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Table 2 Paired t-test comparing the Mean ± SD ESR values of the study participants using EDTA and TSC Whole Blood

From: A comparison of erythrocyte sedimentation rates of bloods anticoagulated with trisodium citrate and EDTA among TB presumptive patients at the University of Gondar comprehensive specialized hospital, northwest Ethiopia

Variables

Category

Mean and SD of ESR in mm/h

Paired differences

Mean ± SD

P-value

EDTA

TSC

Mean ± SD

Mean ± SD

Sex

M (46)

59.57 ± 42.31

53.57 ± 44.61

6.00 ± 14.09

0.006

F (24)

54.71 ± 40.44

46.04 ± 41.82

8.67 ± 12.92

0.003

Age in year

15–25 (17)

36.53 ± 36.07

28.88 ± 36.26

7.45 ± 9.99

0.006

26–35 (18)

56.78 ± 43.76

47.11 ± 45.91

9.67 ± 14.82

0.013

36–50 (21)

62.52 ± 43.10

59.90 ± 45.23

2.62 ± 13.78

0.394

> 50 (14)

78.36 ± 32.73

69.43 ± 37.09

8.93 ± 15.59

0.052

Residence

Rural (46)

54.76 ± 41.08

47.80 ± 42.55

6.96 ± 14.83

0.003

Urban (24)

63.92 ± 42.36

57.08 ± 45.61

6.83 ± 11.38

0.007

Previous TB History

Yes (17)

69.71 ± 41.20

65.00 ± 43.86

4.71 ± 16.60

0.260

No (53)

54.11 ± 41.20

46.49 ± 42.85

7.62 ± 12.68

0.000

TB Status

Positive (7)

88.71 ± 24.40

82.57 ± 39.94

6.14 ± 16.29

0.357

Negative (63)

54.48 ± 41.65

47.48 ± 42.76

7.00 ± 13.49

0.000

Total

57.90 ± 41.45

50.99 ± 43.52

6.91 ± 13.66

0.000

  1. SD standard deviation