Skip to main content

Table 1 Characteristics of the study sample according to symptomatic SARS-COV-2 reinfection status, Mexico 2020

From: Symptomatic SARS-COV-2 reinfection: healthcare workers and immunosuppressed individuals at high risk

 

Overall

SARS-COV-2 reinfection

p

 

No

Yes

 

n = 99,993

n = 99,783

n = 210

Gender

 Female

50,916

(50.9)

50,805

(50.9)

111

(52.9)

0.574

 Male

49,077

(49.1)

48,978

(49.1)

99

(47.1)

 

Age (mean ± SD, years)

42.2 ± 13.1

42.2 ± 13.1

39.2 ± 10.4

 < 0.001

 Age group (years)

  20–49

73,069

(73.1)

72,888

(73.1)

181

(86.2)

 < 0.001

  50–59

16,755

(16.8)

16,735

(16.7)

20

(9.5)

 

  60–69

6644

(6.6)

6638

(6.7)

6

(2.9)

 

  70 + 

3525

(3.5)

3522

(3.5)

3

(1.4)

 

Occupation

 Housewife

10,685

(10.7)

10,679

(10.7)

6

(2.9)

 < 0.001

 Healthcare worker

10,183

(10.2)

10,151

(10.2)

32

(15.2)

 

 Other healthcare-related

22,303

(22.3)

22,195

(22.2)

108

(51.4)

 

 Student

919

(0.9)

919

(0.9)

0

(0)

 

 Other

55,903

(55.9)

55,839

(56.0)

64

(30.5)

 

Disease severity (at primary infection) a

 Mild-moderate

81,018

(81.0)

80,827

(81.0)

191

(91.0)

 < 0.001

 Severe

18,975

(19.0)

18,956

(19.0)

19

(9.0)

 

Personal history of:

 Obesity (BMI 30 or higher)

  No

81,531

(81.5)

81,353

(81.5)

178

(84.8)

0.228

  Yes

18,462

(18.5)

18,430

(18.5)

32

(15.2)

 

 Type 2 diabetes mellitus

  No

86,909

(86.9)

86,718

(86.9)

191

(91.0)

0.082

  Yes

13,084

(13.1)

13,065

(13.1)

19

(9.0)

 

 Arterial hypertension

  No

82,167

(82.2)

81,991

(82.2)

176

(83.8)

0.535

  Yes

17,826

(17.8)

17,792

(17.8)

34

(16.2)

 

 Immunosuppressionb

  No

98,830

(98.8)

98,627

(98.8)

203

(96.7)

0.003

  Yes

1163

(1.2)

1156

(1.2)

7

(3.3)

 

 Chronic kidney disease

  No

98,440

(98.5)

98,239

(98.5)

201

(95.7)

0.001

  Yes

1553

(1.5)

1544

(1.5)

9

(4.3)

 

 Chronic obstructive pulmonary disease

  No

98,872

(98.9)

98,667

(98.9)

205

(97.6)

0.083

  Yes

1121

(1.1)

1116

(1.1)

5

(2.4)

 

 Asthma

  No

96,906

(96.9)

96,705

(96.9)

201

(95.7)

0.315

  Yes

3087

(3.1)

3078

(3.1)

9

(4.3)

 

 Cancer (any site)

  No

99,744

(99.7)

99,535

(99.7)

209

(99.5)

0.508

  Yes

249

(0.3)

248

(0.3)

1

(0.5)

 
  1. SARS-COV-2 Severe acute respiratory coronavirus 2, SD Standard deviation, BMI Body mass index
  2. 1) The absolute and relative (%) frequencies are presented, except if the mean is specified; 2) p-value from chi-square or t-tests are presented as corresponding.
  3. aSevere illness included the register of dyspnea requiring hospital admission.
  4. bImmunosuppression referred to any cause of the related deficiency except for type 2 diabetes mellitus or renal impairment.