Table 4.

Evolution of symptom frequency and allergy severity between the 2014 and 2015 pollen seasons

	Children (N = 203)	Adults (N = 280)	Total (N = 483)
Change in symptom frequency between 2014 and 2015
Not determined in 2015	2 (1.0%)	6 (2.1%)	8 (1.7%)
Improved (persistent in 2014/intermittent in 2015)	146 (71.9%)	181 (64.6%)	327 (67.7%)
Worsened (intermittent in 2014/persistent in 2015)	2 (1.0%)	5 (1.8%)	7 (1.4%)
Unchanged between 2014 and 2015	53 (26.1%)	88 (31.4%)	141 (29.2%)
Change in allergy severity between 2014 and 2015
Improved (moderate-severe in 2014/mild in 2015)	122 (60.1%)	169 (60.4%)	291 (60.2%)
Worsened (mild in 2014/moderate-severe in 2015)	3 (1.5%)	None	3 (0.6%)
Unchanged between 2014 and 2015	78 (38.4%)	111 (39.6%)	189 (39.1%)