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Table 5 Correlation between symptom score and lagged grass pollen concentration (number of days) during grass pollen season (birch pollen load < 5 grains/m3)

From: Clinical response to varying pollen exposure in allergic rhinitis in children in The Netherlands

Variabele

Spearman’s Rho (daily score)

P-value

Spearman’s Rho (Ocular score)

P-value

Spearman’s Rho (Nasal score)

P-value

2013

 Lag grass 1 day

0.321

0.000

0.350

0.000

0.232

0.000

 Lag grass 2 days

0.147

0.000

0.179

0.000

0.078

0.000

 Lag grass 3 days

0.194

0.000

0.250

0.000

0.031

0.129

2014

 Lag grass 1 day

0.626

0.000

0.581

0.000

0.627

0.000

 Lag grass 2 days

0.490

0.000

0.488

0.000

0.473

0.000

 Lag grass 3 days

0.296

0.000

0.303

0.000

0.292

0.000