Table 2. Mean and standard deviation of saliva flow rate and SIgA levels and percentage variation (Δ%), upper respiratory illness symptoms and stress symptoms (n = 8). Data are means (±SD).

	Baseline	Week 1	Week 2	Week 3	Week 4	Week 5
Saliva flow rate (ml·min-1)	.84 (.26)	.91 (.18)	.81 (.17	.81 (.27)	.78 (.32)	.83 (.46)
Δ% saliva flow rate	-	12.8 (32.3)	.99 (28.50)	3.49 (41.90)	–2.60 (44.7)	–.75 (51.3)
SIgA concentration (µg·ml-1)	52.2 (32.1)	55.5 (32.3)	78.2 (30.3)	38.8 (16.6)	69.3 (34.9)	59.8 (31.4)
Δ% SIgA concentration	-	14.3 (34.1)	67.0 (37.2)	–15.0 (27.8) † †	97.1 (90.7)	35.8 (73.5)
SIgA secretion rate (µg·ml-1)	52.2 (59.4)	49.0 (27.1)	61.0 (21.9)	30.3 (13.7)	56.3 (35.3)	49.0 (27.3)
Δ% SIgA secretion rate	-	31.7 (68.4)	69.1 (74.7)	–10.7 (54.3)	60.0 (127.6)	54.6 (135.7)
URI – total reports	-	-	-	17	3	-
URINo. of affected individuals	-	-	-	2	2	-
URI episodes (max and min)	-	-	-	0 -10	0 – 2	-
Stress symptoms Stress symptoms (max and min)	-	2.4 (2.2) (0 – 6)	2.6 (3.4) (0 – 7)	3.1 (4.5 ) (0 – 11)	2.3 (3.9 ) (0 – 7)	2.6 (3.7) (0 – 10)

† †  p < 0.05, in relation to weeks 2 and 4.