Table 3.
Baseline Characteristics of COPD-Free SLAS Participants (N=920) by Tea (All Types) Intake Categories
| None | <1 Cup Daily | 1–2 Cups Daily | ≥3 Cups Daily | ||||||
|---|---|---|---|---|---|---|---|---|---|
| N of participants | 371 | 193 | 220 | 136 | |||||
| Sex: Male | 29.9 | (111) | 36.8 | (71) | 42.7 | (94) | 52.2 | (71) | <0.001 |
| Female | 70.1 | (260) | 63.2 | (122) | 57.3 | (126) | 47.8 | (65) | |
| Age, years | 65.2 | 7.2 | 64.1 | 6.6 | 64.2 | 6.2 | 64.3 | 6.1 | 0.168 |
| Ethnicity: Chinese | 96.2 | (357) | 94.3 | (182) | 94.5 | (208) | 97.8 | (133) | 0.697 |
| Malay | 1.9 | (7) | 2.1 | (4) | 2.1 | (5) | 0.7 | (1) | |
| Indian | 1.9 | (7) | 3.6 | (7) | 3.6 | (7) | 1.5 | (2) | |
| Housing type: 1–2 rooms public | 11.3 | (42) | 13.0 | (25) | 9.5 | (21) | 7.4 | (10) | <0.001 |
| 3 rooms public | 34.5 | (128) | 24.9 | (48) | 24.1 | (53) | 19.9 | (27) | |
| 4–5 room and private housing | 54.2 | (201) | 62.2 | (120) | 66.4 | (146) | 72.8 | (99) | |
| Smoking: Never | 86.0 | (319) | 84.5 | (163) | 79.1 | (174) | 77.9 | (106) | 0.032 |
| Ex-smoker < 20 cigarettes per day | 4.0 | (15) | 7.8 | (15) | 6.4 | (14) | 8.1 | (11) | |
| Ex-smoker 20+ cigarettes per day | 3.2 | (12) | 3.1 | (6) | 4.5 | (10) | 5.9 | (8) | |
| Current smoker <20 cigarettes per day | 5.9 | (22) | 3.1 | (6) | 9.1 | (20) | 6.6 | (9) | |
| Current smoker 20+ cigarettes per day | 0.8 | (3) | 1.6 | (3) | 0.9 | (2) | 1.5 | (2) | |
| Alcohol daily | 2.2 | (8) | 2.1 | (4) | 2.3 | (5) | 5.9 | (8) | 0.074 |
| Physical activity: < 1x a month | 15.9 | (59) | 14.5 | (28) | 20.9 | (46) | 16.2 | (22) | 0.589 |
| 1× month to < 1× a week | 62.8 | (233) | 62.2 | (120) | 56.8 | (125) | 54.4 | (74) | |
| 1× a week or more | 21.3 | (79) | 23.3 | (45) | 22.3 | (49) | 29.4 | (40) | |
| BMI, kg/m2 | 23.9 | 3.7 | 23.8 | 3.7 | 24.1 | 3.5 | 23.4 | 2.9 | 0.392 |
Note: Figures shown are % (N).