Skip to main content

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