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. 2021 May 6;8(1):42–50. doi: 10.36469/jheor.2021.22256

Figure 3. Tornado Diagram of One-way Sensitivity Analysis at 4 Years of PUL Versus WVTT.

Figure 3.

Abbreviations: ASC, ambulatory surgery center; ICER, incremental cost-effectiveness ratio; IPSS, international prostate symptom score; PUL, prostatic urethral lift; QALY, quality-adjusted life-year; WVTT, water vapor thermal therapy.

The base case analysis shows an ICER of -US$88 000/QALY at 4 years. The tornado diagram illustrates in which range the ICER varies if the value of the listed model parameter is changed by +10% (dark blue) and -10% (grey), respectively. None of the parameters reaches a positive value (X-axis), which means that under the described conditions, WVTT is always dominant over PUL.