Updated incidence trends in cardia and non-cardia gastric adenocarcinoma in Sweden

Figures & data

Table 1. The distribution of patients diagnosed with cardia or non-cardia gastric adenocarcinoma in Sweden from 1970 to 2014.

	Gastric adenocarcinoma
Patients	Cardia Number (%)	Non-cardia Number (%)
All	6918 (100)	43,345 (100)
Sex
Men	5288 (76)	26,011 (60)
Women	1630 (24)	17,334 (40)
Age (years)
50–69	3087 (45)	15,142 (35)
≥70	3831 (55)	28,203 (65)
Sex and age (years)
Men aged 50–69	2503 (36)	9588 (22)
Men aged ≥70	2785 (40)	16,423 (38)
Women aged 50–69	584 (8)	5554 (13)
Women aged ≥70	1046 (15)	11,780 (27)

Figure 1. Age-standardised incidence in gastric cardia adenocarcinoma in 1970–2014 in Sweden.

Table 2. Overall and sex-specific change points in the incidence time trends of cardia and non-cardia gastric adenocarcinoma in Sweden with annual percent changes and 95% confidence intervals (CI) before and after change points.

Gastric site	All			Men			Women
	Patients (n)	Calendar period	Annual percent change (95% CI)	Patients (n)	Calendar period	Annual percent change (95% CI)	Patients (n)	Calendar period	Annual percent change(95% CI)
Cardia	6918	1970–1989	4.1 (3.2 to 4.9)	5288	1970–1990	4.1 (3.3 to 5.0)	1630	1970–1988	3.9 (1.9 to 6.0)
		1989–2014	−0.3 (−0.7 to 0.2)		1990–2014	−0.7 (−1.2 to −0.2)		1988–2014	0.2 (0.7 to 1.0)
Non-cardia	43,345	1970–1973	1.1 (−3.1 to 5.4)	26,011	1970–1989	−2.6 (−3.0 to −2.2)	17,334	1970–1980	−3.9 (−4.9 to −2.8)
		1973–1976	−7.6 (−15.5 to 1.0)		1989–2014	−5.0 (−5.4 to −4.7)		1980–1984	−0.1 (−7.6 to 8.0)
		1976–1984	−1.3 (−2.5 to 0.0)					1984–2014	−4.1 (−4.4 to −3.7)
		1984–2014	−4.4 (−4.6 to −4.2)

Table 3. Age-group specific change points in the incidence time trends of cardia and non-cardia gastric adenocarcinoma in Sweden with annual percent changes and 95% confidence intervals (CI) before and after change points.

Gastric site	Age 50–69 years			Age ≥70 years
	Patients (n)	Calendar period	Annual percent change (95% CI)	Patients (n)	Calendar period	Annual percent change (95% CI)
Cardia	3087	1970–1979	10.1 (5.8 to 14.6)	3831	1970–1994	3.3 (2.4 to 4.1)
		1979–2014	0.5 (0.1 to 0.9)		1994–2014	−1.2 (−2.1 to −0.2)
Non-cardia	15,142	1970–1989	−2.4 (−2.8 to −2.0)	28,203	1970–1973	1.8 (−3.2 to 7.1)
		1989–1997	−8.1 (−10.3 to −5.8)		1973–1976	−8.9 (−18.2 to 1.4)
		1997–2014	−3.1 (−4.0 to −2.2)		1976–1985	−0.8 (−2.1 to 0.4)
					1985–2014	−4.2 (−4.5 to −4.0)

Table 4. Sex and age-group specific change points in the incidence time trends of cardia and non-cardia gastric adenocarcinoma in Sweden with annual percent changes and 95% confidence intervals (CI) before and after change points.

Gastric site	Men aged 50–69 years			Men aged ≥70 years
	Patients (n)	Calendar period	Annual percent change (95% CI)	Patients (n)	Calendar period	Annual percent change (95% CI)
Cardia	2503	1970–1983	6.8 (4.1 to 9.6)	2785	1970–1994	3.4 (2.6 to 4.3)
		1983–2014	−0.1 (−0.6 to 0.5)		1994–2014	−1.4 (−2.3 to −0.4)
Non-cardia	9588	1970–1988	−2.7 (−3.2 to −2.1)	16,423	1970–1989	−2.1 (−2.6 to −1.7)
		1988–1998	−7.6 (−9.7 to −5.4)		1989–2014	−4.8 (−5.2 to −4.4)
		1998–2014	−3.5 (−4.8 to −2.1)
	Women aged 50–69 years			Women aged ≥70 years
Gastric site	Patients (n)	Calendar period	Annual percent change (95% CI)	Patients (n)	Calendar period	Annual percent change (95% CI)
Cardia	584	1970–1978	12.3 (2.8 to 22.6)	1046	1970–1989	4.3 (1.9 to 6.7)
		1978–2005	0.3 (−0.9 to 1.4)		1989–2014	−0.9 (−2.2 to 0.4)
		2005–2014	6.6 (1.9 to 11.5)
Non-cardia	5554	1970–1990	−1.9 (−2.5 to −1.2)	11,780	1970–1973	0.5 (−5.5 to 6.8)
		1990–1997	−8.9 (−13.4 to −3.7)		1973–1976	−10.6 (−21.6 to 2.0)
		1997–2014	−2.2 (−3.7 to −0.8)		1976–1984	−0.6 (−2.5 to 1.4)
					1984–2014	−3.8 (−4.1 to −3.5)

Figure 2. Age-standardised incidence in gastric non-cardia adenocarcinoma in 1970–2014 in Sweden.