Table 1

Patient/tumor characteristics by mammography detection (n = 6074)

Variable

MgD = no*

MgD = yes

Chi square

p value


N (%)

N (%)


(n = 2884)

(n = 3190)


Age

Row %

Row %

21–39

427 (88.4%)

56 (11.6%)

558.99

p < .001

40–49

868 (60.0%)

578 (40.0%)

50–59

668 (40.1%)

996 (59.9%)

60–69

449 (36.3%)

787 (63.7%)

70–94

472 (37.9%)

773 (62.1%)

Race

White

2448 (46.1%)

2866 (53.9%)

35.33

p < .001

Asian

232 (56.9%)

176 (43.1%)

Black

94 (59.1%)

65 (40.9%)

Other

60 (61.9%)

37 (38.1%)

Diagnosis Year

1990

120 (60.9%)

77 (39.1 %)

98.22

p < .001

1991

137 (54.8%)

113 (45.2%)

1992

132 (53.4%)

115 (46.6%)

1993

154 (55.8%)

122 (44.2%)

1994

162 (54.0%)

138 (46.0%)

1995

157 (52.7%)

141 (47.3%)

1996

168 (52.7%)

151 (47.3%)

1997

209 (54.0%)

178 (46.0%)

1998

230 (53.4%)

201 (46.6%)

1999

193 (44.0%)

246 (56.0%)

2000

191 (42.4%)

260 (57.6%)

2001

166 (39.0%)

260 (61.0%)

2002

190 (41.3%)

270 (58.7%)

2003

210 (42.2%)

288 (57.8%)

2004

250 (42.6%)

337 (57.4%)

2005

215 (42.3%)

293 (57.7%)

TNM stage

0

88 (12.1%)

641 (87.9%)

1269.80

p < .001

I

871 (33.1%)

1758 (66.9%)

II

1161 (64.5%)

640 (35.5%)

III

638 (82.5%)

135 (17.5%)

IV

126 (88.7%)

16 (11.3%)


*combined patient and physician detected breast cancer cases

Malmgren et al. BMC Cancer 2008 8:131   doi:10.1186/1471-2407-8-131

Open Data