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Table 5 Odds ratios of breast cancer risk in relation to p-mTOR expression associated with body composition measurements by tumor ER status

From: Body fatness and breast cancer risk in relation to phosphorylated mTOR expression in a sample of predominately Black women

Body composition measurement   ER+ tumors    ER– tumors  
p-mTOR overexpressed cases vs controls p-mTOR negative/low cases vs controls P-heterogeneity p-mTOR overexpressed cases vs controls p-mTOR negative/low cases vs controls P-heterogeneity
OR (95% CI) OR (95% CI)   OR (95% CI) OR (95% CI)  
Percent body fat
 No. of cases/no. of controls 156/1884 295/1884   23/1884 198/1884  
 Q1 1.00 [reference] 1.00 [reference]   1.00 [reference] 1.00 [reference]  
 Q2 1.29 (0.73–2.28) 1.10 (0.76–1.60)   1.08 (0.28–4.20) 1.53 (0.99–2.36)  
 Q3 1.61 (0.93–2.78) 1.06 (0.71–1.50)   1.20 (0.31–4.58) 0.84 (0.52–1.36)  
 Q4 1.31 (0.74–2.32) 0.67 (0.44–1.01) 0.037 1.34 (0.36–4.95) 0.73 (0.45–1.19) 0.003
P-trend 0.31 0.06   0.64 0.040  
Fat mass index
 No. of cases/no. of controls 155/1859 294/1859   23/1859 198/1859  
 Q1 1.00 [reference] 1.00 [Reference]   1.00 [Reference] 1.00 [reference]  
 Q2 1.26 (0.71–2.23) 1.24 (0.85–1.80)   1.06 (0.27–4.41) 1.59 (1.02–2.47)  
 Q3 1.36 (0.77–2.38) 1.19 (0.81–1.74)   1.23 (0.33–4.61) 0.89 (0.55–1.45)  
 Q4 1.48 (0.84–2.60) 0.72 (0.47–1.10) 0.011 1.09 (0.29–4.20) 0.79 (0.48–1.30) 0.004
P-trend 0.19 0.040   0.90 0.031  
  1. Abbreviations: ER estrogen receptor, OR odds ratio, Q quartile
  2. Models adjusted for age, race, family history of breast cancer, menopausal status, age of menarche, parity, history of breastfeeding, oral contraceptive use, history of diabetes