Problem Note 62081: The kernel-smoothed hazard confidence limits in PROC LIFETEST are incorrect
If you request a kernel-smoothed hazard plot and confidence limits with the PLOTS=HAZARD(CL) option in the PROC LIFETEST statement, the displayed confidence interval is incorrect. Similarly, if you save the resulting hazard plot data using the statement ODS OUTPUT HazardPlot=data-set, the UPPER and LOWER variable values are incorrect. The problem occurs for the METHOD=BRESLOW, FH, or KM options in PROC LIFETEST. The problem also occurs for any hazard-option KERNEL=BIWEIGHT, EPANECHNIKOV, or UNIFORM.
By default, METHOD=KM or its alias, PL, and when you specify PLOTS=HAZARD the default KERNEL= is Epanechnikov.
There is no workaround for this problem.
Operating System and Release Information
| SAS System | SAS/STAT | z/OS | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows XP 64-bit Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft® Windows® for x64 | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| Microsoft Windows Server 2003 Datacenter Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows Server 2003 Enterprise Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows Server 2003 Standard Edition | 9.2 | | 9.2 TS1M0 | |
| Microsoft Windows XP Professional | 9.2 | | 9.2 TS1M0 | |
| Windows Vista | 9.2 | | 9.2 TS1M0 | |
| Windows Vista for x64 | 9.2 | | 9.2 TS1M0 | |
| 64-bit Enabled AIX | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| 64-bit Enabled HP-UX | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| 64-bit Enabled Solaris | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| HP-UX IPF | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| Linux | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| Linux for x64 | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| OpenVMS on HP Integrity | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
| Solaris for x64 | 9.2 | 15.1 | 9.2 TS1M0 | 9.4 TS1M6 |
*
For software releases that are not yet generally available, the Fixed
Release is the software release in which the problem is planned to be
fixed.
If you specify PLOTS=HAZARD (CL) and METHOD=BRESLOW, FH, or KM, PROC LIFETEST generates incorrect confidence limits for the kernel-smoothed estimated hazard function.
| Type: | Problem Note |
| Priority: | alert |
| Topic: | Analytics ==> Survival Analysis
|
| Date Modified: | 2022-07-05 11:07:15 |
| Date Created: | 2018-04-04 10:18:22 |
