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Table 2 Correlation between serum p53Abs and clinicopathologic parameters

From: Serum p53 antibody detection in patients with impaired lung function

   p-valuea
Age (years) (< 58 / ≥ 58)  
Negative 308 / 328 (48% / 52%) 0.502
Positive 19 / 15 (56% / 44%)  
Missing 5  
Gender Male / Female  
Negative 359 / 281 (56% / 44%) 0.202
Positive 24 / 11 (69% / 31%)  
No. of cigarettes per day (> 20 / ≤ 20)  
Negative 197 / 356 (36% / 64%) 0.019*
Positive 19 / 14 (58% / 42%)  
Packs-year (> 40 / ≤ 40)  
Negative 211 / 341 (38% / 62%) 0.092#
Positive 18 / 15 (55% / 45%)  
LFT impairment Moderate-Severe / Normal-Mild  
Negative 113 / 527 (18% / 82%) 0.068#
Positive 11 / 24 (31% / 69%)  
  1. aCalculated by chi-square test;* p < 0.05, # p < 0.10.