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Table 2 Validity of study population. Data shows the six-month follow-up of primary care contacts after discharge

From: Health status and health care utilization after discharge from geriatric in-hospital stay – description of a register-based study

Variables

2012

2016

 

Study cohort

n = 6710

Region cohort

n = 20,029

Ecological comparison

Study cohort

n = 8091

Region cohort

n = 22,906

Ecological comparison

First contact after discharge, n (%) b

 Physician

1242 (19)

3894 (19)

0.95 (0.89–1.02)

1390 (17)

4215 (18)

0.93 (0.88–0.99)

 Nurse/District nurse

1776 (26)

5932 (30)

0.89 (0.85–0.94)

2112 (26)

6339 (28)

0.94 (0.90–0.99)

 Occupational therapist

748 (11)

1728 (9)

1.29 (1.18–1.41)

1137 (14)

2453 (11)

1.31 (1.22–1.41)

 Physiotherapist

662 (10)

1385 (7)

1.43 (1.30–1.57)

902 (11)

2158 (9)

1.18 (1.09–1.28)

 Assistant nurse

389 (6)

1342 (7)

0.87 (0.77–0.97)

656 (8)

1859 (8)

1.00 (0.91–1.09)

 Other

133 (2)

309 (2)

1.28 (1.04–1.58)

191 (2)

527 (2)

1.03 (0.86–1.21)

 No visits

1655 (26)

5439 (27)

0.91 (0.86–0.96)

1703 (21)

5355 (23)

0.90 (0.85–0.95)

Days to first visit, mean (sd) a

12 (23)

13 (24)

12.75 (12.46–13.03)

10 (19)

11 (21)

10.74 (10.51–10.97)

Number of visits in the first six months after discharge, n (%) b

n = 187,096

n = 576,508

 

n = 292,613

n = 816,839

 

 Physician

31,125 (17)

85,114 (15)

1.13 (1.11–1.14)

38,322 (13)

97,850 (12)

1.09 (1.08–1.11)

 Nurse/District nurse

78,143 (42)

261,515 (45)

0.92 (0.91–0.93)

102,877 (35)

301,739 (37)

0.95 (0.95–0.96)

 Occupational therapist

9350 (5)

25,900 (4)

1.11 (1.09–1.14)

12,826 (4.3)

29,615 (3.6)

1.21 (1.18–1.23)

 Physiotherapist

12,756 (7)

35,790 (6)

1.10 (1.08–1.12)

20,762 (7)

51,468 (6)

1.12 (1.11–1.14)

 Assistant nurse

52,941 (28)

161,723 (28)

1.01 (1.00–1.02)

108,852 (37)

324,890 (40)

0.94 (0.93–0.94)

 Dietician

1070 (0.6)

2352 (0.4)

1.40 (1.30–1.51)

2447 (0.8)

5796 (0.7)

1.17 (1.12–1.24)

 Speech therapist

1227 (0.7)

2685 (0.5)

1.41 (1.32–1.51)

1275 (0.4)

3421 (0.4)

1.04 (0.97–1.11)

 Social worker

430 (0.2)

1225 (0.2)

1.08 (0.97–1.21)

758 (0.25)

1842 (0.23)

1.15 (1.05–1.25)

 Psychologist

54 (0.03)

204 (0.04)

0.82 (0.59–1.11)

49 (0.02)

218 (0.03)

0.63 (0.45–0.86)

Type of visits after discharge in the first six months, n (%) b

 Department based

41,185 (22)

112,324 (19)

1.13 (1.12–1.14)

45,224 (15)

117,299 (14)

1.08 (1.06–1.09)

 Home visits

142,826 (76)

456,765 (79)

0.93 (0.96–0.97)

230,357 (79)

658,322 (81)

0.98 (0.97–0.98)

 Team visits

608 (0.3)

2251 (0.4)

0.83 (0.76–0.91)

10,083 (3.4)

21,291 (2.6)

1.32 (1.29–1.35)

 Administrative work related to care

2477 (1)

5168 (0.9)

1.47 (1.41–1.55)

6949 (2.3)

19,927 (2.4)

0.97 (0.95–1.00)

  1. Abbreviations: n number, m mean, sd standard deviation, Ecological comparison = comparing aggregated data on the group level
  2. Bold style indicate a two-sided exact non-significance, tests usually called “midp” calculation, to control for differences of crude incidence rate comparing Region and Study cohorts at year 2012 and 2016
  3. a: Performs t-tests on the equality of means assuming a hypothesis that combined mean of study population and region population is equal
  4. b: Incidence rate ratio (95% CI)