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Table 1 Characteristics of responders and non-responders.

From: Impact of supplementary private health insurance on stomach cancer care in Korea: a cross-sectional study

  Responders (N = 391) No (%)* Non-Responders (N = 349) No (%)* p
Age (years) 54.5 (± 10.6) 57.0 (± 11.6) < 0.01
Sex    < 0.01
   Male 285 (72.9) 216 (61.9)  
   Female 106 (27.1) 133 (38.1)  
Time since operation (months) 27.5 (± 3.4) 27.6 (± 3.2) NS
Stage    < 0.01
   Ia 201 (51.7) 162 (46.6)  
   Ib 76 (19.5) 58 (16.7)  
   II 73 (18.8) 59 (17.0)  
   IIIa 30 (7.7) 51 (14.7)  
   IIIb 9 (2.3) 18 (5.2)  
Tumor progress    NS
   Early 233 (59.6) 158 (40.4)  
   Advanced 158 (40.4) 169 (48.4)  
Operation    NS
   Subtotal gastrectomy 306 (78.3) 268 (78.6)  
   Total gastrectomy 85 (21.7) 74 (21.4)  
Dissection    NS
   D1 8 (2.1) 8 (2.3)  
   D2 378 (96.7) 336 (96.3)  
   Others 5 (1.3) 5 (1.4)  
  1. Abbreviations: NS, not significant; D1, limited lymphadenectomy of the perigastric nodes; D2, extended lymphadenectomy.
  2. * Except for age in years and time since operation, which are expressed as mean ± standard deviation.