Reliability of a computerized version of the Pediatric Canadian Triage and Acuity Scale

Validity of the Paediatric Canadian Triage Acuity Scale in a Tertiary Hospital: An Analysis of Severity Markers' Variability

With the increasing influx of patients and frequent overcrowding, the adoption of a valid triage system, capable of distinguishing patients who need urgent care, from those who can wait safely is paramount. Hence, the aim of this study is to evaluate the validity of the Paediatric Canadian Triage and Acuity Scale (PaedCTAS) in a Portuguese tertiary hospital. Furthermore, we aim to study the performance and appropriateness of the different surrogate severity markers to validate triage. This is a retrospective study considering all visits to the hospital's Paediatric Emergency Department (PED) between 2014 and 2019. This study considers cut-offs on all triage levels for dichotomization in order to calculate validity measures e.g. sensitivity, specificity and likelihood ratios, ROC curves; using hospital admission, admission to intensive care and the use of resources as outcomes/markers of severity. Over the study period there were 0.2% visits triaged as Level 1, 5.7% as Level 2, 39.4% as Level 3, 50.5% as Level 4, 4.2% as Level 5, from a total of 452,815 PED visits. The area under ROC curve was 0.96, 0.71, 0.76, 0.78, 0.59 for the surrogate markers: "Admitted to intensive care"; "Admitted to intermediate care"; "Admitted to hospital"; "Investigations performed in the PED" and "Uses PED resources", respectively. The association found between triage levels and the surrogate markers of severity suggests that the PedCTAS is highly valid. Different surrogate outcome markers convey different degrees of severity, hence different degrees of urgency. Therefore, the cut-offs to calculate validation measures and the thresholds of such measures should be chosen accordingly.

Decision-making for children requiring interhospital transport: assessment of a novel triage tool

OBJECTIVE

The use of specialist retrieval teams to transport critically ill children is associated with reduced risk-adjusted mortality and morbidity; however, there is a paucity of data to guide decision-making related to retrieval team activation. We aimed to assess the accuracy of a novel triage tool designed to identify critically ill children at the time of referral for interhospital transport.

DESIGN

Prospective observational study.

SETTING

Regional paediatric retrieval and transport services.

PATIENTS

Data were collected for 1815 children referred consecutively for interhospital transport from 87 hospitals in Queensland and northern New South Wales.

INTERVENTION

Implementation of the Queensland Paediatric Transport Triage Tool.

MAIN OUTCOME MEASURES

Accuracy was assessed by calculating the sensitivity, specificity and negative predictive value for predicting transport by a retrieval team, or admission to intensive care following transport.

RESULTS

A total of 574 (32%) children were transported with a retrieval team. Prediction of retrieval (95% CIs): sensitivity 96.9% (95% CI 95.1% to 98.1%), specificity 91.4% (95% CI 89.7% to 92.9%), negative predictive value 98.4% (95% CI 97.5% to 99.1%). There were 412 (23%) children admitted to intensive care following transport. Prediction of intensive care admission: sensitivity 96.8% (95% CI 94.7% to 98.3%), specificity 81.2% (95% CI 79.0% to 83.2%), negative predictive value 98.9% (95% CI 98.1% to 99.4%).

CONCLUSIONS

The triage tool predicted the need for retrieval or intensive care admission with high sensitivity and specificity. The high negative predictive value indicates that, in our setting, children categorised as acutely ill rather than critically ill are generally suitable for interhospital transport without a retrieval team.

Pediatric triage variations among nurses, pediatric and emergency residents using the Canadian triage and acuity scale

Background

Emergency care continues to be a challenge, since patients’ arrival is unscheduled and could occur at the same time which may fill the Emergency Department with non-urgent patients. Triaging is an integral part of every busy ED. The Canadian Triage and Acuity Scale (CTAS) is considered an accurate tool to be used outside Canada. This study aims to identify the chosen triage level and compare the variation between registered nurses, pediatric and adult emergency residents by using CTAS cases.

