Descriptive characteristics by usual physical activity levels in 2,082 postmenopausal women ages 55-81 y not on HRT in EPIC-Norfolk Study (1997-2000)
| Quartiles of usual physical activity | P for association | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. | 1 (<18.5 MET h/wk) | 2 (18.5 to <43.9 MET h/wk) | 3 (43.9 to <86.8 MET h/wk) | 4 (>86.8 MET h/wk) | ||||||||
| Mean (SD) | ||||||||||||
| Age (y) | 2,082 | 69.0 (6.4) | 66.9 (6.2) | 64.1 (6.3) | 61.7 (6.2) | <0.001 | ||||||
| BMI (kg/m2) | 2,082 | 27.1 (4.5) | 26.6 (4.0) | 26.2 (3.9) | 26.7 (4.8) | 0.003 | ||||||
| Alcohol consumption (units) | 2,082 | 3.96 (5.30) | 4.38 (5.00) | 5.06 (6.25) | 4.08 (5.10) | 0.011 | ||||||
| Age at menopause (y) | 2,077 | 49.8 (6.4) | 49.9 (5.8) | 50.0 (4.0) | 49.6 (5.4) | 0.84 | ||||||
| No. (%) | ||||||||||||
| Smoking status | 2,061 | |||||||||||
| Current | 61 (7.1) | 46 (6.7) | 26 (7.1) | 21 (13.2) | 0.16 | |||||||
| Former | 279 (32.7) | 218 (31.9) | 124 (34.1) | 45 (28.3) | ||||||||
| Never | 514 (60.2) | 420 (61.4) | 214 (58.8) | 93 (58.5) | ||||||||
| Age at menarche (y) | 1,985 | |||||||||||
| <13 | 303 (37.0) | 234 (35.5) | 140 (39.8) | 66 (42.3) | 0.32 | |||||||
| ≥13 | 515 (63.0) | 425 (64.5) | 212 (60.2) | 90 (57.7) | ||||||||
| Age at first birth (y) | 1,751 | |||||||||||
| <20 | 38 (5.3) | 25 (4.2) | 19 (6.1) | 10 (7.5) | 0.02 | |||||||
| 20 to <30 | 568 (79.3) | 474 (80.2) | 267 (85.9) | 109 (82.0) | ||||||||
| ≥30 | 110 (15.4) | 92 (15.6) | 25 (8.0) | 14 (10.5) | ||||||||
| Parity | 2,089 | |||||||||||
| 0 | 149 (17.2) | 96 (14.0) | 53 (14.5) | 28 (17.3) | 0.34 | |||||||
| 1-2 | 463 (53.4) | 356 (51.8) | 194 (53.2) | 88 (54.3) | ||||||||
| ≥3 | 255 (29.4) | 235 (34.2) | 118 (32.3) | 46 (28.4) | ||||||||
| Past oral contraceptive use | 1,955 | |||||||||||
| Ever | 187 (23.0) | 196 (30.3) | 146 (42.3) | 63 (41.7) | <0.001 | |||||||
| Never | 625 (77.0) | 451 (69.7) | 199 (57.7) | 88 (58.3) | ||||||||
| Past HRT use | 2,080 | |||||||||||
| Ever | 116 (13.4) | 121 (17.6) | 82 (22.5) | 50 (30.9) | <0.001 | |||||||
| Never | 750 (86.6) | 566 (82.4) | 283 (77.5) | 112 (69.1) | ||||||||