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Table 4 Cumulative number of days of URTI symptoms during intervention period

From: Efficacy of heat-killed Lactococcus lactis JCM 5805 on immunity and fatigue during consecutive high intensity exercise in male athletes: a randomized, placebo-controlled, double-blinded trial

   1, 2, 3 4, 5 p valuea
Sneeze or running nose (n) Placebo 52 258 0.032
 (1: Severe, 2: Moderate, 3: Mild, 4: Slight, 5: Normal) LC-Plasmab 36 301  
Sore throat (n) Placebo 4 306 1.000
 (1: Severe, 2: Moderate, 3: Mild, 4: Slight, 5: Normal) LC-Plasma 4 333  
Cough (n) Placebo 9 301 0.332
 (1: Severe, 2: Moderate, 3: Mild, 4: Slight, 5: Normal) LC-Plasma 5 332  
  1. The cumulative number of days of URTI symptom was counted separately
  2. aThe cumulative days of each symptoms were compared between the placebo and LC-Plasma groups by Chi-square test
  3. bThe adjusted residual of the LC-Plasma group [4, 5] was calculated as 2.3