Summary of the microbial and chemical results. 96 species were isolated from 85 patients of which 83 samples were analysed by LC-MS/MS.

For patients with isolated CoNS, antibiotics were detected in 55 out of 83 samples. For patients with no CoNS isolates, 22 out of 38 urine samples contained antibiotics. The distribution of staphylococcal species, number of staphylococcal isolates and their antibiotic-resistance (R) and antibiotic-susceptibility (I+S), are shown in relation to the samples where antibiotics were detected and samples where no antibiotics were detected. *: Significant differences in resistance between S. haemolyticus and non-S. haemolyticus (p = 0.0063).Summary of the microbial and chemical results. 96 species were isolated from 85 patients of which 83 samples were analysed by LC-MS/MS.