Table 1.
Sociodemographic characteristics of women participating in a randomized clinical trial (n 54)
| Characteristic | Mean | sd |
|---|---|---|
| Age (years) | 54·4 | 12·1 |
| BMI (kg/m2) | 27·3 | 5·6 |
| Cruciferous vegetable intake (g/d)* | 81·7 | 57·3 |
| Total SFN ITC from urine (μm; n 43) | 0·08 | 0·07 |
| Total SFN ITC from plasma (μm; n 34) | 0 | 0 |
| n | %‡ | |
| Race | ||
| White | 40 | 74·07 |
| Non-white/missing | 14 | 25·93 |
| Family history of breast cancer | ||
| Yes | 20 | 37·04 |
| No | 34 | 62·96 |
| Smoking | ||
| Current | 2 | 3·70 |
| Former | 12 | 22·22 |
| Never | 32 | 59·26 |
| Missing | 8 | 14·81 |
| Alcohol | ||
| Current | 21 | 38·89 |
| Former | 6 | 11·11 |
| Never | 18 | 33·33 |
| Missing | 9 | 16·67 |
| Income | ||
| ≤$US 25 000 | 12 | 22·22 |
| $US 25 000–50 000 | 4 | 7·41 |
| >$US 50 000 | 25 | 46·30 |
| Refuse/don’t know/missing | 13 | 24·07 |
| Education | ||
| ≤12 years | 6 | 11·11 |
| Some college/technical | 11 | 20·37 |
| ≥College graduate | 26 | 48·15 |
| Missing | 11 | 20·37 |
| Marital status | ||
| Single, divorced, widowed | 18 | 33·33 |
| Married/partner | 27 | 50·00 |
| Missing | 9 | 16·67 |
| Use of NSAID | ||
| Yes | 28 | 51·85 |
| No | 25 | 46·30 |
| Missing | 1 | 1·85 |
| Menopausal status† | ||
| Pre | 19 | 35·19 |
| Peri | 12 | 22·22 |
| Post | 23 | 42·59 |
| Pathology biopsy diagnosis | ||
| No cancer | 24 | 44·40 |
| Hyperplasia | 4 | 7·41 |
| DCIS or DCIS+ADH | 17 | 31·48 |
| Invasive cancer with DCIS or DCIS+ADH | 9 | 16·67 |
SFN ITC, sulforaphane isothiocyanates; NSAID, non-steroidal anti-inflammatory drugs; DCIS, ductal carcinoma in situ; ADH, atypical ductal hyperplasia.
*
Cruciferous vegetable intake includes sources from food lines, mixed dishes and condiments.
†
For the thirteen women who did not report their menopausal status, those aged <45 years were grouped into premenopausal status, those aged 45–55 years were grouped into perimenopausal status and those aged >55 years were grouped into postmenopausal status.
‡
Percentages may not add up to 100 due to rounding.