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Table 1 Demographic and clinical characteristics of the study population. All data are reported for n = 142 participants at the time of the first serology assay, unless otherwise stated

From: Response to three doses of the Pfizer/BioNTech BNT162b2 COVID-19 vaccine: a retrospective study of a cohort of haemodialysis patients in France

Variable

Value

Age (years)

 Mean (SD)

71.1 (13.1)

 Median [IQR]

74.0 (64.0; 81.0)

 Range

(32.0; 93.0)

Sex, n (%)

 Females

39 (27.5%)

 Males

103 (72.5%)

BMI (kg/m2)

 Mean (SD)

25.3 (5.5)

 Median [IQR]

24.2 (21.7; 27.4)

 Range

(14.4; 54.2)

Diabetes, n (%)

61 (43.0)

Immunosuppressant treatment, n (%)

21 (14.8)

On the French national waiting list for kidney transplantation, n (%)

48 (33.8)

Time on dialysis (months)

 Mean (SD)

69.0 (93.4)

 Median [IQR]

34.6 (11.1; 85.2)

 Range

(0.2; 439.2)

Kt/V

 Mean (SD)

1.5 (0.3)

 Median [IQR]

1.5 (1.3; 1.7)

 Range

(0.6; 2.2)

Time interval between the first vaccine dose and Ser1 (n = 126)

 Mean (SD)

62.2 (28.9)

 Median [IQR]

75.0 (71.0; 76.0)

 Range

(−4.0; 78.0)

Time interval between the second vaccine dose and Ser1 (n = 115)

 Mean (SD)

45.7 (18.1)

 Median [IQR]

50.0 (50.0; 54.0)

 Range

(− 55.0; 57.0)

Time interval between the third vaccine and Ser2 (n = 100)

 Mean (SD)

35.0 (0.1)

 Median [IQR]

35.0 (35.0; 35.0)

 Range

(35.0; 36.0)

Leukocyte count (× 109/L)

 Mean (SD)

7.4 (2.7)

 Median [IQR]

7.0 (5.5; 8.7)

 Range

(2.5; 20.7)

Lymphocyte count (× 106/L)

 Mean (SD)

1573.7 (1149.2)

 Median [IQR]

1410.0 (1049.0; 1821.0)

 Range

(242.0; 12,479.0)

Serum albumin (g/l)

 Mean (SD)

41.3 (3.3)

 Median [IQR]

41.0 (39.0; 44.0)

 Range

(32.0; 48.0)

  1. SD Standard deviation, IQR Interquartile range, BMI Body mass index, Kt/V Dialysis rate, Ser1 First serology assay, Ser2 Second serology assay