Table 1.
Characteristics of the study cohorts
| Breast cancer screening cohort* | Prostate cancer screening cohort† | Colorectal cancer screening cohort‡ | |
|---|---|---|---|
| Mean (SD) age | 57.2 (7.3) | 59.8 (5.5) | 62.3 (7.6) |
| Mean (SD) number of years of education | 13.9 (2.2) | 14.6 (2.8) | 14.0 (2.5) |
| Married (%) | 72.1 | 85.1 | 75.9 |
| Spouses screened among married (%) | |||
| Unmarried | - | - | 24.3 |
| Married, spouses screened | - | - | 24.1 |
| Married, spouses not screened | - | - | 27.5 |
| Married, unknown if spouses screened | - | - | 24.1 |
| Sex | |||
| Female | - | - | 54.0 |
| Male | - | - | 46.0 |
| Mean (SD) number of children | 2.6 (1.6) | 2.8 (1.6) | 2.9 (1.6) |
| Mean (SD) number of times per week intense physical activity | 2.2 (2.1) | 2.8 (2.7) | 2.4 (2.4) |
| Currently working (%) | 61.7 | 64.7 | 51.8 |
| Mean (SD) number of drinks per week | 3.6 (5.4) | 7.6 (10.0) | 5.2 (7.9) |
| Current smoker (%) | 16.5 | 18.3 | 15.4 |
| Self reported health (%) | |||
| Excellent/very good | 43.4 | 43.9 | 39.9 |
| Good | 49.9 | 47.9 | 51.2 |
| Fair/poor | 6.0 | 7.3 | 7.7 |
| Unknown | 0.7 | 0.9 | 1.1 |
| Number of comorbidities (%)¶ | |||
| 0 | 83.9 | 76.6 | 78.1 |
| 1 | 15.1 | 20.2 | 19.3 |
| 2 or 3 | 1.0 | 3.2 | 2.6 |
| Survey wave (%) | |||
| Wave 6 | 51.2 | 50.1 | 47.7 |
| Wave 7 | 48.8 | 49.9 | 52.3 |
| Mean (SD) number of eligible siblings in cohort Ω | 0.4 (.7) (range 0–4) | 0.3 (0.6) (range 0–3) | 0.7 (1.0) (range 0–5) |
| Mean (SD) number of friends in cohort | 0.1 (0.3) (range 0–2) | 0.1 (0.3) (range 0–1) | 0.1 (0.3) (range 0–2) |
| Mean (SD) number of coworkers in cohort | 0.2 (0.9) (range 0–10) | 0.1 (0.5) (range 0–7) | 0.2 (0.9) (range 0–10) |
| % reporting screening in past year | 71.7 | 43.3 | 46.9 |
*
Based on 2929 observations for 1660 women.
†
Based on 2021 observations for 1217 men.
‡
Based on 5305 observations for 3045 men and women.
¶
Considering heart disease, diabetes, and chronic obstructive pulmonary disease
Ω
Siblings included sisters for breast cancer screening cohort, brothers for prostate cancer screening cohort, and sisters and brothers for colorectal cancer screening cohort who met screening criteria.