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Table 1 Incidence of asymptomatic PSP (APSP) among the university students

From: The incidence and risk factors of asymptomatic primary spontaneous pneumothorax detected during health check-ups

  All case (%) APSP (%) p-value
Total students 101,529 (100.0%) 43 (0.042%)  
Sex
 Male 78,678 (77.5%) 39 (0.050%) 0.043*
 Female 22,851 (22.5%) 4 (0.018%)  
  1. APSP: asymptomatic primary spontaneous pneumothorax
  2. *: p < 0.05