Table 1.
Distribution of characteristics among participants by case control status
| Variable | Controls, n (%) | Cases, n (%) | P value |
|---|---|---|---|
| Overall | 100 (100) | 10 (100) | |
| Age at enrollment, years | |||
| <51 years | 50 (50.00) | 46 (46.00) | |
| ≥51 years | 50 (50.00) | 54 (54.00) | 0.730 |
| Parity | |||
| Nulliparous | 9 (9.00) | 8 (8.00) | |
| 1 or 2 children | 43 (43.00) | 42 (42.00) | |
| >2 children | 48 (48.00) | 50 (50.00) | 0.964 |
| Education level | |||
| <High school | 68 (68.00) | 70 (70.00) | |
| High school | 21 (21.00) | 20 (20.00) | |
| >High school | 11 (11.00) | 10 (10.00) | 0.967 |
| Place of birth | |||
| Mexico | 70 (70.00) | 70 (70.00) | |
| United States | 30 (30.00) | 30 (30.00) | 1.000 |
| Language acculturation | |||
| Low | 69 (69.00) | 60 (60.00) | |
| High | 31 (31.00) | 40 (40.00) | 0.279 |
| BMI category | |||
| Underweight/normal weight | 15 (15.00) | 12 (12.00) | |
| Overweight | 36 (36.00) | 38 (38.00) | |
| Obese | 49 (49.00) | 50 (50.00) | 0.879 |
| Smoking status | |||
| Never | 73 (73.00) | 64 (64.00) | |
| Former | 19 (19.00) | 28 (28.00) | |
| Current | 8 (8.00) | 8 (8.00) | 0.446 |
| Alcohol drinking | |||
| Never | 67 (67.00) | 66 (66.00) | |
| Former | 21 (21.00) | 26 (26.00) | |
| Current | 12 (12.00) | 8 (8.00) | 0.646 |
| Physical activity | |||
| Low | 72 (72.00) | 80 (80.00) | |
| Medium or high | 28 (28.00) | 20 (20.00) | 0.325 |
| Sitting hours per day | |||
| <2 | 27 (27.00) | 24 (24.00) | |
| 2–4 | 28 (28.00) | 36 (36.00) | |
| 4–6 | 23 (23.00) | 24 (24.00) | |
| >6 | 22 (22.00) | 16 (16.00) | 0.700 |
| Time between blood collection and cancer diagnosis | |||
| ≤5 years | 42 (42.00) | ||
| >5 years | 48 (48.00) | ||