Table 5. Growth of frequently used keywords (second column of table 1).

ID	Keyword	1993–1997 (%)	1998–2002 (%)	2003–2007 (%)	2008–2012 (%)	Relative growth (%)	Significance(z-score)
1	Body mass index	4.79	8.56	9.88	9.44	89.64	0.33
2	Insulin resistance	6.19	5.75	6.40	5.11	-15.95	0.95
3	Diabetes	4.40	5.43	5.52	5.34	21.77	0.76
4	Metabolic syndrome	0.27	1.16	5.35	5.96	701.42	0.00
5	Children	2.31	3.74	4.10	5.02	93.85	0.31
6	Hypertension	5.14	5.05	3.93	3.23	-41.63	0.76
7	Type 2 diabetes	4.25	4.13	3.82	3.54	-17.72	0.94
8	Morbid obesity	4.01	4.80	6.16	2.23	-15.75	0.96
9	Weight loss	5.19	4.83	3.97	3.10	-46.58	0.73
10	Leptin	2.56	7.11	3.87	2.42	95.14	0.31
11	Bariatric surgery	0.69	2.39	4.35	3.45	308.58	0.00
12	Adolescents	1.30	1.97	3.22	3.85	134.29	0.16
13	Risk factors	3.56	3.57	3.38	3.02	-15.93	0.95
14	Physical activity	1.45	2.13	2.90	3.10	90.01	0.33
15	Adipose tissue	2.85	3.02	2.32	2.43	-12.42	0.98
16	Insulin	6.98	4.52	2.20	1.39	-123.22	0.27
17	Body composition	4.15	3.35	2.50	1.72	-75.90	0.52
18	Epidemiology	1.97	1.97	2.19	2.19	11.33	0.83
19	Exercise	2.51	2.46	1.93	2.00	-19.89	0.93
20	Inflammation	0.00	0.37	1.66	2.63	406.42	0.00