Worldwide Increasing Incidence of Thyroid Cancer: Update on Epidemiology and Risk Factors

Table 1

Increase of thyroid cancer incidence rate in different countries.

Country	Source	Years		Variation of incidence (APC)
				Females	Males
Australia	[27] (Patients aged 15–30 years)	1982; 1982; 2000	2007; 2000; 2007	—; 2.0; 13.8	4.0; —; —
Canada	[28]; [29]	1970/72; 2002	1994/96; 2008	3.5*; 7.3	3.2*; 8.4
China (Shanghai)	[30]	1983; 1983	2000; 2003	—; 4.9	2.6; —
Denmark	[2]	1973/1977	1998/2002	81.3%^‡	20.0%^‡
Finland	[2]	1973/1977	1998/2002	62.8%^‡	29.4%^‡
France	[31]	1983	2000	8.98	8.13
Israel-Jews	[2]	1973/1977	1998/2002	95.2%^‡	34.6%^‡
Italy	[4]	1991/95	2001/05	145%^‡	127%^‡
Japan	[2]	1973/1977	1998/2002	85.7%^‡	52.4%^‡
Spain	[10] (Only PTCs)	1978	2001	9.4§	2.6§
Switzerland	[2]	1973/1977	1998/2002	85.7%^‡	5.3%^‡
UK	http://info.cancerresearchuk.org/cancerstats/	1993	2008	2.3	0.6
USA	[12]; http://seer.cancer.gov/statfacts/html/thyro.html	1998; 1997	2005; 2009	7.0; 7.0	6.3; —

APC: annual percent change.
*Average annual percent increase.
^‡Percent temporal change (% increase) in the indicated period.
§Incidence increase in the indicated period.