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Table 3 Risk factors that affect FVC%

From: Effect of diagnosis delay on pulmonary function in children with asthma

Risk factors

Regression coefficients (95% CI)

Standard error

t

P

Constants

103.4 (99.6–107.3)

2.0

52.7

 < 0.001

Age of onset (month)

 − 0.04 (− 0.7–0.1)

0.02

 − 2.7

0.006

Delayed diagnosis time (month)

 − 0.07 (− 0.1–0.02)

0.02

 − 2.9

0.003

Gender

1.7 (− 0.1–3.5)

0.9

1.8

0.07

Rhinitis

 − 0.08 (− 2.0–1.8)

1.0

 − 0.08

0.9

Itching eczema

 − 0.8 (− 2.6–1.0)

0.9

 − 0.9

0.4