Table 5 Crude and adjusted multinomial logistic regression models with TSH-measurement frequency and ultrasound frequency within 1 year prior to SHIP examination as outcome variables in all participants and only participants with billing diagnosis and/or medication (weighted)

Determinants

1 TSH

> 1 TSH

1 TSH

> 1 TSH

1 TSH

> 1 TSH

1 TSH

> 1 TSH

Medication

2.88

(2.44–3.39)

8.66

(7.23–10.37)

2.32

(1.96–2.76)

6.29

(5.19–7.61)

1.65

(1.35–2.02)

2.64

(2.11–3.29)

1.66

(1.34–2.04)

2.48

(1.98–3.11)

Sex (female)

1.29

(1.16–1.44)

2.21

(1.88–2.59)

1.29

(1.15–1.44)

1.83

(1.53–2.18)

0.94

(0.76–1.17)

1.45

(1.13–1.86)

0.93

(0.74–1.16)

1.36

(1.04–1.76)

Age (continuous)

1.03

(1.03–1.04)

1.04

(1.03–1.04)

1.03

(1.02–1.03)

1.02

(1.01–1.03)

1.02

(1.01–1.03)

1.01

(1.00–1.02)

1.02

(1.01–1.03)

1.00

(0.99–1.02)

CCI^a

1.22

(1.17–1.26)

1.37

(1.31–1.43)

1.08

(1.04–1.13)

1.26

(1.19–1.32)

1.05

(0.98–1.13)

1.16

(1.09–1.24)

0.99

(0.92–1.06)

1.15

(1.06–1.23)

1 ultrasound

> 1 ultrasound

1 Ultrasound

> 1 Ultrasound

1 Ultrasound

> 1 Ultrasound

1 Ultrasound

> 1 Ultrasound

Medication

5.39

(4.39–6.63)

8.48

(5.65–12.73)

4.24

(3.41–5.29)

6.79

(4.41–10.48)

1.11

(0.89–1.39)

1.35

(0.88–2.06)

1.14

(0.90–1.44)

1.35

(0.88–2.08)

Sex (female)

2.02

(1.65–2.47)

4.93

(2.89–8.39)

1.58

(1.27–1.96)

3.20

(1.84–5.54)

0.92

(0.72–1.18)

2.03

(1.16–3.58)

0.88

(0.67–1.13)

1.66

(0.93–2.96)

Age (continuous)

1.02

(1.01–1.03)

1.00

(0.98–1.02)

1.02

(1.01–1.02)

1.00

(0.98–1.02)

0.99

(0.98–1.00)

0.97

(0.96–0.99)

0.99

(0.98–1.01)

0.98

(0.97–1.01)

CCI^a

1.12

(1.06–1.18)

0.86

(0.72–1.02)

1.03

(0.96–1.09)

0.81

(0.67–0.98)

0.98

(0.91–1.06)

0.69

(0.56–0.85)

0.99

(0.91–1.07)

0.75

(0.61–0.94)