Table 1

Population Characteristics by Quintile of Weekly Running Time

CharacteristicNonrunners
(0)
Quintile of Running Time (min/week)
1
(<51)
2
(51–80)
3
(81–119)
4
(120–175)
5
(≥176)
Female29.112.415.514.415.917.9
Age, yrs45 ± 1140 ± 941 ± 942 ± 942 ± 943 ± 9
Body mass index, kg/m226.3 ± 4.725.2 ± 3.225.0 ± 3.224.8 ± 3.024.6 ± 3.123.9 ± 2.9
 <25.042.349.953.155.458.167.9
 25.0–29.940.642.640.339.236.428.8
 ≥30.017.17.56.65.45.53.3
Smoking status
 Never53.958.154.854.155.554.5
 Former27.329.032.835.436.138.5
 Current18.812.912.410.58.47.0
Heavy alcohol drinking17.219.318.219.218.417.9
Total amount of other physical activities except running (MET-min/week)
 059.061.669.172.471.872.1
 1–49916.611.29.98.68.36.6
 ≥50024.427.221.019.019.921.3
Systolic blood pressure, mm Hg120 ± 15118 ± 13119 ± 14119 ± 14120 ± 14120 ± 14
Diastolic blood pressure, mm Hg81 ± 1079 ± 979 ± 1079 ± 979 ± 979 ± 9
 Hypertension§31.622.122.924.024.223.9
Fasting glucose, mg/dl99.7 ± 19.197.1 ± 11.897.5 ± 13.097.3 ± 11.897.2 ± 11.697.0 ± 10.6
 Diabetes6.23.43.32.83.02.9
Total cholesterol, mg/dl208.5 ± 40.8200.3 ± 38.4201.3 ± 38.9201.7 ± 38.1200.3 ± 38.4199.2 ± 37.8
 Hypercholesterolemia29.320.821.121.521.519.6
Abnormal electrocardiogram#8.74.94.85.14.55.8
Parental cardiovascular disease27.623.023.526.227.527.4
Cardiorespiratory fitness (maximal METs)∗∗10.2 ± 2.212.5 ± 1.912.8 ± 2.013.2 ± 2.113.6 ± 2.214.6 ± 2.6

Values are mean ± SD or %.

MET = metabolic equivalent.

  • Calculated as the weight in kg divided by the square of the height in m.

  • Defined as >14 and >7 alcohol drinks per week for men and women, respectively.

  • Total physical activity levels from other leisure-time activities except running.

  • § Defined as systolic or diastolic blood pressure ≥140/90 mm Hg or history of physician diagnosis.

  • Defined as fasting glucose ≥126 mg/dl, current therapy with insulin, or history of physician diagnosis.

  • Defined as total cholesterol ≥240 mg/dl or history of physician diagnosis.

  • # Defined as abnormal resting or exercise electrocardiogram, including rhythm and conduction disturbances and ischemic ST-T wave abnormalities.

  • ∗∗ Estimated from the final treadmill speed and grade during the maximal exercise test in a subsample of 50,995 participants.