Research Article
Shorter Leukocyte Telomere Length in Midlife Women with Poor Sleep Quality
Table 1
Characteristics of the study sample (
unless otherwise noted).
| Variable | Mean or % | SD |
| Age (years) | 57.5 | 4.4 | Race (% Caucasian) | 84.5% | | Body mass index (kg/m2) | 24.4 | 4.7 | Household income (% ≥75 K/year)a | 67.2% | | Perceived stress (PSS score)b | 23.2 | 6.0 | Time in bed (hours)c | 8.0 | 1.0 | Sleep duration (hours)d | 7.2 | 1.0 | Sleep onset latency (minutes) | 17.2 | 18.9 | Sleep quality (1 = very bad, 5 = very good) | 3.8 | 0.8 | Telomere Length (T/S converted to base pairs) | 5547.0 | 330.7 |
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a, b, c, d.
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