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Table 2 Comparability in age, sex and number of chronic diseases by groups, before and after propensity score matching

From: Better health outcomes at lower costs: the benefits of primary care utilisation for chronic disease management in remote Indigenous communities in Australia’s Northern Territory

Proportions

Low primary care (n = 6987)

Medium primary care (n = 5926)

High primary care (n = 1271)

χ2significance

Before PSM

After PSM

Before PSM

After PSM

Before PSM

After PSM

Before PSM

After PSM

Age

15-

48%

20%

47%

19%

20%

20%

523.3**

2.04 -

30-

24%

23%

25%

25%

23%

23%

  

40-

14%

26%

15%

27%

27%

27%

  

50-

7%

18%

8%

17%

17%

17%

  

60-

7%

13%

5%

12%

13%

13%

  

Sex

Male

50%

35%

39%

35%

33%

33%

523.3**

2.07 -

Female

50%

65%

61%

65%

67%

67%

  

Number of chronic diseases

0

63%

10%

43%

10%

10%

10%

2004.8**

11.12 -

1

17%

16%

22%

16%

16%

16%

  

2

9%

22%

17%

23%

23%

23%

  

3

7%

28%

13%

30%

31%

31%

  

4

4%

20%

5%

17%

16%

16%

  

5

1%

4%

1%

5%

5%

5%

  
  1. Note: n = number of patients; - p > 0.05; *p < 0.05; **p < 0.01; PSM = propensity score matching.