Method

This study was conducted at King Abdulaziz Medical City,Saudi Arabia. A cross-sectional self-administered questionnaire was used, and which contains 15 case scenarios with different triage levels. All cases were adopted from a Canadian triage course after receiving permission. Each case provides the patient’s symptoms, clinical signs and mode of arrival to the ED. The participants were instructed to assign a triage level using the following scale. A non-random sampling technique was used for this study. The rates of agreement between residents were calculated using kappa statistics (weighted-kappa) (95%CI).

Result

A total of 151 participants completed the study questionnaire which include 15 case scenarios. 73 were nurses and 78 were residents. The results showed 51.3, 56.6, and 59.9% mis-triaged the cases among the nurses, emergency residents, and pediatric residents respectively. Triage scores were compared using the Kruskal Wallis test and were statistically significant with a p value of 0.006. The mean ranks for nurses, emergency residents and pediatric residents were 86.41, 73.6 and 59.96, respectively. The Kruskal Wallis Post-Hoc test was performed to see which groups were statistically significant, and it was found that there was a significant difference between nurses and pediatrics residents (P value = 0.005). Moreover, there were no significant differences found between nurses and ER residents (P value> 0.05).

Conclusion

The triaging system was found to be a very important tool to prioritize patients based on their complaints. The results showed that nurses had the greatest experience in implementing patients on the right triage level. On the other hand, ER and pediatric residents need to develop more knowledge about CTAS and become exposed more to the triaging system during their training.

The "two-step four-level+ " pediatric triage method in a medical center in Southern China

PURPOSE

Because the quality of medical resources is extremely uneven across China, it is nearly impossible to implement a unified emergency triage program. The aim of the study is to examine triage using the "two-step four-level⁺ " triage model in a hospital in Southern China, with an emphasis on hand, foot, and mouth disease.

DESIGN AND METHODS

This was a retrospective study of all patients seen in the pediatric emergency room (ER) between January 1, 2012 and December 31, 2018, at the Guangzhou Women and Children's Medical Center. The "two-step and four-level⁺ " was manually implemented in 2012, and an electronic triage system was developed and applied since 2015. Emergency quality control indicators were analyzed.

RESULTS

There were 645,473 patients triaged at the pediatric ER between January 1, 2015 and December 31, 2018. After the first step, 17,444 patients were classified as unstable, including 6546 (1.01%) Level I patients, 10,898 (1.69%) Level II patients, 210,368 (32.5%) Level III patients, and 417,661 (64.8%) Level IV patients. After triage implementation, the stay time of the patient in the pediatric ER decreased each year (all p < .05) and shortened to 20.3 ± 2.2 h in 2018. Compared with 2012-2014, the mortality of 2015-2018 decreased by 21.1%, the rate of unexpected resuscitation was 0%, and the complaints of overcrowding decreased (all p < .05).

PRACTICE IMPLICATIONS

This "two-step four-level⁺ " triage method can improve the medical care quality of pediatric ER in China.

Are Pediatric Triage Systems Reliable in the Emergency Department?

Background

Few studies have focused on the agreement level of pediatric triage scales (PTSs). The aim of this meta-analytic review was to examine the level of inter-rater reliability of PTSs.

Methods

Detailed searches of a number of electronic databases were performed up to 1 March 2019. Studies that reported sample sizes, reliability coefficients, and a comprehensive description of the assessment of the inter-rater reliability of PTSs were included. The articles were selected according to the COnsensus-based Standards for the selection of health status Measurement INstruments (COSMIN) taxonomy. Two reviewers were involved in the study selection, quality assessment, and data extraction and performed the review process. The effect size was estimated by z-transformation of reliability coefficients. Data were pooled with random-effects models, and a metaregression analysis was performed based on the method of moments estimator.

