Table 2

Total days, severity score and symptom score for URTI over 12 weeks across physical fitness and exercise frequency tertiles

	Physical fitness tertile
	Low (N=341)	Medium (N=311)	High (N=350)	p For trend; FDR p value
URTI, total days	8.18 (6.81 to 9.67)	4.95^* (3.89 to 6.13)	4.41^* (3.44 to 5.49)	<0.001; <0.001
URTI severity score	16.1 (13.2 to 19.4)	11.2^* (8.6 to 14.0)	11.0^* (8.7 to 13.7)	0.006; 0.006
URTI symptom score	88.2 (71.0 to 107)	59.4^* (44.9 to 76.0)	58.2^* (44.7 to 73.4)	0.005; 0.006

	Exercise frequency tertile
	Low <1 day/week (N=214)	Medium 1–4 days/week (N=573)	High ≥5 days/week (N=215)	p For trend; FDR p value
URTI, total days	8.60 (6.91 to 10.5)	5.46^* (4.52 to 6.50)	4.89^* (3.62 to 6.35)	<0.001; 0.002
URTI severity score	18.2 (14.5 to 22.3)	11.5^* (9.47 to 13.8)	10.7^* (7.91 to 13.9)	0.001; 0.003
URTI symptom score	93.9 (72.8 to 118)	63.7^* (51.6 to 77.1)	55.0^* (39.4 to 73.2)	0.003; 0.006

Data are presented as least square means (95% CIs) after adjustment for age, education level marital status, sex, stress level, body mass index and fruit intake.
↵* p<0.05 compared to the low fitness or exercise frequency tertile.
FDR, false discovery rate; URTI, upper respiratory tract infection.