Table 1 COMPASS participant and sample characteristics
From: Clinical trial participant characteristics and saliva and DNA metrics
Characteristic | M (SD) or % | Range |
|---|---|---|
Participants (n = 566) | ||
Age (years) | 49.1 (11.4) | 19.0-76.8 |
Gender (% female) | 67.8 | |
Ethnicity (% NHC) | 88.5 | |
Years of formal schooling | 14.2 (2.2) | 6.0-24.0 |
Cigarettes per day (CPD) | 20.1 (8.2) | 4.0-80.0 |
Saliva (n = 565) | ||
Time between kit receipt and DNA extraction (days) | 63.8 (43.1) | 2.0-203.0 |
Volume (ml) | 4.5 (1.1) | 1.0-7.5† |
Visual clarity (% "cloudy") | 29.6 | |
DNA (n = 539) | ||
Processed with protocol 2 (%) | 80.0 | |
DNA yield by UV (ug) | 155.2 (156.1) | 1.5-1153.3 |
DNA yield by PG (ug) | 82.8 (79.4) | 0.9-549.3 |
DNA yield by qPCR (ug) | 61.5 (58.6) | 0.8-344.3 |
Visual clarity (% "cloudy") | 17.2 | |
A260/280 | 1.83 (0.10) | 1.42-2.13 |