Table 2.
Baseline characteristics by height in women
| Total | Q1 | Q2 | Q3 | Q4 | P valuesa | |
|---|---|---|---|---|---|---|
| Range | 110–148 | 149–152 | 153–156 | 157–198 | ||
| Number | 53,661 | 13,727 | 15,733 | 13,478 | 10,723 | |
| Age, mean (SD) | 51.9 (8.0) | 55.0 (7.9) | 52.4 (7.8) | 50.6 (7.6) | 48.7 (7.4) | <0.001 |
| Smoking status, n (%) | ||||||
| Nonsmoker | 49,041 (91.4) | 12,803 (93.3) | 14,503 (92.2) | 12,238 (90.8) | 9,497 (88.6) | <0.001 |
| Past smoker | 822 (1.5) | 157 (1.1) | 234 (1.5) | 205 (1.5) | 226 (2.1) | |
| Current smoker | 3,582 (6.7) | 698 (5.1) | 927 (5.9) | 987 (7.3) | 970 (9.0) | |
| Unknown | 216 (0.4) | 69 (0.5) | 69 (0.4) | 48 (0.4) | 30 (0.3) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Regular drinker, n (%) | ||||||
| No | 22,094 (41.2) | 5,817 (42.4) | 6,738 (42.8) | 5,489 (40.7) | 4,050 (37.8) | <0.001 |
| Yes | 7,139 (13.3) | 1,213 (8.8) | 1,920 (12.2) | 1,990 (14.8) | 2,016 (18.8) | |
| Unknown | 24,428 (45.5) | 6,697 (48.8) | 7,075 (45.0) | 5,999 (44.5) | 4,657 (43.4) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Leisure‐time physical activity, n (%) | ||||||
| <1 time/week | 41,096 (76.6) | 10,801 (78.7) | 12,207 (77.6) | 10,257 (76.1) | 7,831 (73.0) | <0.001 |
| ≥1 time/week | 10,203 (19.0) | 2,224 (16.2) | 2,815 (17.9) | 2,669 (19.8) | 2,495 (23.3) | |
| Unknown | 2,362 (4.4) | 702 (5.1) | 711 (4.5) | 552 (4.1) | 397 (3.7) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| History of diabetes mellitus, n (%) | ||||||
| No | 31,240 (58.2) | 8,410 (61.3) | 9,467 (60.2) | 7,731 (57.4) | 5,632 (52.5) | <0.001 |
| Yes | 1,589 (3.0) | 521 (3.8) | 468 (3.0) | 343 (2.5) | 257 (2.4) | |
| Unknown | 20,832 (38.8) | 4,796 (34.9) | 5,798 (36.9) | 5,404 (40.1) | 4,834 (45.1) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Green tea consumption, n (%) | ||||||
| ≤3–4 cups/week | 12,975 (24.2) | 3,503 (25.5) | 3,861 (24.5) | 3,143 (23.3) | 2,468 (23.0) | <0.001 |
| 1–2 cups/day | 11,190 (20.9) | 2,680 (19.5) | 3,198 (20.3) | 2,897 (21.5) | 2,415 (22.5) | |
| 3–4 cups/day | 14,810 (27.6) | 3,669 (26.7) | 4,348 (27.6) | 3,782 (28.1) | 3,011 (28.1) | |
| ≥5 cups/day | 14,167 (26.4) | 3,716 (27.1) | 4,175 (26.5) | 3,544 (26.3) | 2,732 (25.5) | |
| Unknown | 519 (1.0) | 159 (1.2) | 151 (1.0) | 112 (0.8) | 97 (0.9) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Seaweed consumption, n (%) | ||||||
| ≤2 days/week | 24,762 (46.1) | 6,233 (45.4) | 7,112 (45.2) | 6,230 (46.2) | 5,187 (48.4) | <0.001 |
| 3–4 days/week | 18,183 (33.9) | 4,735 (34.5) | 5,312 (33.8) | 4,640 (34.4) | 3,496 (32.6) | |
| Almost daily | 10,205 (19.0) | 2,565 (18.7) | 3,150 (20.0) | 2,511 (18.6) | 1,979 (18.5) | |
| Unknown | 511 (1.0) | 194 (1.4) | 159 (1.0) | 97 (0.7) | 61 (0.6) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Health screening in previous year, n (%) | ||||||
| No | 10,882 (20.3) | 2,186 (15.9) | 3,122 (19.8) | 2,907 (21.6) | 2,667 (24.9) | <0.001 |
| Yes | 42,437 (79.1) | 11,411 (83.1) | 12,510 (79.5) | 10,510 (78.0) | 8,006 (74.7) | |
| Unknown | 342 (0.6) | 130 (0.9) | 101 (0.6) | 61 (0.5) | 50 (0.5) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Menopausal status, n (%) | ||||||
| No | 21,646 (40.3) | 3,519 (25.6) | 5,839 (37.1) | 6,256 (46.4) | 6,032 (56.3) | <0.001 |
| Yes | 30,253 (56.4) | 9,608 (70.0) | 9,366 (59.5) | 6,840 (50.7) | 4,439 (41.4) | |
| Unknown | 1,762 (3.3) | 600 (4.4) | 528 (3.4) | 382 (2.8) | 252 (2.4) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
| Age at menarche, n (%) | ||||||
| ≤13 | 14,267 (26.6) | 2,548 (18.6) | 3,883 (24.7) | 4,074 (30.2) | 3,762 (35.1) | <0.001 |
| 14–15 | 23,323 (43.5) | 5,481 (39.9) | 6,949 (44.2) | 6,068 (45.0) | 4,825 (45.0) | |
| ≥16 | 14,599 (27.2) | 5,286 (38.5) | 4,464 (28.4) | 2,960 (22.0) | 1,889 (17.6) | |
| Unknown | 1,472 (2.7) | 412 (3.0) | 437 (2.8) | 376 (2.8) | 247 (2.3) | |
| Total | 53,661 (100.0) | 13,727 (100.0) | 15,733 (100.0) | 13,478 (100.0) | 10,723 (100.0) | |
Q, quartile, SD, standard deviation.
a
P‐values were calculated by analysis of variance for continuous values or chi‐squared test for categorical values to compare the distribution of baseline characteristics according to the height category.