Table 1. Characteristics of study participants in the Women’s Health Initiative (WHI) Observational Study (OS) by alcohol category, stratified by menopausal hormone therapy (MHT) use.
|
Never/former MHT users (N=983)a |
Current MHT users (N=881) |
|||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Total |
Non-drinker |
Current drinker |
Total |
Non-drinker |
Current drinker |
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| Characteristic | N | Wt N | (%)b | N | Wt N | (%)b | N | Wt N | (%)b | N | Wt N | (%)b | N | Wt N | (%)b | N | Wt N | (%)b |
|
Age at blood draw (years) | ||||||||||||||||||
| <60 | 259 | 8029 | (26) | 106 | 3000 | (10) | 153 | 5029 | (16) | 297 | 10792 | (43) | 84 | 3471 | (14) | 213 | 7321 | (29) |
| 60–69 | 433 | 13635 | (44) | 170 | 5079 | (16) | 263 | 8556 | (28) | 397 | 10689 | (42) | 129 | 3765 | (15) | 268 | 6924 | (27) |
| 70–79 | 961 | 31002 | (30) | 114 | 3802 | (12) | 155 | 5536 | (18) | 187 | 3840 | (15) | 65 | 1607 | (6) | 122 | 2233 | (9) |
|
Year of blood draw | ||||||||||||||||||
| 1993–1996 | 588 | 18988 | (61) | 236 | 7148 | (23) | 352 | 11841 | (38) | 546 | 15655 | (62) | 164 | 5473 | (22) | 382 | 10182 | (40) |
| 1997–1998 | 373 | 12014 | (39) | 154 | 4733 | (15) | 219 | 7280 | (23) | 335 | 9666 | (38) | 114 | 3370 | (13) | 221 | 6296 | (25) |
|
Race | ||||||||||||||||||
| White | 844 | 27738 | (89) | 310 | 9684 | (31) | 534 | 18054 | (58) | 827 | 23616 | (93) | 244 | 7736 | (31) | 583 | 15880 | (63) |
| Non-white | 117 | 3264 | (11) | 80 | 2197 | (7) | 37 | 1067 | (3) | 54 | 1705 | (7) | 34 | 1108 | (4) | 20 | 597.5 | (2) |
|
Smoking status | ||||||||||||||||||
| Never | 489 | 15517 | (51) | 232 | 7215 | (24) | 257 | 8302 | (27) | 429 | 11624 | (46) | 162 | 5104 | (20) | 267 | 6520 | (26) |
| Former | 397 | 12531 | (41) | 128 | 3497 | (11) | 269 | 9034 | (29) | 412 | 12271 | (49) | 103 | 3153 | (12) | 309 | 9118 | (36) |
| Current | 67 | 2630 | (9) | 25 | 1048 | (3) | 42 | 1582 | (5) | 35 | 1348 | (5) | 10 | 510 | (2) | 25 | 838 | (3) |
|
Body mass index (kg m−2) | ||||||||||||||||||
| <25 | 349 | 13671 | (44) | 112 | 4214 | (14) | 237 | 9457 | (31) | 447 | 11554 | (46) | 116 | 3317 | (13) | 331 | 8236 | (33) |
| 25–<30 | 295 | 9352 | (30) | 125 | 4180 | (14) | 170 | 5172 | (17) | 258 | 7903 | (31) | 85 | 2788 | (11) | 173 | 5115 | (20) |
| 30+ | 315 | 7894 | (26) | 151 | 3401 | (11) | 164 | 4493 | (15) | 175 | 5810 | (23) | 77 | 2738 | (11) | 98 | 3071 | (12) |
|
Years since menopause | ||||||||||||||||||
