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Table 1 Demographic data of subjects

From: Post-infection cognitive impairments in a cohort of elderly patients with COVID-19

 

Patients (n = 1539)

Severe cases (n = 238)

Non-severe cases (n = 1301)

Control (n = 466)

P value Patients vs. Control

P value Severe vs. Non-Severe

Age – Median (IQR), year

69 (66, 75)

72(67–80)

68(66–74)

67(66–76)

0.119a

< 0.001a

Male – No. (%)

738 (47.95)

128(53.8)

607(46.7)

226(48.5)

0.761b

0.041b

Education – Median (IQR), year

12 (9–12)

12(6–12)

12(9–12)

12(6–12)

0.758a

0.003 a

BMI – Median (IQR), kg/m2

24.0(22.5–25.4)

24.4(22.9–25.7)

23.9(22.4–25.3)

24.2(22.5–25.6)

0.407a

0.002a

Coexisting disorders – No. (%)

 Hypertension

589 (38.27)

112(47.1)

477(36.7)

164(35.2)

0.229b

0.002b

 Diabetes mellitus

304 (19.75)

52(21.8)

252(19.4)

87(18.7)

0.605b

0.377b

 Hyperlipidemia

155 (10.07)

27(11.3)

128(9.8)

42(9.0)

0.501b

0.478b

 Stroke history

87 (5.65)

40(16.8)

47(3.6)

36(7.7)

0.102b

< 0.001b

 Coronary heart disease history

212 (13.78)

66(27.7)

146(11.2)

67(14.4)

0.704b

< 0.001b

 COPD

150 (9.75)

42(17.6)

108(8.3)

42(9.0)

0.637b

< 0.001b

ICU admission – No. (%)

81 (5.26)

56(23.5)

24(1.8)

  

< 0.001b

Mechanical Ventilation, No. (%)

96 (6.24)

62(26.1)

33(2.5)

  

< 0.001b

High flow oxygen therapy, No. (%)

326 (21.18)

93(39.1)

232(17.8)

  

< 0.001b

Delirium, No. (%)

105 (6.82)

61(25.6)

43(3.3)

  

< 0.001b

  1. Abbreviation: IQR Inter-Quartile Range, BMI Body Mass Index, ICU Intensive Care Unit, COPD Chronic Obstructive Pulmonary Disease
  2. aMann-Whitney U test
  3. bPearson χ2 test