Table 3 Association between characteristics of children and quality of care measured by lung function tests during follow-up in the first six months after start of medication (n = 36,781)

P (No.)

PD (95% CI)

PR (95% CI)

Adj. PR (95% CI)

P-values

0.42 (6,008)

ref

1

1

0.41 (9,298)

0.00 (-0.01–0,01)

1.00 (0.97–1.02)

0.99 (0.97–1.01)

0.353

0.39 (6,994)

ref

1

1

0.44 (6,170)

0.05 (0.04–0.06)

1.12 (1.09–1.15)

1.14 (1.11–1.17)

< 0.001

0.45 (2,142)

0.06 (0.05–0.08)

1.17 (1.12–1.21)

1.23 (1.19–1.27)

< 0.001

0.40 (2,655)

ref

1

1

0.42 (12,612)

0.02 (0.01–0.03)

1.05 (1.02–1.09)

1.03 (0.99–1.06)

0.004

1

0.42 (9,130)

ref

1

1

2

0.42 (4,271)

0.00 (-0.01–0.02)

1.01 (0.98–1.04)

0.98 (0.95–1.01)

0.148

3

0.41 (1,866)

0.0 (-0.02–0.01)

0.98 (0.94–1.02)

0.97 (0.93–1.01)

0.114

1

0.39 (2,202)

ref

1

1

2

0.41 (5,686)

0.03 (0.01–0.04)

1.06 (1.02–1.11)

1.05 (1.01–1.09)

0.019

3

0.43 (5,126)

0.04 (0.02–0.05)

1.10 (1.06–1.14)

1.08 (1.04–1.12)

< 0.001

4

0.42 (2,252)

0.03 (0.01–0.05)

1.07 (1.03–1.12)

1.07 (1.02–1.12)

0.008

0.35 (6,223)

ref

1

1

0.47 (6,208)

0.12 (0.11–0.13)

1.36 (1.32–1.39)

1.37 (1.33–1.4)

< 0.001

0.51 (2,875)

0.17 (0.15–0.18)

1.49 (1.44–1.53)

1.51 (1.46–1.56)

< 0.001