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Table 1 Patient/tumor characteristics by mammography detection (n = 6074)

From: Increase in mammography detected breast cancer over time at a community based regional cancer center: a longitudinal cohort study 1990–2005

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%)

  
  1. *combined patient and physician detected breast cancer cases