Table 4.
Prevalence of Oxalobacter formigenes Among 240 Control Subjects According to Mutually Exclusive Categories of Antibiotic Use
| |
O. formigenes |
|
|
|
|---|---|---|---|---|
| Antibiotic use | Positive No. (%) | Negative No. (%) | Crude OR | MVOR (95% CI) |
| Nonea | 36 (59) | 25 (41) | 1.0b | 1.0b |
| Sensitive+nonsensitive ≤5 year | 4 (15) | 23 (85) | 0.1 | 0.1 (0.03–0.3) |
| Median interval since last use (month) | 34 | 17 | ||
| Sensitive only ≤5 year | 15 (27) | 41 (73) | 0.3 | 0.2 (0.1–0.5) |
| Median interval since last use (month) | 19 | 15 | ||
| Nonsensitive only ≤5 year | 15 (48) | 16 (52) | 0.7 | 0.6 (0.2–1.5) |
| Median interval since last use (month) | 26 | 21 | ||
| Sensitive >5 year only | 16 (36) | 28 (64) | 0.5 | 0.3 (0.1–0.8) |
| Median interval since last use (month) | 123 | 155 | ||
| Sensitive >5 year + nonsensitive ≤5 year | 8 (38) | 13 (62) | 0.5 | 0.3 (0.1–1.0) |
| Median interval since last use (month) | 179 | 119 | ||
a
No use of sensitive antibiotics at any time, and no use of nonsensitive antibiotics in the previous 5 years.
b
Reference category.