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. 2013 Oct 18;8(10):e77174. doi: 10.1371/journal.pone.0077174

Table 3. My Body My Story study participants' health-related characteristics: 504 black and 501 white community health center members, all US-born, non-Hispanic, ages 35–64 (Boston, MA, 2008–2010).

Variable Observed data Missing: N (%)
Black White Black White
Anthropometric
Height (cm) (mean (SD)) 167.9 (8.5) 168.3 (9.0) 0 3 (0.6)
Weight (kg) (mean (SD)) 91.2 (22.6) 83.3 (21.4) 0 2 (0.4)
Body mass index (BMI; kg/m2) (mean(SD)) 32.4 (8.0) 29.3 (6.9) 0 3 (0.6)
Obese (BMI > = 30) (%) 57.1 39.4 0 3 (0.6)
Waist circumference (cm) (mean (SD))a 104.3 (15.9) 100.0 (16.0) 0 4 (0.8)
Hip circumference (cm) (mean (SD))a 113.0 (16.4) 106.0 (15.1) 0 4 (0.8)
Waist-to-hip ratio 0.92 (0.07) 0.94 (0.07) 0 4 (0.8)
Behavioral
Smoking (%) current smoker 43.8 34.5 0 0
ex-smoker 16.9 34.5
never smoker 39.3 30.9
Physical activity (International Physical Activity Questionnaire [IPAQ]) (%) low 28.4 21.2 1 (0.2) 0
moderate 30.6 38.3
high 41.0 40.5
Sleep: usual hours on weekdays/ workdays (%) 7 or more hours 22.8 35.1 0 0
5 to 7 hours 63.1 53.9
<5 hours 14.1 11.0
Cardiovascular disease outcomes and related health variables
Blood pressure: mm Hg (mean (SD))b systolic 131.6 (16.0) 125.3 (16.1) 6 (1.2) 4 (0.8)
diastolic 83.4 (10.7) 79.4 (10.4) 6 (1.2) 4 (0.8)
Hypertension (%) yes 62.5 41.4 8 (1.6) 6 (1.2)
Cholesterol: mg/dL (mean (SD))b Total 175.9 (35.1) 185.8 (36.9) 7 (1.4) 13 (2.6)
LDL 103.0 (32.2) 112.6 (33.1) 58 (11.5) 69 (13.8)
HDL 49.4 (16.0) 49.0 (16.6) 23 (4.6) 19 (3.8)
Total/HDL cholesterol ratio 3.9 (1.6) 4.2 (1.7) 27 (5.4) 23 (4.6)
Triglycerides: mg/dL (mean (SD))b 130.9 (84.9) 140.2 (94.9) 33 (6.5) 47 (9.4)
CVD history (self-report) (%) yes 11.1 9.6 0 0
Diabetes (%) yes 25.2 15.1 4 (0.8) 12 (2.4)
Framingham cardiovascular disease (CVD) 10 year risk score (mean (SD)) everyone 10.9 (10.2) 9.6 (9.2) 47 (9.3) 45 (9.0)
only persons with no self-reported CVD history 10.1 (9.4) 9.1 (9.1) 41 (9.2) 38 (8.4)

Note: outcomes in bold font have values that differ significantly (p<0.05) comparing the black versus white study participants.

a

% measured over clothes: (a) waist: black  = 86.1%; white  = 73.5%; (b) hip: black  = 95.6%; white  = 93.2%.

b

Values for blood pressure, cholesterol, and triglycerides are reported as measured, regardless of participants' use of medication for these outcomes or their fasting status.