Results

Thirteen studies were included. The pooled coefficient for the level of agreement was 0.727 (confidence interval (CI) 95%: 0.650–0.790). The level of agreement on PTSs was substantial, with a value of 0.25 (95% CI: 0.202–0.297) for the Australasian Triage Scale (ATS), 0.571 (95% CI: 0.372–0.720) for the Canadian Triage and Acuity Scale (CTAS), 0.810 (95% CI: 0.711–0.877) for the Emergency Severity Index (ESI), and 0.755 (95% CI: 0.522–0.883) for the Manchester Triage System (MTS).

Conclusions

Overall, the reliability of pediatric triage systems was substantial, and this level of agreement should be considered acceptable for triage in the pediatric emergency department. Further studies on the level of agreement of pediatric triage systems are needed.

Factors Associated with Triage Modifications Using Vital Signs in Pediatric Triage: a Nationwide Cross-Sectional Study in Korea

BACKGROUND

Previous studies on inter-rater reliability of pediatric triage systems have compared triage levels classified by two or more triage providers using the same information about individual patients. This overlooks the fact that the evaluator can decide whether or not to use the information provided. The authors therefore aimed to analyze the differences in the use of vital signs for triage modification in pediatric triage.

METHODS

This was an observational cross-sectional study of national registry data collected in real time from all emergency medical services beyond the local emergency medical centers (EMCs) throughout Korea. Data from patients under the age of 15 who visited EMC nationwide from January 2016 to December 2016 were analyzed. Depending on whether triage modifications were made using respiratory rate or heart rate beyond the normal range by age during the pediatric triage process, they were divided into down-triage and non-down-triage groups. The proportions in the down-triage group were analyzed according to the triage provider's profession, mental status, arrival mode, presence of trauma, and the EMC class.

RESULTS

During the study period, 1,385,579 patients' data were analyzed. Of these, 981,281 patients were eligible for triage modification. The differences in down-triage proportions according to the profession of the triage provider (resident, 50.5%; paramedics, 47.7%; specialist, 44.9%; nurses, 44.2%) was statistically significant (P < 0.001). The triage provider's professional down-triage proportion according to the medical condition of the patients showed statistically significant differences except for the unresponsive mental state (P = 0.502) and the case of air transport (P = 0.468).

CONCLUSION

Down-triage proportion due to abnormal heart rates and respiratory rates was significantly different according to the triage provider's condition. The existing concept of inter-rater reliability of the pediatric triage system needs to be reconsidered.

Electronic and manual registration of Manchester System: reliability, accuracy, and time evaluation

OBJECTIVE

to evaluate the degree of reliability, accuracy and timing to perform the Manchester Triage System in electronic and manual records.

METHOD

exploratory-descriptive research. Case series corresponded to a total of 20 validated simulated clinical cases applied to a sample of 10 nurses. For data collection each participant received 4 clinical cases in 2 different phases of the study, using manual and electronic registration. The variables related to the triage were: incomplete data filling, discriminator, flowchart, priority level, vital signs and triage timing.

RESULTS

moderate reliability for choosing flowcharts and substantial reliability for determining discriminators in both records; substantial and moderate, for priority, respectively, in manual and electronic registration. For vital signs, it was weak in manual recording and substantial in electronic. Accuracy showed a statistically significant difference related to vital signs. The average timing on triage was shorter with the use of electronic registration.

CONCLUSION

the use of electronic registration has advantages regarding reliability, accuracy and timing to perform the triage, pointing to the importance of adopting technologies in the management and care work process in health services.

Reliability of triage systems for paediatric emergency care: a systematic review

OBJECTIVE

To present a systematic review on the reliability of triage systems for paediatric emergency care.

METHODS

A search of MEDLINE, Cochrane Library, Latin American and Caribbean Health Sciences Literature, Scientific Electronic Library Online, Nursing Database Index and Spanish Health Sciences Bibliographic Index for articles in English, French, Portuguese or Spanish was conducted to identify reliability studies of five-level triage systems for patients aged 0-18 years published up to April 2018. Two reviewers performed study selection, data extraction and quality assessment as recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement.

