Table 1: Baseline patient characteristics
CharacteristicAll eligible patients
n = 293
Patient with 12-month laboratory assessment
n = 253
Patient without 12-month laboratory assessment
n = 40
p values*
Age, yr, mean ± SD59.1 ± 9.760.3 ± 9.051.4 ± 11.1< 0.001
Female sex, no. (%)152 (52)131 (52)21 (53)0.93
Charlson comorbidity index0.8 ± 0.90.9 ± 0.90.6 ± 0.90.02
Height, m, mean ± SD1.7 ± 0.11.7 ± 0.11.7 ± 0.10.02†
Weight, kg, mean ± SD90.8 ± 14.789.4 ± 13.499.5 ± 18.8< 0.001
BMI, kg/m2, mean ± SD31.9 ± 3.331.7 ± 3.433.4 ± 2.80.002
Current smoker, no. (%)29 (10)27 (11)2 (5)0.55
PROCAM risk, %, mean ± SD8.2 ± 6.48.6 ± 6.35.6 ± 6.80.006
VO2max, %, mean ± SD46.8 ± 24.046.2 ± 24.050.4 ± 24.60.31
HEI-C, mean ± SD57.9 ± 14.258.6 ± 14.352.8 ± 12.80.03
Mediterranean diet score, mean ± SD4.7 ± 1.64.8 ± 1.64.3 ± 1.70.12
LDL-C, mmol/L, mean ± SD2.6 ± 1.12.6 ± 1.12.9 ± 1.00.06
Metabolic syndrome criteria‡
1. Blood pressure or pharmacotherapy, no. (%) meeting criteria256 (87)227 (90)29 (73)0.002
    Systolic blood pressure, mm Hg, mean ± SD 133.5 ± 14.5133.5 ± 14.8133.8 ± 12.90.88
    Diastolic blood pressure, mm Hg, mean ± SD80.6 ± 9.179.9 ± 9.084.9 ± 9.00.001
    Received pharmacotherapy for elevated blood pressure, no. (%)218 (74)196 (77)22 (55)0.002
2. Fasting blood glucose or pharmacotherapy, no. (%) meeting criteria240 (82)212 (84)28 (70)0.04
    Blood glucose, mmol/L, mean ± SD6.6 ± 1.46.6 ± 1.46.1 ± 1.10.04
Received pharmacotherapy for elevated blood glucose levels, no. (%)129 (44)120 (47)9 (22)0.003
3. Triglyceride or pharmacotherapy, no. (%) meeting criteria187 (64)162 (64)25 (62)0.85
    Triglyceride level, mmol/L, mean ± SD2.2 ± 1.72.2 ± 1.82.2 ± 1.10.98
    Pharmacotherapy for cholesterol, no. (%)11 (4)10 (4)1 (2)0.65
4. HDL-C, no. (%) meeting criteria138 (47)119 (47)19 (47)0.99
    HDL-C, mmol/L, mean ± SD1.2 ± 0.31.2 ± 0.31.2 ± 0.30.33
5. Waist circumference, no. (%) meeting criteria277 (95)237 (94)40 (100)0.1
    Waist circumference, cm, mean ± SD108.1 ± 9.4107.3 ± 8.9113.4 ± 10.7< 0.001

Note: BMI = body mass index, HDL-C = high-density lipoprotein cholesterol, HEI-C = Canadian Healthy Eating Index, LDL-C = low-density lipoprotein cholesterol, PROCAM = (estimated risk of major cardiac event in next 10 years), SD = standard deviation.

*Baseline characteristics were compared between patients who did and did not have the 12-month laboratory assessment using independent t test for continuous variables and the χ2 test for categorical variables.

†Although the height rounds to 1.7 m in both groups, the actual values are 1.72 and 1.68, which is a significant (p = 0.02) but not clinically important difference.

‡Metabolic syndrome criteria defined as follows: blood pressure ≥ 130/85 mm Hg or receiving pharmacotherapy; fasting blood glucose ≥ 5.6 mmol/L or receiving pharmacotherapy; triglyceride level ≥ 1.7 mmol/L or receiving pharmacotherapy; male patients with an HDL-C level < 1.0 mmol/L or female patients with an HDL-C level < 1.3 mmol/L; waist circumference as determined by a prespecified technique (Europid, white, sub-Saharan African, Mediterranean, middle eastern [Arab] patients ≥ 94 cm for men, 80 cm for women; Asian and South Central American patients ≥ 90 cm for men and 80 cm for women; white American and Canadian patients ≥ 102 cm for men, 88 cm for women.