Research Article
Microbial Biofilms and Breast Tissue Expanders
Table 2
Demographics of the subjects with no evidence of infection.
| | Characteristic | Sonicate fluid culture | value | Positive (≥20 cfu/10 mL)
| Negative (<20 cfu/10 mL) |
| | Number of breast tissue expanders (number of subjects) | 52 (39) | 269 (166) | | | Subject age (years) (median [range]) | 45 (23–77) | 52 (18–77) | <0.0001 | | Breast tissue expander age (months) (median [range]) | 10 (1–29) | 11 (2–218) | 0.5221 | | Breast tissue expander surface | | | 1.00 | | Smooth | 1 | 10 | | | Textured | 47 | 257 | | | Saline expansions at Mayo Clinic Rochester () | 33 | 176 | | | Total number of expansions (median [range]) | 7 (1–15) | 8 (0–20) | 0.0175 | | Time since first expansion (days) (median [range]) | 298 (37–1127) | 320 (43–2684) | 0.2865 | | Time since last expansion (days) (median [range]) | 175 (29–1222) | 172 (1–2588) | 0.364 | | Number of breasts with radiotherapy treatment | 2 | 54 | 0.0026 | | Underlying condition (%) | | | 0.1742 | | Breast cancer | 25 (48.1) | 151 (56.1) | | | Prophylaxis | 23 (44.2) | 114 (42.4) | | | Other | 4 (7.7) | 4 (1.5) | |
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