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Table 5 Fogger trucks and risk of breast cancer by weight change, breastfeeding and menopausal status a

From: Exposure to fogger trucks and breast cancer incidence in the Long Island Breast Cancer Study Project: a case–control study

Population

 

Modifiers

No fogger truck

Fogger truck

Age-adjusted OR (95% CI)b

p-valuec

   

Cases (N)

Controls (N)

Cases (N)

Controls (N)

No fogger truck

Fogger truck

 

Total population

Weight change

Lost

78

109

29

42

1.00 (reference)

0.94 (0.53, 1.68)

0.3

  

Stable

80

75

32

34

1.00 (reference)

0.73 (0.39, 1.39)

 
  

Gain

814

761

528

482

1.00 (reference)

1.19 (1.01, 1.40)

 
 

Breastfeeding status

Never

612

633

416

370

1.00 (reference)

1.17 (0.97, 1.40)

0.7

  

Ever

307

365

173

188

1.00 (reference)

1.08 (0.83, 1.40)

 
 

Menopausal status

Pre-

308

328

164

175

1.00 (reference)

0.96 (0.73, 1.26)

0.2

  

Post-

592

633

414

357

1.00 (reference)

1.25 (1.05, 1.50)

 

Fogger truck ≤1972

Weight change

Lost

78

109

23

32

1.00 (reference)

1.03 (0.54, 1.96)

0.2

  

Stable

80

75

20

24

1.00 (reference)

0.68 (0.32, 1.43)

 
  

Gain

761

841

403

352

1.00 (reference)

1.21 (1.01, 1.45)

 
 

Breastfeeding status

Never

612

633

311

273

1.00 (reference)

1.16 (0.95, 1.43)

0.9

  

Ever

307

365

135

135

1.00 (reference)

1.13 (0.85, 1.51)

 
 

Menopausal status

Pre-

308

328

100

102

1.00 (reference)

0.97 (0.70, 1.35)

0.3

  

Post-

592

633

339

292

1.00 (reference)

1.24 (1.02, 1.51)

 
  1. a Earliest self-reported fogger truck at residence stratified by time period among Long Island, New York women, Long Island Breast Cancer Study Project,1996-1997. Population and modifier definitions are mutually exclusive categories.
  2. badjusted for 5-year age groups.
  3. cmultiplicative interaction p-value from likelihood ratio test.