Testicular cancer risk according to county of birth and county of diagnosis in Norway, 1958–2007

Figures & data

Figure 1. Average annual incidence rate of testicular germ cell cancer (per 100 000 person-years, age-adjusted using the world standard [23]) in Norway by county, 1998–2007 [24], with corresponding population size (2007).

Table I. Number of new testicular germ cell cancer and adjusted annual average incidence rates (per 100 000 person-years, age-adjusted using the world standard [23]) in Norway and each county, 1968–2007, and in 10-year intervals, 1958–2007.

	Years of diagnosis
	1958–1967	1968–1977	1978–1987	1988–1997	1998–2007	1968–2007
County of diagnosis	Number of new cases/adjusted average incidence rates						Increase in IR (%) and 95% CI*
Norway (total)	604/3.3	834/4.3	1293/6.0	1877/8.0	2522/10.5	6526/7.3	34 (33–36)
Reference population**	187/3.5	261/4.4	420/6.4	574/7.7	811/10.0	2066/7.3	30 (27–34)
Ostfold	27/2.8	44/4.2	60/5.0	108/8.6	146/11.2	358/7.3	41 (36–47)
Akershus	41/2.9	86/4.8	130/6.3	179/7.8	254/10.3	649/7.4	35 (29–41)
Oslo	88/3.8	105/4.4	162/6.7	205/7.3	297/9.0	769/7.0	25 (19–31)
Hedmark	25/2.8	25/2.6	37/4.2	45/4.5	88/9.8	195/5.3	36 (20–52)
Oppland	32/4.1	40/4.6	52/5.6	91/9.2	112/12.7	295/8.1	34 (26–43)
Buskerud	26/2.7	42/4.3	63/5.7	89/7.2	102/8.3	296/6.4	31 (25–38)
Vestfold	24/2.9	37/4.1	56/5.8	85/8.0	119/11.1	297/7.4	40 (40–41)
Telemark	29/4.2	39/5.2	49/6.4	64/7.6	83/10.0	235/7.2	24 (22–25)
Aust-Agder	11/2.8	12/3.0	24/5.0	36/7.2	44/8.1	116/6.1	35 (27–43)
Vest-Agder	23/4.2	24/3.8	50/7.1	62/8.0	91/11.0	227/7.7	31 (21–41)
Rogaland	35/2.9	50/3.7	136/8.0	176/9.2	239/11.4	601/8.6	44 (32–56)
Hordaland	58/3.6	70/3.8	128/6.2	190/8.2	260/10.8	648/7.5	35 (28–41)
Sogn og Fjordane	16/3.0	25/5.2	27/4.9	44/8.0	43/7.8	139/6.5	27 (15–38)
More og Romsdal	33/3.3	46/4.1	72/5.9	132/10.4	168/13.4	418/8.5	45 (39–51)
Sor-Trondelag	35/3.0	61/5.3	82/6.3	99/7.0	154/11.0	396/7.4	33 (24–42)
Nord-Trondelag	25/4.4	23/4.1	34/5.1	57/8.4	87/13.7	201/7.9	35 (21–50)
Nordland	48/3.8	56/4.6	64/5.0	102/7.8	117/9.6	339/6.7	27 (20–33)
Troms	22/3.4	34/4.7	46/5.5	84/9.7	79/9.7	243/7.4	33 (24–41)
Finnmark	6/1.5	15/3.6	21/4.6	29/6.3	39/10.6	104/6.1	57 (44–69)

*Average increase in incidence rate (IR) between each 10-year period, as percentage (%) and 95% confidence interval (CI).

**Number of new cases in the counties of Oslo, Akershus and Hordaland combined.

Table II. Annual average incidence rates of testicular germ cell cancer (per 100 000 person-years, age-adjusted using the world standard [23]) in Norway, 1958–2007, and in 10-year intervals, stratified by age.

Age (years)	1958–1967	1968–1977	1978–1987	1988–1997	1998–2007	1958–2007	Increase in IR (%) and 95% CI*
0–14	0.2	0.3	0.3	0.5	0.5	0.4	24.5 (18.4–30.6)
15–24	2.4	4.4	7.9	11	13.2	7.8	54.8 (47.5–62.1)
25–34	9.7	9.5	15.6	22.6	29.5	18.4	36.3 (31.6–41.0)
35–44	7.1	9.8	11	13.3	20.3	12.6	27.3 (25.6–29.0)
45–54	3.3	5.4	6.2	7.1	9.5	6.5	26.8 (24.1–29.5)
55+	1.9	2	2	2.8	2.8	2.3	12.3 (10.8–13.8)
All (crude)	3.3	4.2	6.3	8.8	11.1	7.0	37.0 (35.0–39.0)
All (adjusted)	3.3	4.3	6	8	10.5	6.6	34.0 (32.5–35.5)

*Average increase in incidence rate (IR) between each 10-year period, as percentage (%) and 95% confidence interval (CI).

Figure 2. Incidence rate of testicular germ cell cancer (per 100 000 person-years, age-adjusted using the world standard [23]) in Norway, 1958–2007, by age and histology.

Table III. Relative risk of testicular germ cell cancer (TGCC), estimated by Poisson regression analysis on a county level based on the mother's county of residence at the time of the son's birth, adjusted for age at diagnosis.

Mother's county of residence at son's birth	Number of male births 1967–2007	Incident cases of TGCC	Relative risk estimates and 95% CI*
Reference population**	373 171	527	1 (referent)
Ostfold	58 660	116	1.33 (1.08–1.62)
Hedmark	41 711	64	1.01 (0.78–1.31)
Oppland	42 794	88	1.34 (1.07–1.68)
Buskerud	55 763	77	0.95 (0.74–1.20)
Vestfold	48 794	88	1.23 (0.98–1.54)
Telemark	40 150	75	1.22 (0.96–1.55)
Aust-Agder	24 986	43	1.17 (0.85–1.59)
Vest-Agder	41 479	69	1.13 (0.88–1.46)
Rogaland	106 126	168	1.12 (0.94–1.33)
Sogn og Fjordane	29 834	48	1.07 (0.79–1.43)
More og Romsdal	66 243	145	1.43 (1.19–1.71)
Sor-Trondelag	72 010	131	1.22 (1.01–1.48)
Nord-Trondelag	34 314	63	1.20 (0.93–1.56)
Nordland	67 025	115	1.09 (0.89–1.39)
Troms	44 851	78	1.14 (0.90–1.44)
Finnmark	24 910	48	1.22 (0.91–1.64)
TOTAL	1172 821	1943

*Regression coefficients from the Poisson regression analysis and 95% confidence interval (CI).

**The counties of Oslo, Akershus and Hordaland combined.

Doll R, Payne P, Waterhouse JAH. Cancer incidence in five continents. Vol 1, Geneva, UICC. Berlin: Springer; 1966.

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Modified from original file on Wikipedia. Available from: http://no.wikipedia.org/wiki/Fil:Norway_counties.svg

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