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Table 1 Results for correlation coefficient (r) and p value (p)

From: Experimental vitamin B12 deficiency in a human subject: a longitudinal investigation of the performance of the holotranscobalamin (HoloTC, Active-B12) immunoassay

Figure

Analytes

N

r

p

1b

Total B12 and HoloTC

95

0.70

2.9 × 10−15

2b

MMA and HoloTC

52

−0.52

7.6 × 10−5

3b

tHcy and HoloTC

52

−0.45

9.2 × 10−4

4b

Total B12 and MMA

55

−0.67

2.9 × 10−8

  1. N = number of concurrent test results for each analyte pair, r = Pearson’s correlation coefficient between analyte concentrations, p = p value = probability of obtaining the result ≥r, for N concurrent test results, if there is no actual linear correlation between analyte concentrations and that the apparent correlation is due to random chance