Table 3

Telomere lengths in DC patients compared with DC relatives

Cell typeDC patients
DC relatives
DC patients vs DC relatives
N abnormalN abnormalOR95% CISens (%)Spec (%)PPV (%)NPV (%)
Granulocytes 24/25 8/51 129 15-5419 96 84 75 98 
Lymphocytes* 24/26* 2/54* 312* 34-3694* 92* 96* 92* 96* 
CD45RA+/CD20− naïve T cells* 25/26* 3/54* 425* 37-17734* 96* 94* 89* 98* 
CD45− memory T cells 22/26 2/54 143 21-1443 85 96 92 93 
CD20+ B-cells* 24/26* 4/54* 150* 22-1508* 92* 93* 86* 96* 
CD57+ NK/NKT cells 18/25 1/50 129 14-5347 72 98 95 88 
Total leukocytes 26/26 5/54 ∞ — 100 91 84 100 
Granulocytes, lymphocytes 23/25 2/51 282 30-3349 92 96 92 96 
Granulocytes, naïve T cells, B cells 23/25 2/51 282 30-3349 92 96 92 96 
Lymphocytes, naïve T cells, B cells* 24/26* 2/54* 312* 34-3694* 92* 96* 92* 96* 
Cell typeDC patients
DC relatives
DC patients vs DC relatives
N abnormalN abnormalOR95% CISens (%)Spec (%)PPV (%)NPV (%)
Granulocytes 24/25 8/51 129 15-5419 96 84 75 98 
Lymphocytes* 24/26* 2/54* 312* 34-3694* 92* 96* 92* 96* 
CD45RA+/CD20− naïve T cells* 25/26* 3/54* 425* 37-17734* 96* 94* 89* 98* 
CD45− memory T cells 22/26 2/54 143 21-1443 85 96 92 93 
CD20+ B-cells* 24/26* 4/54* 150* 22-1508* 92* 93* 86* 96* 
CD57+ NK/NKT cells 18/25 1/50 129 14-5347 72 98 95 88 
Total leukocytes 26/26 5/54 ∞ — 100 91 84 100 
Granulocytes, lymphocytes 23/25 2/51 282 30-3349 92 96 92 96 
Granulocytes, naïve T cells, B cells 23/25 2/51 282 30-3349 92 96 92 96 
Lymphocytes, naïve T cells, B cells* 24/26* 2/54* 312* 34-3694* 92* 96* 92* 96* 

N indicates number; abnormal, below 1st percentile (numerator and denominator indicate the number abnormal/number assayed for each cell type); OR, odds ratio in favor of being a DC patient; CI, confidence interval; Sens, sensitivity, the proportion of those with disease who were correctly identified; Spec, specificity, the proportion of nondiseased people who were correctly identified as negative; PPV, positive predictive value, the proportion of those who test positive who actually have the disease; NPV, negative predictive value, the proportion of those who test negative who do not have the disease; —, not applicable.

*

The leukocyte subsets with the best performance characteristics.

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