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. Author manuscript; available in PMC: 2014 Jun 2.
Published in final edited form as: N Engl J Med. 2013 Nov 14;369(20):1883–1891. doi: 10.1056/NEJMoa1302186

Figure 2. Correlation between Counts of Colony-Forming Units (CFUs) in Catheter Urine Cultures and in Midstream Urine Cultures.

Figure 2

Shown are plots indicating the correlation between bacterial counts in cultures of urine collected by means of a urethral catheter and those in cultures of voided midstream urine in women with symptoms of acute uncomplicated cystitis. Spearman’s correlation coefficients, which are shown in the upper left corners of the panels, are based on all observations. The left-hand column of plots (Panels A, C, and E) show gram-negative organisms, and the right-hand column (Panels B, D, and F) show gram-positive organisms.