1. Abstract The article considers the variable process control scheme for two dependent process steps with incorrect adjustment. Incorrect adjustment of a process may result in shifts in process mean, ultimately affecting the quality of products. We construct variable sample size and variable sampling interval (VSSI) control charts to effectively monitor the quality variable produced by the fir...

OBJECTIVE To implement routine in-house monitoring of risk-adjusted 30-day mortality following paediatric cardiac surgery. DESIGN Collaborative monitoring software development and implementation in three specialist centres. PATIENTS AND METHODS Analyses incorporated 2 years of data routinely audited by the National Institute of Cardiac Outcomes Research (NICOR). Exclusion criteria were pati...

background: reference charts are widely used in healthcare as a screening tool. this study aimed to produce reference growth charts for school children from west malaysia in comparison with the united states centers for disease control and prevention (cdc) chart. methods: a total of 14,360 school children ranging from 7 to 17 years old from six states in west malaysia were collected. a two-stag...

CCC-r chart extended approach of CCC charts, is a technique applied when nonconforming items are rarely observed. However, it is usually assumed that the inspection process is perfect in the implementation control charts imperfect inspections may have a significant impact on the performance of the control chart and setting the control limits. This paper first investigates the ...

OBJECTIVE To identify socioeconomic, gynecological-obstetric and fetal factors associated with perinatal mortality. METHODS A matched case-control study was carried out. Cases were newborns (born live or dead) that were born and died between 28 weeks gestation and 7 days of life. Controls were live newborns between 28 weeks gestation and 7 days of life. A total of 99 cases and 197 controls we...

in many manufacturing processes, the quality of a product is characterized by a non-linear relationship between a dependent variable and one or more independent variables. using nonlinear regression for monitoring nonlinear profiles have been proposed in the literature of profile monitoring which is faced with two problems 1) the distribution of regression coefficients in small samples is unkno...

OBJECTIVES To demonstrate the benefit of defining operational management units in nursing homes and computing quality indicators on these units as well as on the whole facility. DESIGN Calculation of adjusted Resident Assessment Instrument - Minimum Data Set 2.0 (RAI-MDS 2.0) quality indicators for: PRU05 (prevalence of residents with a stage 2-4 pressure ulcer), PAI0X (prevalence of resident...