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Table 4 Relative difference in average number of visits to doctors in outpatient care (controlled for age) in the total population and in the survey population

From: Comparing healthcare utilization among health survey respondents with the total population – are respondents representative?

 

Total population

Survey population

z-test

Estimate

95 % CI (Low)

95 % CI (High)

Estimate

95 % CI (Low)

95 % CI (High)

 

Women (18–64 years)

 Income quintile 1 (Low)

1.42

1.41-

1.43

1.41

1.31-

1.52

0.16

 Income quintile 2

1.52

1.50 -

1.54

1.41a

1.31-

1.51

2.03

 Income quintile 3

1.35

1.34-

1.36

1.34

1.25-

1.44

0.20

 Income quintile 4

1.20

1.19-

1.21

1.25

1.17-

1.34

−1.30

 Primary school

1.55

1.53-

1.56

1.39a

1.30-

1.49

3.02

 Secondary school

1.24

1.24-

1.25

1.25

1.19-

1.31

−0.18

 Born outside Sweden

1.04

1.03-

1.05

1.12a

1.06-

1.18

−2.49

 Disadvantaged areas

1.20

1.18-

1.21

1.23

1.10-

1.37

−0.48

Women (65+ years)

 Income quintile 1 (Low)

1.10

1.08-

1.12

1.15

1.03-

1.28

−0.73

 Income quintile 2

1.16

1.14-

1.18

1.12

1.02-

1.23

0.67

 Income quintile 3

1.20

1.19-

1.22

1.20

1.09-

1.32

0.06

 Income quintile 4

1.12

1.10-

1.14

1.10

1.00-

1.22

0.30

 Primary school

1.05

1.04-

1.06

0.98

0.90-

1.06

1.75

 Secondary school

1.06

1.05-

1.08

1.11

1.03-

1.20

−1.19

 Born outside Sweden

1.01

0.99-

1.02

0.98

0.90-

1.06

0.66

 Disadvantaged areas

1.05

1.02-

1.08

0.96

0.82-

1.13

1.09

Men (18–64 years)

 Income quintile 1 (Low)

1.59

1.57-

1.61

1.50

1.36-

1.67

1.08

 Income quintile 2

1.70

1.68-

1.72

1.58

1.44-

1.74

1.47

 Income quintile 3

1.41

1.39-

1.43

1.36

1.24-

1.49

0.82

 Income quintile 4

1.18

1.17-

1.19

1.07a

0.98-

1.17

2.05

 Primary school

1.70

1.68-

1.72

1.61

1.47-

1.75

1.29

 Secondary school

1.33

1.32-

1.35

1.19a

1.11-

1.27

3.53

 Born outside Sweden

0.99

0.98-

1.00

1.20a

1.11-

1.29

−4.89

 Disadvantaged areas

1.16

1.14-

1.18

1.28

1.11-

1.47

−1.31

Men (65+ years)

 Income quintile 1 (Low)

1.11

1.08-

1.14

1.05

0.91-

1.20

0.84

 Income quintile 2

1.15

1.13-

1.17

1.02a

0.91-

1.14

2.03

 Income quintile 3

1.16

1.14-

1.19

1.03a

0.92-

1.14

2.26

 Income quintile 4

1.11

1.08-

1.13

0.97a

0.87-

1.09

2.27

 Primary school

1.07

1.06-

1.09

1.05

0.96-

1.16

0.40

 Secondary school

1.06

1.04-

1.07

1.02

0.93-

1.11

0.86

 Born outside Sweden

0.99

0.98-

1.01

1.10

0.99-

1.21

−1.90

 Disadvantaged areas

0.98

0.95-

1.02

1.13

0.94-

1.35

−1.42

  1. aThe relative difference in average number of visits in the survey population is significantly different from the relative difference in the total population based on the z-test of the two estimates
  2. Reference group: Income quintile 5 (High), Post-secondary school, Born in Sweden, Non-disadvantaged areas in Stockholm county