Mortality control charts: Assessment of outcome is complex

Control charts for the standard mortality ratio.

Control of Control Charts

O, ye who believe! If ye will aid, (the cause of) God, He will aid you, and plant your feet firmly. Verily, with every difficulty there is relief. Therefore, when thou art free (from thine immediate task), still labour hard. And to thy Lord turn (all) thy attention.

[Statistical process control charts in perinatal mortality surveillance].

OBJECTIVE Applying statistical process control (SPC) charts in perinatal mortality surveillance (as an epidemiological indicator). METHOD The control charts were prepared using 51,840 births; 286 cases were produced from these births. All information came from SUSALUD between January 2004 and December 2007. Two control charts are presented; the first one's central line was considered to be th...

Monitoring and Evaluation of Water Consumption in the Gohar-Zamin Iron Ore Complex (Sirjan) using Shewhart Control Charts

Background & objectives: One of the biggest concerns about the increasing development of the mining industries, especially in the dry and tropical regions, is their high water consumption and, consequently, the serious threat to the local water resources as well as the impacts of these industrieschr('39') pollution on the environment and other downstream water resources. Therefore, it is necess...

Mortality control charts for comparing performance of surgical units: validation study using hospital mortality data.

OBJECTIVE To design and validate a statistical method for evaluating the performance of surgical units that adjusts for case volume and case mix. DESIGN Validation study using routinely collected data on in-hospital mortality. DATA SOURCES Two UK databases, the ASCOT prospective database and the risk scoring collaborative (RISC) database, covering 1042 patients undergoing surgery in 29 hosp...