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. 2018 Aug 3;53(6):515–526. doi: 10.1093/abm/kay063

Table 2.

Summary of participant characteristics, M (SD)

Men Women
(n = 700) (n =393)
Age (years) 65.3 (6.9) 64.9 (7.5)
Body Mass Index* (kg/m2) 29.5 (4.8) 28.8 (6.2)
Presence of CAD***, n (%) 475 (68%) 112 (28.5%)
Presence of metabolic syndrome**, n (%) 414 (59.1%) 190 (48.3%)
Smoker*, n (%) 82 (11.7%) 31 (7.9%)
Hours of exercise/week 3.2 (3.8) 3.1 (3.2)
Years of schooling* 14.5 (3.7) 14.0 (3.7)
Marital Status***, n (%)
 Single 52 (7.4%) 46 (11.7%)
 Married/living with someone 544 (77.7%) 259 (65.9%)
 Separated/divorced/widowed 104 (14.9%) 88 (22.4%)
Annual household income***, n (%)
 ≤$39,999 120 (17.2%) 93 (23.7%)
 $40,000–59,999 153 (21.9%) 115 (29.3%)
 $60,000–99,999 230 (32.9%) 104 (26.5%)
 ≥$100,000 194 (27.7%) 69 (17.6%)
Metabolic parameters
SBP*** (mm Hg) 143.9 (20.0) 138.4 (22.2)
DBP*** (mm Hg) 73.2 (13.0) 70.1 (13.7)
Waist circumference*** (cm) 102.9 (13.6) 92.7(15.4)
Glucose*** (mmol/L) 6.4(1.4) 5.9 (1.2)
Triglycerides (mmol/L) 1.7 (0.8) 1.6 (0.8)
HDL cholesterol*** (mmol/L) 1.2 (0.3) 1.5 (0.4)
Baseline physiological measures
HR*** (bpm) 62.3 (9.8) 67.4 (9.4)
HF-HRV** (ms2) 827.0 (2990.3) 365.1 (1014.3)
LF/HF 2.51 (6.34) 2.43 (2.83)
HFnu 0.43 (0.2) 0.41 (0.2)

N may vary slightly depending on measure. CAD = coronary artery disease, SBP = systolic blood pressure, DBP = diastolic blood pressure, HDL = high-density lipoprotein cholesterol, HR = heart rate, HF-HRV = high-frequency heart-rate variability, HFnu = high-frequency heart-rate variability in normalized units. Significant sex differences for each variable are indicated with asterisks, *p < .05, **p < .01, ***p < .001.