Table 2.
Characteristics of participants at enrollmena
| Men | Women | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| All men | Stratum | All women | Stratum | ||||||||
| Age-only | Family Hx |
Personal Hx |
Family/Personal Hx |
Age-only | Family Hx |
Personal Hx |
Family/Personal Hx |
||||
| n = 3641 | n = 2857 | n = 394 | n = 316 | n = 74 | n = 6000 | n = 4579 | n = 810 | n = 471 | n = 140 | ||
| (37.8%) | 78.5% | 10.8% | 8.7% | 2.0% | (62.2%) | 76.3% | 13.5% | 7.9% | 2.3% | ||
| Age (years; mean ± SD) | 56.9 ± 6.1 | 57.4 ± 5.3 | 53.8 ± 7.9 | 55.5 ± 7.5 | 58.2 ± 7.6 | 57.0 ± 6.2 | 57.6 ± 5.4 | 53.9 ± 8.0 | 55.7 ± 7.9 | 58.0 ± 7.0 | |
| Residential area | Urban | 76.6 | 76.3 | 75.1 | 81.0 | 78.4 | 72.8 | 72.3 | 74.7 | 72.8 | 77.9 |
| Rural | 23.4 | 23.7 | 24.9 | 19.0 | 21.6 | 27.2 | 27.7 | 25.3 | 27.2 | 22.1 | |
| Marital status | Married/live with partner | 84.5 | 84.5 | 84.8 | 83.2 | 87.8 | 74.8 | 73.9 | 77.9 | 76.9 | 78.6 |
| Single | 5.0 | 4.5 | 6.1 | 7.3 | 4.1 | 3.5 | 3.3 | 4.7 | 3.6 | 3.6 | |
| Divorced/separated/widowed | 10.5 | 11.0 | 9.1 | 9.5 | 8.1 | 21.7 | 22.7 | 17.4 | 19.5 | 17.8 | |
| Education level | Less than high school | 12.0 | 12.0 | 13.5 | 11.1 | 9.5 | 11.8 | 12.2 | 9.0 | 13.0 | 13.6 |
| High school | 13.7 | 13.8 | 12.9 | 15.5 | 8.1 | 21.4 | 20.9 | 24.2 | 21.4 | 19.3 | |
| College/university and higher | 74.2 | 74.1 | 73.6 | 73.4 | 82.4 | 66.7 | 66.8 | 66.8 | 65.6 | 67.1 | |
| Employment status | Not employed | 5.5 | 5.1 | 6.6 | 7.9 | 4.0 | 16.7 | 16.8 | 15.3 | 16.6 | 20.7 |
| Retired | 21.4 | 21.6 | 17.3 | 22.8 | 33.8 | 25.1 | 25.6 | 20.6 | 26.5 | 28.6 | |
| Employed part-time | 9.6 | 9.8 | 8.6 | 8.5 | 12.2 | 21.4 | 21.1 | 24.5 | 19.3 | 23.6 | |
| Employed full-time | 63.4 | 63.4 | 67.5 | 60.8 | 50.0 | 36.7 | 36.4 | 39.6 | 37.6 | 27.1 | |
| Annual household income ($) | < 50,000 | 27.3 | 27.1 | 27.0 | 29.7 | 29.7 | 40.7 | 41.5 | 36.1 | 40.5 | 41.4 |
| ≥50,000 and < 100,000 | 43.1 | 42.8 | 42.1 | 45.6 | 47.3 | 37.0 | 37.0 | 38.5 | 35.5 | 32.1 | |
| ≥100,000 | 27.9 | 28.5 | 28.4 | 23.4 | 21.6 | 18.8 | 17.7 | 23.1 | 20.4 | 22.2 | |
| BMI (kg/m2)b | < 18.5 | 0.1 | 0.1 | 0.5 | 0 | 0 | 0.6 | 0.6 | 0.7 | 0.2 | 0 |
| ≥18.5 and < 25 | 20.8 | 21.1 | 19.3 | 19.6 | 23.0 | 34.4 | 33.7 | 40.3 | 31.4 | 31.5 | |
| ≥25 and < 30 | 49.8 | 50.1 | 50.0 | 48.4 | 44.6 | 37.0 | 37.4 | 34.5 | 36.1 | 40.7 | |
| ≥30 | 29.0 | 28.4 | 29.9 | 31.7 | 32.4 | 27.8 | 28.1 | 23.8 | 32.3 | 27.1 | |
| Smoking status | Current smoker | 14.2 | 13.9 | 12.9 | 19.0 | 16.2 | 13.6 | 13.2 | 13.0 | 16.1 | 20.0 |
| Current non smoker | 85.7 | 86.0 | 87.1 | 81.0 | 83.8 | 86.3 | 86.7 | 86.9 | 83.7 | 80.0 | |
| Self-reported health status | Excellent/very good | 53.7 | 55.4 | 55.2 | 36.2 | 54.0 | 56.5 | 57.2 | 60.4 | 44.4 | 51.4 |
| Good | 38.6 | 37.4 | 36.6 | 51.9 | 39.2 | 37.1 | 36.9 | 34.6 | 43.1 | 40.7 | |
| Fair/poor | 7.7 | 7.2 | 8.2 | 11.9 | 6.8 | 6.4 | 5.9 | 5.0 | 12.5 | 7.9 | |
| PSA screening | Yesc | 53.2 | 53.7 | 47.2 | 50.9 | 74.3 | N/A | ||||
| Mammography screening | Yesc | N/A | 93.3 | 94.9 | 85.9 | 90.9 | 93.6 | ||||
| Family history of cancer | Yes | 60.2 | 54.4 | 100 | 53.8 | 100 | 64.0 | 57.2 | 100 | 57.3 | 100 |
| Family history of colorectal cancer | 1 FDRd diagnosed > 60 yr | 55.5 | n/a | 56.3 | n/a | 51.5 | 58.0 | n/a | 59.1 | n/a | 52.0 |
| 1 FDR diagnosed ≤60 yr., or ≥2 FDR | 44.5 | n/a | 43.7 | n/a | 48.5 | 42.0 | n/a | 40.9 | n/a | 48.0 | |
| Personal history of chronic diseasee | Yes | 59.2 | 59.4 | 53.8 | 63.6 | 59.5 | 53.6 | 54.7 | 45.2 | 55.0 | 61.6 |
aExcept for age (mean ± SD), values are presented as percentages
bCalculated from self-reported height and weight
cEver had a prostate-specific antigen (PSA) or mammography screening
dFDR = First-degree relative (mother, father, sister, brother)
ePersonal history of chronic disease – including angina, chronic bronchitis, cirrhosis of the liver, diabetes, emphysema, heart attack, hepatitis, high blood pressure, high cholesterol, and stroke; excluding bowel conditions (polyps, ulcerative colitis and Crohn’s disease)
Note: A total of 422 participants (132 men, 290 women) had missing data
Stratum Descriptions:
Age-only - participants who should commence screening due to age (50–74 years); considered average-risk
FamilyHx - participants with a first-degree relative diagnosed with CRC; considered moderate-risk
PersonalHx - participants with a personal history of a bowel condition or polyps; considered high-risk
Family/PersonalHx - participants with first-degree relative diagnosed with CRC and personal history of a bowel condition or polyps; considered highest-risk