Table 2. Simple correlation of neck circumference with various parameters.
| Men | Women | |||
|---|---|---|---|---|
| r | P | r | P | |
| Age (years) | −0.056* | 0.018 | 0.139** | <0.001 |
| SBP (mmHg) | 0.170** | <0.001 | 0.203** | <0.001 |
| DBP (mmHg) | 0.200** | <0.001 | 0.199** | <0.001 |
| BMI (kg/m2) | 0.801** | <0.001 | 0.744** | <0.001 |
| Waist circumference (cm) | 0.740** | <0.001 | 0.706** | <0.001 |
| Body fat (%) | 0.547** | <0.001 | 0.510** | <0.001 |
| WBC (×103/μl) | 0.163** | <0.001 | 0.229** | <0.001 |
| AST (IU/l) | 0.033 | 0.162 | 0.091** | <0.001 |
| ALT (IU/l) | 0.162** | <0.001 | 0.200** | <0.001 |
| Creatinine (mg/dl) | 0.120** | <0.001 | 0.090** | <0.001 |
| HbA1c (%) | 0.151** | <0.001 | 0.216** | <0.001 |
| FPG (mg/dl) | 0.159** | <0.001 | 0.122** | <0.001 |
| PG60 (mg/dl) | 0.087** | 0.005 | 0.225** | <0.001 |
| PG120 (mg/dl) | 0.149** | <0.001 | 0.250** | <0.001 |
| FPI (IU/ml) | 0.283** | <0.001 | 0.206** | <0.001 |
| PI60 (IU/ml) | 0.165** | <0.001 | 0.232** | <0.001 |
| PI120 (IU/ml) | 0.184** | <0.001 | 0.245** | <0.001 |
| HOMA-IR† | 0.317** | <0.001 | 0.234** | <0.001 |
| IGI† | 0.070* | 0.027 | 0.055 | 0.161 |
| TG (mg/dl) | 0.240** | <0.001 | 0.256** | <0.001 |
| HDL-C (mg/dl) | −0.246** | <0.001 | −0.223** | <0.001 |
| PRA (ng/ml/h)† | −0.057* | 0.016 | −0.151** | <0.001 |
| hsCRP (mg/l)† | 0.114** | <0.001 | 0.091* | 0.017 |
| ESS | 0.071** | 0.003 | −0.034 | 0.161 |
*P < 0.05, **P < 0.01, †log-transformed values were used for statistical comparison WBC, white blood cell; AST, aspartate aminotransferase; ALT, alanine aminotransferase; FPG, fasting plasma glucose; PG, postload glucose; FPI, fasting plasma insulin; PI, postload insulin; IGI, insulinogenic index; C, cholesterol; TG, triglyceride; PRA, plasma renin activity; hsCRP, high sensitivity C-reactive protein; ESS, Epworth sleepiness scale.