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Table 2

Association of CAG and GGC with breast cancer risk

ARCases (n = 524)Controls (n = 462)ORa95% CI
N%N%
CAG lengthb       
 S/S 121 23.1 122 26.5 1.0 Reference 
 S/L 255 48.7 206 44.7 1.3 0.9–1.8 
 L/L 148 28.2 133 28.9 1.2 0.8–1.7 
CAG lengthb       
 S/S 121 23.1 122 26.5 1.0 Reference 
 Any L 403 76.9 339 73.5 1.3 0.9–1.7 
CAG-cumulative of two alleles       
 ≤42 183 34.9 185 40.1 1.0 Reference 
 ≥43 341 65.1 276 59.9 1.3 1.0–1.7 
GGC lengthc       
 S/S 405 78.6 319 72.0 1.0 Reference 
 S/L 84 16.3 90 20.3 0.7 0.5–1.0 
 L/L 26 5.0 34 7.7 0.5 0.3–0.9 
GGC lengthc       
 S/S 405 78.5 319 71.7 1.0 Reference 
 Any L 111 21.5 126 28.3 0.7 0.5–0.9 
GGC-cumulative of two alleles       
 ≤32 430 83.5 345 77.9 1.0 Reference 
 ≥33 85 16.5 98 22.1 0.7 0.5–0.9 
ARCases (n = 524)Controls (n = 462)ORa95% CI
N%N%
CAG lengthb       
 S/S 121 23.1 122 26.5 1.0 Reference 
 S/L 255 48.7 206 44.7 1.3 0.9–1.8 
 L/L 148 28.2 133 28.9 1.2 0.8–1.7 
CAG lengthb       
 S/S 121 23.1 122 26.5 1.0 Reference 
 Any L 403 76.9 339 73.5 1.3 0.9–1.7 
CAG-cumulative of two alleles       
 ≤42 183 34.9 185 40.1 1.0 Reference 
 ≥43 341 65.1 276 59.9 1.3 1.0–1.7 
GGC lengthc       
 S/S 405 78.6 319 72.0 1.0 Reference 
 S/L 84 16.3 90 20.3 0.7 0.5–1.0 
 L/L 26 5.0 34 7.7 0.5 0.3–0.9 
GGC lengthc       
 S/S 405 78.5 319 71.7 1.0 Reference 
 Any L 111 21.5 126 28.3 0.7 0.5–0.9 
GGC-cumulative of two alleles       
 ≤32 430 83.5 345 77.9 1.0 Reference 
 ≥33 85 16.5 98 22.1 0.7 0.5–0.9 
a

Adjusted for age at reference and reference year.

b

Short (S) = <22 repeats, long (L) = ≥22 repeats.

c

Short (S) = <17 repeats, long (L) = ≥17 repeats.

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