Table 2

Baseline Physiologic Characteristics of Patients in Study Practices

VariableEnhanced Practice, n=331Traditional Practice, n=279P Valuea
Continuous descriptors, t test, with median43.511.144.044.313.745.0.425
 Systolic blood pressure, mm Hg128.515.1128.0124.416.5122.0.002
 Diastolic blood pressure, mm Hg80.510.480.077.29.979.0<.001
 HOMA-IR log transformation1.
 NMRLP (nmol/L)1,692502.81,6471,527475.01,474<.001
 PrimeScreenb AIM-HI−0.10.4−0.1−0.10.4−0.0.910
 Total MET minutes, square root transformed24.919.721.327.621.223.0.123
Continuous descriptors, nonparametric test
 SF-12 mentald−0.31.1−0.2−0.31.1−0.1.522
 SF-12 physicald−0.30.8−0.1−0.41.1−0.2.385
  • AIM-HI = Americans In Motion—Healthy Interventions; BMI = body mass index. HOMA-IR = homeostatic model assessment: insulin resistance; MET = metabolic equivalent test; NMRLP = nuclear magnetic resonance lipoprotein profiles; SF-12 = SF-12 Health Survey, a short form subset of the SF-36.

  • a For BMI, fitness, SF-12 mental, and SF-12 physical we used nonparametric Wilcoxon rank sum test. For systolic and diastolic blood pressures, HOMA-IR, NMRLP, and PrimeScreen, we used analysis of variance.

  • b PrimeScreen is a brief dietary screening tool.

  • c Scored on a range from 1 to 7, based on heart rate, age, and sex, with higher scores indicating greater physical fitness.

  • d Mental or physical component summary scores of the SF-12 Health Survey, a short form subset of the SF-36.