RESULTS

Twenty studies on nine triage systems were selected: the National Triage System (n=1); the Australasian Triage Scale (n=3); the paediatric Canadian Triage and Acuity Scale (PedCTAS) (n=5); the Manchester Triage System (MTS) (n=1); the Emergency Severity Index (ESI) (n=5); an adaptation of the South African Triage Scale for the Princess Marina Hospital in Botswana (n=1); the Soterion Rapid Triage System (n=1); the Rapid Emergency Triage and Treatment System-paediatric version (n=2); the Paediatric Risk Classification Protocol (n=1). Ten studies were performed with actual patients, while the others used hypothetical scenarios. The studies were rated low (n=14) or moderate (n=6) quality. Kappa was the most used statistic, although many studies did not specify the weighting. PedCTAS, MTS and ESI V.4 exhibited substantial to almost perfect agreement in moderate quality studies.

CONCLUSIONS

There is some evidence on the reliability of the PedCTAS, MTS and ESI V.4, but most studies are limited to the countries where they were developed. Efforts are needed to improve the quality of the studies, and cross-cultural adaptation of those tools is recommended in countries with different professional qualification and sociocultural contexts.

Remote Presence Robotic Technology Reduces Need for Pediatric Interfacility Transportation from an Isolated Northern Community

BACKGROUND

Providing acutely ill children in isolated communities access to specialized care is challenging. This study aimed to evaluate remote presence robotic technology (RPRT) for enhancing pediatric remote assessments, expediting initiation of treatment, refining triaging, and reducing the need for transport.

METHODS

We conducted a pilot prospective observational study at a primary/urgent care clinic in an isolated northern community. Participants (n = 38) were acutely ill children <17 years presenting to the clinic, whom local healthcare professionals had considered for interfacility transportation (IFT). Participants were assessed and managed by a tertiary center pediatric intensivist through a remote presence robot. The intensivist triaged participants to either remain at the clinic or be transported to regional/tertiary care. Controls from a pre-existing local transport database were matched using propensity scoring. The primary outcome was the number of IFTs among participants versus controls.

RESULTS

Fourteen of 38 (37%) participants required transport, whereas all controls were transported (p < 0.0001). Six of 14 (43%) transported participants were triaged to a nearby regional hospital, while no controls were regionalized (p = 0.0001). All participants who remained at the clinic stayed <24 h, and were matched to controls who stayed 4.9 days in tertiary care (p < 0.001). There was no statistically significant difference in hospital length of stay between transported participants and controls (6.0 vs. 5.7 days).

CONCLUSIONS

RPRT reduced the need for specialized pediatric IFT, while enabling regionalization when appropriate. This study may have implications for the broader implementation of RPRT, while reducing costs to the healthcare system.

A Semantic-Based Model for Triage Patients in Emergency Departments

Triage is a process performed in an emergency department that aims to sort patients according to their need for care. When performed speedily and correctly, this process can potentially increase the chances of survival for a patient with serious complications. This study aims to develop a computer model, called UbiTriagem, which supports the process of triage using the concepts of web semantics and ubiquitous computing focused on healthcare. For evaluating the proposal, we performed an analysis of scenario-driven triage based on previously determined ratings. In addition, we conducted a usability evaluation in emergency department with the developed prototype with two user groups: nurses and patients. The main scientific contribution is the automatic triage assessment based on the gathering of patient data on mobile devices, performed automatically through the use of a reasoning technique in an ontology. The results for all evaluations were very positive. The automatic triage assessment has been assertive in 93.3% of the cases and, after adjustments in the model, in 100% of the cases. Regarding user satisfaction, we obtained rates of 98.7% and 96% when considering perception of utility and ease of use, respectively.

The Reliability of the Canadian Triage and Acuity Scale: Meta-analysis

Background:

Although the Canadian Triage and Acuity Scale (CTAS) have been developed since two decades ago, the reliability of the CTAS has not been questioned comparing to moderating variable.

Aims:

The study was to provide a meta-analytic review of the reliability of the CTAS in order to reveal to what extent the CTAS is reliable.

