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Table 4 Significance of differences concerning the time spent with friends.

From: Quality of life and activity of children suffering from bronchial asthma

Sum of ranks - Asthmatic Children Sum of ranks - Healthy Children U Statistics P n
1344.5 8108.5 641.5 P < 0.05 Asthmatic - 37
     Healthy 100
  1. Mann-Whitney- U test.