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. 2020 Jul 1;16:58. doi: 10.1186/s13223-020-00455-9

Table 3.

Severity of symptoms in patients from the 1990s and 2010s

Symptoms Number of patients (%) P*
1990s (n = 1447) 2010s (n = 3388)
Nasal obstruction 0.003
 Mild 555 (38.4) 1148 (33.9)
 Moderate to severe 892 (61.6) 2240 (66.1)
Rhinorrhea < 0.001
 Mild 926 (64.0) 2351 (69.4)
 Moderate to severe 521 (36.0) 1037 (30.6)
Sneezing 0.162
 Mild 933 (64.5) 2255 (66.6)
 Moderate to severe 514 (35.5) 1133 (33.4)
Itching of the nose/eye < 0.001
 Mild 981 (67.8) 2010 (59.3)
 Moderate to severe 466 (32.2) 1378 (40.7)

* Chi square test