Trt:     Randomized treatment assignment: 1=PCI+OMT,2=OMT
Nid:     patient id: 4 digits
Age:     age: Years 
White:   white:   
Male:    male sex: 0=No, 1=Yes
Fam_hx:  family history of coronary artery disease: 0=no, 1=yes
Htn:     history of hypertension:  0=no, 1=yes
Smoker:  current smoker:  0=no, 1=yes
Diabetes:history of diabetes or FPG>=126: 0=no, 1=yes
Hx_mi:   prior MI:  0=no, 1=yes
Cabg:    prior coronary artery bypass graft surgery: 0=no, 1=yes
Hx_pci:  prior(>6months)  PCI: 0=no, 1=yes
CHF:     congestive heart disease: 0=no, 1=yes
Cerebro: history of stroke or TIA: 0=no, 1=yes
Pvd:     peripheral vascular disease: 0=no, 1=yes
Numvess: numver of diseased coronary vessels  : 0,1,2,3
Plad:    proximal left artery disease  (>70% stenosis): 0=no, 1=yes
Ef:      ejection fraction :  % of blood ejected from left ventrical
CCS:     Canadian cardiovascular society angina class: 0=none, 1=mild, infrequent, 2=  Frequent, 3=more severe, 4=even at rest
Exer:    exercise 5 or more times a week: 0=no, 1=yes
Bmi:     body mass index: kg/m2 
Sbp:     systolic blood pressure:  mm/Hg
Dbp:     diastolic blood pressure:  mm/Hg
Ldl:     low density lipoprotein(the bad one): mm/dL
Hdl:     high density lipoprotein (the good one): mm/dL
Tg:      triglycerides: mm/dL
Fpg:     fasting blood glucose: 
Gfr:     glomular filtration rate (estimated ):: 
Hct:     hematocrit:  
Can:     Canadian hospital: 0=no, 1=yes
Va:      Veterans affairs  hospital:  0=no, 1=yes
Hcs:     health care system:  1=Canada, 2=US non VA,  3=VA
Tdth:    time to death: days from randomization
Dth:     death: 0=no, 1=yes
Tmi:     time to mi: days from randomization
Mi:      MI: 0=no, 1=yes
Tdmi:    time to death or MI: days from randomization
Dmi:     death or MI (which ever is first): 0=no, 1=yes: