Table 4.
Association between different components of MetS and habitual tea consumption among overall, male, and female participants.
| Components of MetS | Habitual Tea Consumption | Overall | Male | Female | |||
|---|---|---|---|---|---|---|---|
| n of Cases (%) | OR (95% CI) * | n of Cases (%) | OR (95% CI) | n of Cases (%) | OR (95% CI) | ||
| Central obesity | None | 12,948 (42.04) | Ref. | 3333 (29.32) | Ref. | 9615 (49.47) | Ref. |
| 1~2 cups/day | 1883 (40.67) | 1.082 (0.988–1.184) | 798 (31.98) | 1.184 (1.039–1.35) | 1085 (50.82) | 0.999 (0.881–1.133) | |
| 3~4 cups/day | 1452 (42.28) | 1.2 (1.081–1.332) | 745 (34.78) | 1.317 (1.146–1.513) | 707 (54.72) | 1.076 (0.918–1.262) | |
| Over 5 cups/day | 1984 (40.56) | 1.354 (1.236–1.484) | 1201 (34.95) | 1.372 (1.221–1.541) | 783 (53.81) | 1.41 (1.209–1.644) | |
| p for trend | - | <0.0001 | – | <0.0001 | – | 0.0001 | |
| BP elevated | None | 14,604 (47.41) | Ref. | 6151 (54.12) | Ref. | 8453 (43.49) | Ref. |
| 1~2 cups/day | 2213 (47.8) | 0.929 (0.866–0.996) | 1332 (53.39) | 0.956 (0.869–1.051) | 881 (41.26) | 0.912 (0.821–1.012) | |
| 3~4 cups/day | 1734 (50.5) | 0.889 (0.821–0.963) | 1179 (55.04) | 0.933 (0.843–1.032) | 555 (42.96) | 0.854 (0.751–0.973) | |
| Over 5 cups/day | 2608 (53.32) | 0.906 (0.845–0.972) | 1980 (57.63) | 0.952 (0.874–1.036) | 628 (43.16) | 0.922 (0.815–1.043) | |
| p for trend | - | 0.0002 | – | 0.1389 | – | 0.0118 | |
| TG elevated | None | 8491 (27.58) | Ref. | 3845 (33.83) | Ref. | 4649 (23.92) | Ref. |
| 1~2 cups/day | 1405 (30.35) | 1.004 (0.934–1.078) | 956 (38.32) | 1.185 (1.077–1.303) | 449 (21.03) | 0.815 (0.727–0.914) | |
| 3~4 cups/day | 1055 (30.72) | 0.909 (0.837–0.987) | 728 (33.99) | 0.91 (0.82–1.01) | 327 (25.3) | 0.976 (0.852–1.118) | |
| Over 5 cups/day | 1440 (29.44) | 0.797 (0.741–0.857) | 1179 (34.31) | 0.913 (0.836–0.996) | 261 (17.94) | 0.625 (0.541–0.722) | |
| p for trend | - | <0.0001 | – | 0.0259 | – | <0.0001 | |
| HDL-C decreased | None | 13,093 (42.51) | Ref. | 3211 (28.25) | Ref. | 9882 (50.84) | Ref. |
| 1~2 cups/day | 1904 (41.12) | 1.073 (1.003–1.148) | 782 (31.34) | 1.133 (1.026–1.251) | 1122 (52.55) | 1.039 (0.947–1.14) | |
| 3~4 cups/day | 1293 (37.65) | 0.989 (0.915–1.07) | 628 (29.32) | 1.025 (0.921–1.142) | 665 (51.47) | 0.974 (0.867–1.095) | |
| Over 5 cups/day | 1680 (34.35) | 0.97 (0.905–1.04) | 1021 (29.71) | 1.1 (1.005–1.203) | 659 (45.29) | 0.799 (0.715–0.894) | |
| p for trend | - | 0.5893 | – | 0.0424 | – | 0.0018 | |
| FPG elevated | None | 7263 (23.58) | Ref. | 3100 (27.27) | Ref. | 4163 (21.42) | Ref. |
| 1~2 cups/day | 1076 (23.24) | 0.91 (0.843–0.982) | 636 (25.49) | 0.894 (0.807–0.99) | 440 (20.61) | 0.94 (0.838–1.055) | |
| 3~4 cups/day | 853 (24.84) | 0.89 (0.817–0.97) | 581 (27.12) | 0.897 (0.805–0.999) | 272 (21.05) | 0.893 (0.773–1.031) | |
| Over 5 cups/day | 1161 (23.74) | 0.772 (0.715–0.833) | 911 (26.51) | 0.808 (0.738–0.885) | 250 (17.18) | 0.704 (0.608–0.815) | |
| p for trend | - | <0.0001 | – | <0.0001 | – | <0.0001 | |
* Adjusted for gender (in overall analysis), age, BMI, living area, education level, income, marital status, current smoker (Yes/No), excessive drinking (Yes/No), physical activity, sleeping duration, sedentary behavior, medical examination within one year (Yes/No), DASH-diet score, daily energy intake (Kcal/day), and family history for hypertension and diabetes. Indicated by odds ratio (OR) and 95% confidence interval (CI).