Table 2.
Sociodemographic factors and hs-CRP levels by oral contraceptive (OC) use among Korean women.
| Characteristics | OC User (n = 699) |
Non-OC User (n = 4633) |
p-Value 1 |
|---|---|---|---|
| Age (Years), Mean (SD) | 36.9 (9.2) | 37.1 (9.3) | 0.621 |
| BMI, Mean (SD) | 22.9 (3.9) | 22.8 (3.7) | 0.460 |
| Average Household Income, USD (SD) | 4072 (2562) | 4254 (2438) | 0.068 |
| Education, n (% Within Group) | <0.001 | ||
| <High School | 67 (9.6) | 194 (4.2) | |
| High School | 278 (39.8) | 1805 (39.0) | |
| >High School | 354 (50.6) | 2634 (56.9) | |
| Cigarette Smoking, n (% Within Group) | <0.001 | ||
| Yes | 83 (11.9) | 270 (5.8) | |
| No | 616 (88.1) | 4363 (94.2) | |
| Alcohol Drinking, n (% Within Group) | 0.642 | ||
| Yes | 440 (63.0) | 2874 (62.0) | |
| No | 259 (37.1) | 1759 (38.0) | |
| hs-CRP, mg/L (SE) | 1.087 (0.061) | 0.953 (0.026) | 0.045 |
1p-values for differences between the OC use and non-use groups were determined by the t test or Mantel–Haenszel chi-squared test. BMI: body mass index; SD: standard deviation; OC: oral contraceptive; hs- CRP: high-sensitivity C-reactive protein.