Table 2 Model 1 Multinomial regression moment of referral, no referral as reference category

Deprived neighborhood

1.15 (1.09–1.21)

< 0.001*

1.00 (0.94–1.07)

0.92

1.54 (1.47–1.62)

< 0.001*

1.49 (1.41–1.57)

< 0.001*

1.58 (1.48–1.68)

< 0.001*

1.55 (1.44–1.66)

< 0.001*

Age

Younger than 25 years

Ref

Ref

Ref

25–30 years

0.78 (0.73–0.82)

< 0.001*

0.84 (0.79–0.88)

< 0.001*

0.98 (0.90–1.07)

0.67

30–35 years

0.60 (0.57–0.64)

< 0.001*

0.77 (0.73–0.81)

< 0.001*

0.98 (0.90–1.06)

0.64

35 years or older

0.54 (0.51–1.57)

< 0.001*

0.98 (0.92–1.04)

0.43

1.56 (1.43–1.70)

< 0.001*

Healthcare costs 2017

< €123

Ref

Ref

Ref

€123– €254

1.04 (0.99–1.09)

0.09

1.14 (1.09–1.20)

< 0.001*

0.94 (0.86–1.01)

0.10

€254– €612

1.20 (1.14–1.26)

< 0.001*

1.45 (1.38–1.52)

< 0.001*

1.43 (1.32–1.54)

< 0.001*

€612– €1742

1.23 (1.17–1.29)

< 0.001*

1.67 (1.59–1.75)

< 0.001*

2.27 (2.11–2.44)

< 0.001*

€1742– €4911

0.72 (0.69–0.76)

< 0.001*

1.05 (0.99– 1.10)

0.06

1.74 (1.63–1.87)

< 0.001*

> €4911

0.80 (0.76–0.84)

< 0.001*

1.79 (1.71–1.88)

< 0.001*

3.32 (3.10–3.56)

< 0.001*

Population density

Very strongly urbanized

1.16 (1.11–1.21)

< 0.001*

0.96 (0.91–0.99)

0.02*

0.80 (0.75–8.85)

< 0.001*

Strongly urbanized

1.08 (1.03–1.13)

< 0.01*

1.04 (0.99–1.08)

0.07

0.99 (0.94–1.06)

0.87

Moderately urbanized

Ref

Ref

Ref

Hardly urbanized

0.95 (0.90–0.99)

0.03*

0.96 (0.92–1.01)

0.90

0.80 (0.75–0.85)

< 0.001*

Not urbanized

0.84 (0.79–0.89)

< 0.001*

0.93 (0.89–0.98)

< 0.01*

0.78 (0.73–0.84)

< 0.001*