Figure 6. Tests Using Urethral Specimens in Men (Text Description)

Figure 6 is a bar chart with "specificity" as its vertical axis and "sensitivity" as its horizontal axis. The specificity scale ranges from 90 to 100. The sensitivity scale ranges from 50 to 100. Numbers/symbols on the chart represent the 7 tests, placed to indicate the following sensitivity and specificity:

1. SDA (Van der Pol, 2001): Asymptomatic—Sensitivity = 100%, Specificity = 99.5%
2. SDA (Van der Pol, 2001): Symptomatic—Sensitivity = 98.4%, Specificity = 94.8%
3. Culture (Crotchfelt, 1997): Sensitivity = 76.6, Specificity = 100%
4. PCR (Martin, 2000): Asymptomatic—Sensitivity = 73.1%, Specificity = 99.0%
5. PCR (Martin, 2000): Symptomatic—Sensitivity = 98.1%, Specificity = 98.8%
6. PCR (Van Doornum, 2001): Sensitivity = 100%, Specificity = 99.2%
7. PCR (Crotchfelt, 1997): Sensitivity = 97.3%, Specificity = 97.0%

Notes: PCR, polymerase chain reaction; SDA, strand displacement amplification.

Proceed to Figure 7
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