Table 5

 Mean (95% confidence interval) self reported sensory symptoms for respondents of both waves

Baseline3 month6 month12 monthp Value*Trend‡
*p Values from baseline to 12 month follow up McNemar χ2 test unless otherwise noted.
†p Values from baseline to 12 month follow up Wilcoxon sign rank test.
‡p Values from Cuzick non-parametric trend test across all waves.
Sensory symptoms
Proportion with red or irritated eyes0.67 (0.44 to 0.83)0.21 (0.08 to 0.43)0.12 (0.04 to 0.34)0.25 (0.11 to 0.47)0.0040.002
Proportion with runny nose, sneezing, or nose irritation0.54 (0.33 to 0.74)0.42 (0.23 to 0.63)0.50 (0.30 to 0.70)0.12 (0.04 to 0.34)0.0020.009
Proportion with sore or scratchy throat0.42 (0.23 to 0.63)0.33 (0.17 to 0.56)0.25 (0.11 to 0.47)0.17 (0.06 to 0.39)0.0580.046
Proportion that experienced any one of sensory symptoms0.88 (0.66 to 0.96)0.67 (0.44 to 0.83)0.54 (0.33 to 0.74)0.38 (0.20 to 0.59)<0.001<0.001
Sum of sensory symptoms (sensory symptom scale)1.63 (1.22 to 2.03)0.96 (0.57 to 1.34)0.88 (0.46 to 1.29)0.54 (0.19 to 0.89)<0.001†<0.001
Upper respiratory symptoms
Proportion that experienced wheezing or whistling in chest0.21 (0.08 to 0.43)0.08 (0.02 to 0.30)0.21 (0.08 to 0.43)0.12 (0.04 to 0.34)0.1570.708
Proportion that felt short of breath0.17 (0.06 to 0.39)0.12 (0.04 to 0.34)0.17 (0.06 to 0.39)0.08 (0.02 to 0.30)0.1570.507
Proportion that experienced coughing in morning0.21 (0.08 to 0.43)0.12 (0.04 to 0.34)0.08 (0.02 to 0.30)0.08 (0.02 to 0.30)0.0830.17
Proportion that experienced coughing at all during the rest of the day or at night0.29 (0.14 to 0.52)0.25 (0.11 to 0.47)0.38 (0.20 to 0.59)0.21 (0.08 to 0.43)0.4140.762
Proportion that experienced bringing up any phlegm0.21 (0.08 to 0.43)0.17 (0.06 to 0.39)0.21 (0.08 to 0.43)0.21 (0.08 to 0.43)No change0.909
Proportion that experienced any one of respiratory symptoms0.46 (0.26 to 0.67)0.46 (0.26 to 0.67)0.50 (0.30 to 0.70)0.29 (0.14 to 0.52)0.1570.313
Sum of respiratory symptoms (respiratory symptom scale)1.08 (0.4 to 1.76)0.75 (0.25 to 1.25)1.04 (0.45 to 1.63)0.71 (0.13 to 1.29)0.117†0.412