Lawsuit, 311	Examination, 583	Food, 219	Food, 432
19	Suspicion, 286	Heart, 90	Appraisal, 195	Workman’s compensation, 380	Notice (guide), 74	Workman’s compensation, 308	Exercise, 567	Examination, 218	Blood draw, 424
20	Patient, 283	x d, 84	Innocence, 194	Lawsuit, 367	Workman’s compensation, 72	Patient, 304	Lecture, 565	Nursing care, 210	Exercise, 381

Note: ^aTotal meaning words extracted in the headlines using a text data mining.

^bThe number and rate of the articles using each target term itself in headline. In depressive disorder, the numbers of “utsu” (depression) and “utsu-byou” (depressive disorder), and in diabetes mellitus, those of “tounyou” (glycosuria) and “tounyou-byou” (diabetes mellitus) were counted.

^cThe word in English and the number of the articles using the word on headlines. supplementary table S4 shows the terms in Japanese language.

^dThis term could be associated with a specific case and is represented by “x.”