| <10 | 299 | 9267 | (31) | 105 | 3144 | (11) | 194 | 6123 | (21) | 351 | 11154 | (44) | 95 | 3204 | (13) | 256 | 7950 | (31) |
| 10–<20 | 361 | 11390 | (39) | 146 | 3953 | (13) | 215 | 7437 | (25) | 331 | 8838 | (35) | 111 | 3472 | (14) | 220 | 5367 | (21) |
| 20+ | 252 | 8888 | (30) | 114 | 3924 | (13) | 138 | 4964 | (17) | 199 | 5328 | (21) | 72 | 2167 | (9) | 127 | 3161 | (12) |
|
Duration of oral contraceptive use (years) | ||||||||||||||||||
| Never | 618 | 18930 | (61) | 255 | 7722 | (25) | 363 | 11208 | (36) | 453 | 11445 | (45) | 155 | 4158 | (16) | 298 | 7287 | (29) |
| <5 | 182 | 6476 | (21) | 79 | 2367 | (8) | 103 | 4109 | (13) | 212 | 6085 | (24) | 59 | 1833 | (7) | 153 | 4252 | (17) |
| 5+ | 160 | 5518 | (18) | 55 | 1715 | (6) | 105 | 3804 | (12) | 216 | 7791 | (31) | 64 | 2853 | (11) | 152 | 4938 | (20) |
|
Caffeine intake quartile (median mg per day) | ||||||||||||||||||
| 1 | 235 | 7360 | (24) | 122 | 3638 | (12) | 113 | 3722 | (12) | 222 | 6354 | (25) | 96 | 3318 | (13) | 126 | 3036 | (12) |
| 2 | 232 | 7598 | (25) | 91 | 2798 | (9) | 141 | 4800 | (15) | 229 | 5850 | (23) | 69 | 2061 | (8) | 160 | 3789 | (15) |
| 3 | 224 | 7613 | (25) | 79 | 2838 | (9) | 145 | 4775 | (15) | 238 | 6992 | (28) | 48 | 1475 | (6) | 190 | 5517 | (22) |
| 4 | 270 | 8431 | (27) | 98 | 2607 | (8) | 172 | 5824 | (19) | 191 | 6069 | (24) | 65 | 1990 | (8) | 126 | 4079 | (16) |
|
Sedentary/sitting time (hours per day) | ||||||||||||||||||
| <5 | 332 | 11519 | (37) | 122 | 4258 | (14) | 210 | 7261 | (24) | 306 | 8285 | (33) | 98 | 3117 | (12) | 208 | 5169 | (21) |
| 5 to 9 | 398 | 12407 | (40) | 164 | 4664 | (15) | 234 | 7743 | (25) | 351 | 9994 | (40) | 107 | 3020 | (12) | 244 | 6974 | (28) |
| 10+ | 224 | 6809 | (22) | 102 | 2957 | (10) | 122 | 3853 | (13) | 220 | 6798 | (27) | 72 | 2662 | (11) | 148 | 4136 | (16) |
|
MET hours per week | ||||||||||||||||||
| None | 206 | 6139 | (20) | 99 | 2814 | (9) | 107 | 3325 | (11) | 145 | 4642 | (18) | 67 | 2188 | (9) | 78 | 2454 | (10) |
| >0–<7.5 | 216 | 6724 | (22) | 96 | 2724 | (9) | 120 | 4000 | (13) | 216 | 7180 | (28) | 69 | 2319 | (9) | 147 | 4861 | (19) |
| 7.5–15 | 224 | 7586 | (25) | 89 | 3111 | (10) | 135 | 4475 | (15) | 196 | 4671 | (18) | 73 | 2174 | (9) | 123 | 2497 | (10) |
| ⩾15 | 303 | 10407 | (34) | 101 | 3171 | (10) | 202 | 7236 | (23) | 319 | 8771 | (35) | 68 | 2109 | (8) | 251 | 6661 | (26) |
Abbreviations: kg=kilograms; MET=metabolic equivalent; MHT=menopausal hormone therapy; Wt=weighted.
a
Frequencies for never drinkers and past drinkers were similar.
b
Percentages reflect weighted counts and refer to the study cohort.