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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: JAMA Intern Med. 2014 Jul;174(7):1144–1157. doi: 10.1001/jamainternmed.2014.1984

Table 1.

Baseline Participant Characteristics

Characteristic Total Sample
(n=385)
Counselor
Group
(n =192)
Web Group
(n =193)
P-value
Demographics
Age, mean (SE) 62 (0.4) 63 (0.5) 62 (0.6) 0.09
Female sex, No. (%) 186 (48) 102 (53) 84 (43) 0.06
Race, No. (%) 0.49
  African American 92 (24) 43 (22) 49 (25)
  White 292 (76) 150 (78) 142 (74)
Total household income, No. (%) 0.68
  < $20,000 87 (23) 39 (20) 48 (25)
  $20–39,999 112 (29) 61 (32) 51 (26)
  $40–69,999 70 (18) 33 (17) 37 (19)
  $70–99,999 37 (10) 19 (10) 18 (9)
  $100,000 or more 28 (7) 12 (6) 16 (8)
Currently employed full time, No. (%) 125 (32) 63 (33) 62 (32) 0.88
Health insurance, No. (%)a 0.24
  Commercial 248 (64) 125 (65) 123 (64)
  Medicare 62 (16) 35 (18) 27 (14)
  Medicaid 29 (7) 15 (8) 14 (7)
  No insurance 46 (12) 17 (9) 29 (15)
Education, No. (%) 0.68
  Less than high school 68 (18) 37 (19) 31 (16)
  High school 144 (37) 69 (36) 75 (39)
  College graduate or advanced degree 173 (45) 86 (45) 87 (45)
Less than 7–8th grade reading level, No. (%) 53 (14) 23 (12) 30 (15) 0.31
Risk factors for CHD, No. (%)
  High blood pressure 332 (86) 166 (86) 166 (86) 0.90
  High blood cholesterol 326 (85) 162 (84) 164 (85) 0.87
  Current smoker 113 (29) 55 (29) 58 (30) 0.76
  Diabetes 236 (61) 124 (65) 112 (58) 0.19
Medication use relevant to CHD risk reduction, No. (%)
  Taking blood pressure medicine 289 (75) 144 (75) 145 (75) 0.85
  Taking cholesterol medicine 236 (61) 119 (62) 117 (61) 0.78
  Taking aspirin (limited to males) 84 (42) 38 (42) 46 (42) 0.99
Factors affecting medication and lifestyle adherence, No. (%)
  Prescription drug plan 335 (87) 173 (90) 162 (84) 0.07
  Number of medications per day 0.27
    None 10 (3) 6 (3) 4 (2)
    1–2 42 (11) 18 (9) 24 (12)
    3–5 144 (37) 69 (35) 75 (39)
    6–9 130 (34) 74 (38) 56 (29)
    10 or more 60 (16) 26 (13) 34 (18)
  Living with spouse or someone like spouse 263 (68) 124 (65) 139 (72) 0.12
  Comfort with computer 255 (66) 128 (67) 127 (66) 0.86
Other outcomes, mean (SE)
  Framingham Risk Scoreb 16.9 (0.3) 16.9 (0.4) 16.9 (0.4) 0.60
  Weight in kg 96 (1.1) 95 (1.6) 97 (1.5) 0.26
  BMI, kg/m2 33 (0.4) 33 (0.5) 34 (0.5) 0.71
  Systolic blood pressure 134 (0.9) 134 (1.2) 134 (1.3) 0.68
  Diastolic blood pressure 79 (0.6) 78 (0.7) 80 (0.9) 0.10
  Total cholesterol 194 (2.4) 197 (3.4) 190 (3.3) 0.14
  HDL-C 41 (0.5) 42 (0.8) 39 (0.7) 0.03
  LDL-C 122 (2.0) 125 (2.9) 119 (2.8) 0.26
  Hgb A1c 6.9 (0.1) 7.0 (0.1) 6.8 (0.1) 0.07
  hsCRP 4.7 (0.5) 4.9 (0.6) 4.6 (0.8) 0.29
  Fruit and vegetables servings/day 4.1 (0.1) 4.1 (0.1) 4.1 (0.1) 0.56
  Minutes of walking per week 77 (8.3) 74 (11.3) 79 (12.0) 0.63
  Steps per day (pedometer, n = 253) 4691 (168.4) 4604 (225.6) 4776 (250.0) 0.71
  Morisky medication adherence scale, No. (%) 0.75
    Low adherence 94 (27) 49 (29) 45 (26)
    Medium adherence 136 (39) 65 (39) 71 (40)
    High adherence 114 (33) 54 (32) 60 (34)
a

Categorized as commercial if participant had commercial and other insurance

b

Framingham risk scores calculated as percent chance of developing angina, myocardial infarction, or coronary heart disease death over a 10 year time frame

Abbreviations: CHD, coronary heart disease; BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; Hgb A1c, hemoglobin A1c; hsCRP, high sensitivity C-reactive protein.