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Table 4 Space-time analyses. Age-adjusted female invasive breast cancer statistics for space-time analyses of Massachusetts, 1988–1997. aObserved count. bRelative Risk. cArea is shifted east compared to the purely spatial analyses. dArea is significant for 1993–1997 and has dramatically increased geographic area. eArea is significant for 1988–1993 only. fGeographic area increased from the age-adjusted analysis. gGeographic area slightly decreased from the age-adjusted analysis. *High or low area was not significant for this analysis.

From: The geographic distribution of breast cancer incidence in Massachusetts 1988 to 1997, adjusted for covariates

  

Age-adjusted only

Adjusted for Urban/Rural Status

 

Time Frame

Obsa

RRb

p-value

Obsa

RRb

p-value

High

       

1

91–97

3639

1.16

<0.0001

3639

1.16

<0.0001

3

89–96

51

3.05

<0.0001

51

3.04

0.0002

4

88–97

126

1.75

0.0078

126

1.74

0.0127

5

88–97

276

1.44

0.0091

276

1.43

0.0154

6

92–95

492

1.35

0.0004

492

1.35

0.0007

7

88–95

*

*

*

*

*

*

8

92–97

841c

1.23

0.0034

841c

1.23

0.0085

11

93–97

1178

1.28

<0.0001

1178

1.28

<0.0001

Low

       

A

88–97

1068

0.74

<0.0001

1068

0.74

<0.0001

B

88–94

1119

0.81

<0.0001

1119

0.81

<0.0001

C

88–96

1951

0.86

<0.0001

1951

0.87

0.0002

D

88–95

450

0.77

0.0069

450

0.78

0.0246

  

Adjusted for SES

Adjusted for SES & Urban/Rural Status

High

       

1

91–97

*

*

*

*

*

*

3

89–96

51

3.58

<0.0001

51

3.59

<0.0001

4

88–97

*

*

*

*

*

*

5

88–97

*

*

*

*

*

*

6

92–95

492

1.35

0.0008

492

1.34

0.0005

7

88–95

15

6.95

0.0130

15

6.95

0.0102

8

92–97

2991d

1.12

0.0009

2991d

1.12

0.0011

11

93–97

1178

1.29

<0.0001

1178

1.31

<0.0001

Low

       

A

88–97

600e

0.75

<0.0001

600e

0.74

<0.0001

B

88–94

1219f

0.86

0.0303

1219f

0.86

0.0301

C

88–96

1927g

0.88

0.0134

*

*

*

D

88–95

*

*

*

*

*

*