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Table 1 Demographic characteristics of the study population. DNA methylation profiles were available for all subjects, while gene and miRNA expression profiles were available as indicated in the Table

From: Evolving DNA methylation and gene expression markers of B-cell chronic lymphocytic leukemia are present in pre-diagnostic blood samples more than 10 years prior to diagnosis

 

Total

Cases

Controls

Total (N)

347

28

319

EPIC Italy; N (% of total)

133

9

124

NSHDS; N (% of total)

214

19

195

Males; N (% of total)

135

18

117

Females; N (% of total)

212

10

202

Age; mean (SD)

52.3 (7.7)

52.0 (8.1)

52.3 (7.7)

BMI; mean (SD)

26 (4.1)

25.6 (3.3)

26.0 (4.1)

Smokers (%)

72 (2.1%)

2 (7.1%)

70 (2.2%)

Subjects with transcriptomic profile (N)

307

25

282

Subjects with miRNA expression profile (N)

111

11

100