Materials and Methods:

Electronic databases were searched to March 2014. Only studies were included that had reported samples size, reliability coefficients, adequate description of the CTAS reliability assessment. The guidelines for reporting reliability and agreement studies (GRRAS) were used. Two reviewers independently examined abstracts and extracted data. The effect size was obtained by the z-transformation of reliability coefficients. Data were pooled with random-effects models and meta-regression was done based on method of moments estimator.

Results:

Fourteen studies were included. Pooled coefficient for the CTAS was substantial 0.672 (CI 95%: 0.599-0.735). Mistriage is less than 50%. Agreement upon the adult version, among nurse-physician and near countries is higher than pediatrics version, other raters and farther countries, respectively.

Conclusion:

The CTAS showed acceptable level of overall reliability in the emergency department but need more development to reach almost perfect agreement.

Best practices for improving flow and care of pediatric patients in the emergency department

This report provides a summary of best practices for improving flow, reducing waiting times, and improving the quality of care of pediatric patients in the emergency department.

Effectiveness of a five-level Paediatric Triage System: an analysis of resource utilisation in the emergency department in Taiwan

Objectives

To examine the effectiveness of a five-level Paediatric Triage and Acuity System (Ped-TTAS) by comparing the reliability of patient prioritisation and resource utilisation with the four-level Paediatric Taiwan Triage System (Ped-TTS) among non-trauma paediatric patients in the emergency department (ED).

Methods

The study design used was a retrospective longitudinal analysis based on medical chart review and a computer database. Except for a shorter list of complaints and some abnormal vital sign criteria modifications, the structure and triage process for applying Ped-TTAS was similar to that of the Paediatric Canadian Emergency Triage and Acuity Scale. Non-trauma paediatric patients presenting to the ED were triaged by well-trained triage nurses using the four-level Ped-TTS in 2008 and five-level Ped-TTAS in 2010. Hospitalisation rates and medical resource utilisation were analysed by acuity levels between the contrasting study groups.

Results

There was a significant difference in patient prioritisation between the four-level Ped-TTS and five-level Ped-TTAS. Improved differentiation was observed with the five-level Ped-TTAS in predicting hospitalisation rates and medical costs.

Conclusions

The five-level Ped-TTAS is better able to discriminate paediatric patients by triage acuity in the ED and is also more precise in predicting resource utilisation. The introduction of a more accurate acuity and triage system for use in paediatric emergency care should provide greater patient safety and more timely utilisation of appropriate ED resources.

Modern triage in the emergency department

BACKGROUND

Because the volume of patient admissions to an emergency department (ED) cannot be precisely planned, the available resources may become overwhelmed at times ("crowding"), with resulting risks for patient safety. The aim of this study is to identify modern triage instruments and assess their validity and reliability.

METHODS

Review of selected literature retrieved by a search on the terms "emergency department" and "triage."

RESULTS

Emergency departments around the world use different triage systems to assess the severity of incoming patients' conditions and assign treatment priorities. Our study identified four such instruments: the Australasian Triage Scale (ATS), the Canadian Triage and Acuity Scale (CTAS), the Manchester Triage System (MTS), and the Emergency Severity Index (ESI). Triage instruments with 5 levels are superior to those with 3 levels in both validity and reliability (p<0.01). Good to very good reliability has been shown for the best-studied instruments, CTAS and ESI (κ-statistics: 0.7 to 0.95), while ATS and MTS have been found to be only moderately reliable (κ-statistics: 0.3 to 0.6). MTS and ESI are both available in German; of these two, only the ESI has been validated in German-speaking countries.

CONCLUSION

Five-level triage systems are valid and reliable methods for assessment of the severity of incoming patients' conditions by nursing staff in the emergency department. They should be used in German emergency departments to assign treatment priorities in a structured and dependable fashion.

An observational study of patients triaged in category 5 of the Emergency Severity Index

OBJECTIVE

Patients triaged in category 5 of the Emergency Severity Index (ESI) do not need any resources before discharge from the emergency department (ED). We studied the characteristics of these patients and focused on those who were admitted or sent to the outpatient department after their ED visit.

