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

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

		1, 2, 3	4, 5	p value^a
Sneeze or running nose (n)	Placebo	52	258	0.032
(1: Severe, 2: Moderate, 3: Mild, 4: Slight, 5: Normal)	LC-Plasma^b	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

The cumulative number of days of URTI symptom was counted separately
^aThe cumulative days of each symptoms were compared between the placebo and LC-Plasma groups by Chi-square test
^bThe adjusted residual of the LC-Plasma group [4, 5] was calculated as 2.3

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