Table 1.
Participant Characteristics at Time of Enrollment in Clinical Trial of Cranberry Juice 2 Times/Day Versus Placebo.
| Characteristic | Cranberry (n = 155) | Placebo (n = 164) |
| Age, mean ±SD, years | 21.2 (3.4) | 21.2 (3.5) |
| No. previous UTI ever ±SD | 3.6 (4.0) | 3.8 (3.1) |
| No. UTI in past 12 months ±SD | 1.31(2.17) | 1.27 (1.48) |
| Frequency vaginal intercourse in previous 4 weeks, mean ±SD | 9.9 (7.2) | 10.2 (7.0) |
| No, of sex partners past 4 weeks, mean ±SD | 1.10 (.30) | 1.07 (.28) |
| Birth control method, n (%)* | ||
| None | 12 (8.0) | 15 (9.7) |
| Diaphragm | 1 (.7) | 2 (1.3) |
| Condoms with spermicide | 50 (33.8) | 44 (28.6) |
| Condoms without spermicide | 53 (35.8) | 61 (39.6) |
| Spermicide | 4 (2.7) | 2 (1.3) |
| Oral contraceptives | 112 (75.2) | 118 (75.2) |
| Completed college, n (%) | 38 (24.7) | 38 (23.4) |
| Married or living as married, n (%) | 11 (7.2) | 14 (8.6) |
| Race/ethnicity,* n (%) | ||
| Hispanic or Latino | 9 (5.9) | 10 (6.2) |
| White | 108 (72.5) | 126(81.3) |
| Black | 9 (6.0) | 13 (8.4) |
| Asian | 35 (23.5) | 16 (10.3) |
NOTE. Otherwise healthy young women (319) with a culture-confirmed urinary tract infection 2005–2007.
*Groups not mutually exclusive