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Table 2 Ranked barriers in the second and third survey round

From: Adopting wearables to customize health insurance contributions: a ranking-type Delphi

Second round

Third round

Place

Barrier

\(\overline{r }\)

σ

Place

Barrier

\(\overline{r }\)

σ

1

Privacy issues/data protection

2.88

2.34

1

Privacy issues/data protection

1.50

0.87

2

Legal requirements

3.81

2.94

2

Legal requirements

2.94

2.08

3

Lack of data validity/inaccurate measurements

4.38

3.06

3

Lack of data validity/inaccurate measurements

4.63

2.37

4

Application errors

5.25

2.08

4

Application errors

4.69

2.05

4

Solidarity principle of insurance

5.25

3.54

5

Lack of technological competencies at health insurers

6.13

2.57

5

Lack of technological competencies at health insurers

6.50

2.81

6

Wearable data not suitable for contribution adjustments

6.25

2.14

6

Wearable data not suitable for contribution adjustments

7.00

2.94

7

Solidarity principle of insurance

6.63

2.03

7

Lack of public acceptance of wearing wearables

7.56

2.45

8

Lack of public acceptance of wearing wearables

7.00

2.62

8

Bad cost–benefit ratio of individual contributions

7.63

2.47

9

Bad cost–benefit ratio of individual contributions

8.38

2.74

9

Lack of access to wearables

7.88

2.29

10

Lack of access to wearables

8.69

2.05

9

Fear of sanctions

7.88

2.03

11

Fear of sanctions

9.19

1.88

  1. \(\overline{r }\): average rank; σ: standard deviation. Shifts in italics