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Table 1 Demographic and clinical characteristics of the population

From: Prevalence and associated characteristics of anti-SARS-CoV-2 antibodies in Mexico 5 months after pandemic arrival

 

Total sample (n = 3268)

Negative IgM/IgG (n = 3075)

Positive IgM/IgG (n = 193)

P

Males, n (%)

2008 (61.4)

1891 (61.5)

117 (60.6)

0.82

Age, yrs

0.29

 18–34, n (%)

1127 (34.5)

1059 (34.5)

68 (35.2)

 

 35–49, n (%)

1328 (40.6)

1242 (40.4)

86 (44.6)

 

 50–65, n (%)

765 (23.4)

730 (23.7)

35 (18.1)

 

  > 65, n (%)

48 (1.5)

44 (1.4)

4 (2.1)

 

Weighta, kg

80.0 (69–90)

80.0 (69–90)

82 (72–92)

0.13

Heighta, m

1.67 (1.6–1.7)

1.67 (1.6–1.7)

1.67 (1.6–1.7)

0.86

BMIa, kg/m2

28.41 (25.3–32)

28.4 (25.2–32)

29.0 (25.6–32.6)

0.18

BMI categories

0.08

 Underweight, n (%)

17 (0.5)

17 (0.6)

0

 

 Normal, n (%)

721 (22.1)

685 (22.3)

36 (18.7)

 

 Overweight, n (%)

1289 (39.4)

1209 (39.3)

80 (41.5)

 

 Obesity I-III, n (%)

1241 (38)

1164 (37.8)

77 (39.8)

 

Comorbidities

 Hypertension, n (%)

287 (8.8)

269 (8.7)

18 (9.3)

0.79

 Diabetes type 2, n (%)

287 (8.8)

273 (8.9)

14 (7.3)

0.51

 Obesity, n (%)

1241 (38)

1164 (37.8)

77 (39.8)

0.59

City

0.08

 Guadalupe, n (%)

1970 (60.3)

1846 (60.0)

124 (64.2)

 

 Monterrey, n (%)

495 (15.1)

257 (8.4)

17 (8.8)

 

 Juárez, n (%)

274 (8.4)

465 (15.1)

30 (15.5)

 

 Other, n (%)

530 (16.2)

507 (16.5)

22 (11.5)

 

Occupation

0.09

 Police, firefighters and public safety, n (%)

1051 (32.2)

982 (31.9)

69 (35.7)

 

 Office/Management, n (%)

696 (21.2)

660 (21.5)

36 (18.7)

 

 Maintainance/Janitors, n (%)

608 (18.7)

583 (18.9)

25 (12.9)

 

 Healt-care workers, n (%)

163 (5)

155 (5)

8 (4.1)

 

 Other, n (%)

750 (22.9)

695 (22.7)

55 (28.6)

 
  1. aMedian (IQR). IgG Type G immunoglobulin, IgM Type M immunoglobulin