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Table 1 Characteristics of study participants after propensity score matching

From: Increased risk of chronic fatigue syndrome following infection: a 17-year population-based cohort study

Variable

Potential pathogens

p-value

No (n = 395,811)

Yes (n = 395,811)

n

%

n

%

Sex

0.1749

 Female

231,231

58.42

230,636

58.27

 

 Male

164,580

41.58

165,175

41.73

 

Age, year

< 0.0001

 < 40

184,612

46.64

185,276

46.81

 

 40–65

154,283

38.98

152,370

38.50

 

 65+

56,916

14.38

58,165

14.70

 

Age mean

44.12

16.93

44.18

17.11

0.1710

Comorbidities

 Hypothyroidism

654

0.17

731

0.18

0.0384

 Diabetes mellitus

39,642

10.02

39,458

9.97

0.4905

 Insomnia

35,966

9.09

36,396

9.20

0.0935

 Depression

15,667

3.96

16,355

4.13

0.0001

 Anxiety

57,312

14.48

57,795

14.60

0.1236

 Dementia

917

0.23

1069

0.27

0.0006

 Peptic ulcer

78,871

19.93

79,257

20.02

0.2779

 Obesity

2627

0.66

2814

0.71

0.0110

 Psoriasis

2224

0.56

2535

0.64

0.0000

 Burn

10,722

2.71

11,280

2.85

0.0001

 Gout

30,102

7.61

30,276

7.65

0.4613

 Dyslipidemia

45,876

11.59

46,019

11.63

0.6158

 Inflammatory bowel syndrome

20,993

5.30

21,043

5.32

0.8021

 Hepatitis B

9671

2.44

9975

2.52

0.0281

 Hepatitis C

2795

0.71

3114

0.79

< 0.0001

 Fibromyalgia

78,494

19.83

78,968

19.95

0.1820

Medication

 Doxycycline

2545

0.64

2546

0.64

0.9888

 Azithromycin

4807

1.21

4955

1.25

0.1317

 Clarithromycin

228

0.06

262

0.07

0.1244

 Moxifloxacin

4219

1.07

4379

1.11

0.0827

 Levofloxacin

6797

1.72

6999

1.77

0.0827

 Ciprofloxacin

344

0.09

364

0.09

0.4521

  1. Chi-square test, t-test