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Table 1 Characteristics of breast cancer patients and their NR1D1 expression level

From: High expression of NR1D1 is associated with good prognosis in triple-negative breast cancer patients treated with chemotherapy

CharacteristicsAll patientsLow NR1D1High NR1D1 
n = 694n = 555n = 139
No.(%)No.(%)No.(%)P valuea
Age at diagnosis (years)0.199
 ≤ 5042060.534361.87755.4 
 > 5027439.521238.26244.6 
Tumor size0.077
 T126938.822139.84834.5 
 T237854.529256.28661.9 
 T3 or T4476.8427.653.6 
LN involvement0.813
 N035451.028851.96647.5 
 N118025.914225.63827.3 
 N28512.26712.11812.9 
 N37510.85810.51712.2 
LN metastasis0.404
 Negative35451.028851.96647.5 
 Positive34049.026748.17352.5 
AJCC stage0.210
 I16824.214225.62618.7 
 II35350.927549.57856.1 
 III17324.913824.93525.2 
Histologic grade0.011
 17611.06912.475.0 
 224635.420136.24532.4 
 332346.524644.37755.4 
 Unknown497.1397.0107.2 
Estrogen receptor0.021
 Negative28240.621338.46949.6 
 Positive41159.234161.47050.4 
 Unknown10.110.200.0 
Progesterone receptor0.393
 Negative37954.629853.78158.3 
 Positive31445.225646.15841.7 
 Unknown10.110.200.0 
HER2 amplification0.113
 Negative50472.641174.19366.9 
 Positive19027.414425.94633.1 
Breast cancer subtype0.067
 ER+/HER2−33448.128150.65338.1 
 ER+/HER2+9714.07413.32316.5 
 ER−/HER2+9213.36912.42316.5 
 TNBC (ER−/HER2−)17024.513023.44028.8 
 Undefined10.110.200.0 
Adjuvant chemotherapy0.649
 No8512.27012.61510.8 
 Yes60787.548387.012489.2 
 Unknown20.320.400.0 
  1. aChi-square test, P values less than 0.05 are considered as significant changes and marked in italics