Table 1 Baseline characteristics of age and sex matched cohorts before IPTW.

From: The subsequent risk of retinal vein occlusion disease after sinusitis diagnosis: a nationwide population-based study

 

Non-sinusitis cohort

Sinusitis cohort

ASD

 

263,064

131,532

 

Year of index

 2002–2004

123,302 (46.87%)

61,651 (46.87%)

< 0.01

 2005–2007

54,036 (20.54%)

27,018 (20.54%)

< 0.01

 2008–2010

33,116 (12.59%)

16,558 (12.59%)

< 0.01

 2011–2013

27,136 (10.32%)

13,568 (10.32%)

< 0.01

 2014–2016

14,930 (5.68%)

7465 (5.68%)

< 0.01

 2017–2019

10,544 (4.01%)

5272 (4.01%)

< 0.01

Sex

 Male

130,106 (49.46%)

65,053 (49.46%)

< 0.01

 Female

132,958 (50.54%)

66,479 (50.54%)

< 0.01

Age at T0

 < 40

170,891 (64.96%)

86,300 (65.61%)

0.01

 40–49

41,808 (15.89%)

19,815 (15.06%)

0.02

 50–59

31,052 (11.80%)

15,566 (11.83%)

< 0.01

 60–69

13,527 (5.14%)

6935 (5.27%)

0.01

 70–79

4616 (1.75%)

2312 (1.76%)

< 0.01

 ≥ 80

1170 (0.44%)

604 (0.46%)

< 0.01

Urbanization level

 1 (high)

80,612 (30.64%)

41,470 (31.53%)

0.02

 2

76,778 (29.19%)

39,804 (30.26%)

0.02

 3

43,570 (16.56%)

23,177 (17.62%)

0.03

 4

37,196 (14.14%)

17,061 (12.97%)

0.03

 5

4846 (1.84%)

1908 (1.45%)

0.03

 6

11,690 (4.44%)

4502 (3.42%)

0.05

 7 (low)

8372 (3.18%)

3610 (2.74%)

0.03

Type of insurance coverage

 Government

17,179 (6.53%)

9755 (7.42%)

0.03

 Labor

151,916 (57.75%)

84,238 (64.04%)

0.13

 Farmers’/fishermen’s membership

36,091 (13.72%)

15,643 (11.89%)

0.05

 Low-income households

1831 (0.70%)

587 (0.45%)

0.03

 Non-labor force/unemployed

49,122 (18.67%)

19,252 (14.64%)

0.11

 Others

6925 (2.63%)

2057 (1.56%)

0.07

 Length of hospital stay (within 180 days before T0)

 0 day

260,868 (99.17%)

129,579 (98.52%)

0.06

 1–6 days

1264 (0.48%)

1429 (1.09%)

0.07

 >=7 days

932 (0.35%)

524 (0.40%)

0.01

Co-morbidity (within 180 days before T0)

 Hypertension

14,694 (5.59%)

10,390 (7.90%)

0.09

 Diabetes mellitus

6447 (2.45%)

3997 (3.04%)

0.04

 Hyperlipidemia

7174 (2.73%)

5706 (4.34%)

0.09

 Ischemic heart diseases

3123 (1.19%)

2547 (1.94%)

0.06

 Peripheral vascular disease

327 (0.12%)

247 (0.19%)

0.02

 Ischemic stroke

1262 (0.48%)

739 (0.56%)

0.01

 Hemorrhagic stroke

404 (0.15%)

153 (0.12%)

0.01

 Chronic kidney disease

871 (0.33%)

448 (0.34%)

< 0.01

 COPD

2211 (0.84%)

3778 (2.87%)

0.15

 Alcohol-related disorders

899 (0.34%)

602 (0.46%)

0.02

 Rheumatoid arthritis

340 (0.13%)

295 (0.22%)

0.02

 Systemic lupus erythematosus

136 (0.05%)

99 (0.08%)

0.01

Co-medication (within 180 days before T0)

 Systemic corticosteroids

8668 (3.30%)

13,634 (10.37%)

0.28

 NSAIDs

47,371 (18.01%)

64,671 (49.17%)

0.70

 Beta- blockers

7552 (2.87%)

5700 (4.33%)

0.08

 CCBs

7981 (3.03%)

5662 (4.30%)

0.07

 ACEI

2851 (1.08%)

1965 (1.49%)

0.04

 ARBs

4641 (1.76%)

3201 (2.43%)

0.05

 Statin

3078 (1.17%)

2278 (1.73%)

0.05

 Diuretics

454 (0.17%)

322 (0.24%)

0.02

 Vitamin K antagonists

310 (0.12%)

162 (0.12%)

< 0.01

 Heparin preparations

192 (0.07%)

126 (0.10%)

0.01

  1. ASD, absolute standardized difference was calculated to assess balance, with values less than 0.1 indicating good balance.