Table 1 Characteristics and overall PIM use of older adults with Parkinson’s disease in China, 2015–2017 (n = 14,452)

14,452 (100)

8,356

57.8

57.8

-

-

-

Age

 65–74

6,603 (45.7)

3,650

55.3

54.7

ref

ref

ref

 75–84

6,705 (46.4)

3,958

59.0

59.5

1.22^***

1.14

1.31

 ≥ 85

1,144 (7.9)

748

65.4

65.5

1.58^***

1.38

1.80

Gender

 Female

6,415 (44.4)

3,975

62.0

61.4

ref

ref

ref

 Male

8,037 (55.6)

4,381

54.5

55.0

0.77^***

0.72

0.82

Insurance type

 URRBMI

2,237 (15.5)

1,522

68.0

67.3

ref

ref

ref

 UEBMI

12,215 (84.5)

6,834

55.9

56.1

0.62^***

0.56

0.68

Region

 East

6,292 (43.5)

3,788

60.2

59.9

ref

ref

ref

 Central

4,596 (31.8)

2,696

58.7

58.5

0.94

0.87

1.02

 West

3,564 (24.7)

1,872

52.5

53.2

0.76^***

0.70

0.82