Table 1.
Selection criteria identifying subjects with combined risk factors for PAH.
| Risk Factors | NHANES Questionaire | Subjects with Risk Factors for PAH ** | Subjects with no Risk Factors for PAH |
|---|---|---|---|
| Systemic Hypertension | Yes/No | Yes = 1 | No = 0 (Zero) |
| Diabetes | Yes/No | Yes = 1 | No = 0 (Zero) |
| Thyroid Problems | Yes/No | Yes = 1 | No = 0 (Zero) |
| Uric Acid Level | |||
| Male | Normal (<419 mmol/L) Abnormal (>420 mmol/L) |
Abnormal = 1 | Normal = 0 |
| Female | Normal (<359 mmol/L) Abnormal (>360 mmol/L) |
Abnormal = 1 | Normal = 0 |
| Insulin Status * | Normal (<1.99, Insulin Sensitive (IS)) Abnormal (>2.00, Insulin Resistance (IR)) |
IR = 1 | IS = 0 |
| Female Hormone (Only for Female Participants). | Yes/No | Yes = 1 | No = 0 (Zero) |
* Insulin status: Calculated as triglycerides level/HDL–cholesterol level. If <1.99 “insulin sensitive (IS)” or if >2.00 “insulin resistance (IR)”. ** subjects with risk factors for PAH (sum of risk score, this means maximum (5 for males) and (6 for females since they have 1 extra criterion (using hormones). Thus, participants were selected in the group with risk factors of PAH if the total score was >2 in males or >3 in females.