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Table 1 Characteristics of PTMC group and BTN control group

From: DNA double-strand break repair gene mutation and the risk of papillary thyroid microcarcinoma: a case–control study

Variables PTM (n = 50) BTN (n = 50) χ2 P
Age (years) 2.990 0.084
 ≥ 60岁 4 10   
 < 60岁 46 40   
Sex 0.065 0.799
 Male 10 9   
 Female 40 41   
Smoking status 0.122 0.727
 Yes 5 4   
 No 45 46   
Obesity (BMI ≥ 24) 1.442 0.230
 Yes 27 21   
 No 23 29