Table 1.
General Characteristics of Women in the Dysmenorrhea Study from the Healthy Aging Study.
| White (n = 148) | Asian (n = 197) | Other Races (n = 74) | p-Value | |
|---|---|---|---|---|
| Age (Median, inter-quartile range) | 49 (31–59) | 30 (25–40) | 32 (26–45) | <0.0001 |
| BMI (Median, inter-quartile range) | 23.7 (20.9–29.0) | 22.5 (20.5–26.0) | 24.8 (22.0–28.5) | 0.0008 |
| Physical activity (MET-hour/week) * | 6.4 (3.5–9.7) | 4.4 (2.4–8.0) | 5.8 (3.4–9.6) | 0.002 |
| (Median, inter-quartile range) | ||||
| Migrant (N, %) | ||||
| No | 144 (97) | 127 (64) | 71 (96) | |
| Yes | 4 (3) | 70 (36) | 3 (4) | <0.0001 |
| Smoking status (N, %) | ||||
| Never smoker | 111 (75) | 185 (94) | 57 (77) | |
| Past smoker | 27 (18) | 11 (5.5) | 10 (14) | |
| Current smoker | 10 (7) | 1 (0.5) | 7 (9) | <0.0001 |
| Menopausal status (N, %) | ||||
| Premenopausal | 65 (44) | 168 (85) | 52 (70) | |
| Perimenopausal | 9 (6) | 17 (9) | 5 (7) | |
| Postmenopausal | 74 (50) | 12 (6) | 17 (23) | <0.0001 |
| Use of oral contraceptive (N, %) | ||||
| Yes | 126 (85) | 118 (60) | 53 (72) | <0.0001 |
| No | 22 (15) | 79 (40) | 21 (28) | |
| U.S. states (N, %) | ||||
| California | 69 (47) | 79 (42) | 46 (62) | |
| Southern | 26 (18) | 36 (19) | 13 (18) | |
| Midwestern | 14 (9) | 24 (13) | 6 (8) | |
| Northeastern | 29 (13) | 42 (22) | 6 (8) | 0.005 |
* MET-hour for moderate and vigorous physical activity/week. Continuous variables are presented as median; (inter-quartile range). Categorical variables are presented as N (%). Abbreviations: BMI = body mass index; METs = metabolic equivalents.