METHODS

A retrospective observational study was conducted on 117 740 patient presentations. Patients were included in the study when they were triaged with the ESI and presented to one of the two EDs under study between 1 September 2004 and 1 June 2006.

RESULTS

Overall, 22.2% of the patients were triaged in ESI 5. Patients aged less than 40 years, women, and self-referred patients were most likely triaged in ESI 5, as well as patients presenting with complaints such as 'checkup appointments at the ED' and 'complaints of the skin'. Patients triaged in ESI 5 who were admitted or sent to the outpatient department were most likely elderly (aged above 65 years) and referred patients. They were also more likely to present with complaints such as 'postoperative complications, wound care problems, and plaster problems' and 'complaints of the genitourinary system'.

CONCLUSION

Although younger patients and women were more likely triaged in ESI 5, patients within this category who were admitted or sent to the outpatient department were more likely elderly and referred patients. Being admitted or sent to the outpatient department and triaged in ESI 5 indicates undertriage. Revision of the system is required to properly account for these patient groups.

External validation of the clinical dehydration scale for children with acute gastroenteritis

OBJECTIVES

The objective was to validate the clinical dehydration scale (CDS) for children with gastroenteritis in a different pediatric emergency department (ED) from where it was initially derived and validated.

METHODS

A prospective cohort study was performed in a tertiary care pediatric ED over a 1-year period. A sample of triage nurses were trained in applying the CDS. The CDS consists of four clinical characteristics (general appearance, eyes, mucous membranes, and tears), each of which are scored 0, 1, or 2 for a total score of 0 to 8, with 0 representing no dehydration; 1 to 4, some dehydration; and 5 to 8, moderate/severe dehydration. Children 1 month to 5 years of age with vomiting and/or diarrhea who had the CDS documented at triage and a final diagnosis of gastroenteritis, gastritis, or enteritis were enrolled. Exclusion criteria included a chronic disease, treatment with intravenous (IV) rehydration within the previous 24 hours, visit to the ED for the same illness in the 7 days prior to arrival, and diarrhea of more than 10 days' duration. The primary outcome was the length of stay (LOS) in the ED from the time of seeing a physician to discharge, analyzed with a Kruskal-Wallis test.

RESULTS

From April 2008 to March 2009, 150 patients with a mean (+/-SD) age of 22 (+/-14) months (range = 4 months to 4 years) were enrolled. Fifty-six patients had no dehydration, 74 had some dehydration, and 20 had moderate/severe dehydration. The median LOS in the ED after being seen by a physician was significantly longer as children appeared more dehydrated according to the CDS: 54 minutes (interquartile range [IQR] = 26-175 minutes), 128 minutes (IQR = 25-334 minutes), and 425 minutes (IQR = 218-673 minutes) for the no, some, and moderate/severe dehydration groups, respectively (p < 0.001).

CONCLUSIONS

The CDS has been further validated in children with gastroenteritis in a different pediatric center than the original one where it was developed. It is a good predictor of LOS in the ED after being seen by a physician.

Reliability and validity of triage systems in paediatric emergency care

BACKGROUND

Triage in paediatric emergency care is an important tool to prioritize seriously ill children. Triage can also be used to identify patients who do not need urgent care and who can safely wait. The aim of this review was to provide an overview of the literature on reliability and validity of current triage systems in paediatric emergency care

METHODS

We performed a search in Pubmed and Cochrane on studies on reliability and validity of triage systems in children

RESULTS

The Manchester Triage System (MTS), the Emergency Severity Index (ESI), the Paediatric Canadian Triage and Acuity Score (paedCTAS) and the Australasian Triage Scale (ATS) are common used triage systems and contain specific parts for children. The reliability of the MTS is good and reliability of the ESI is moderate to good. Reliability of the paedCTAS is moderate and is poor to moderate for the ATS.The internal validity is moderate for the MTS and confirmed for the CTAS, but not studied for the most recent version of the ESI, which contains specific fever criteria for children.

CONCLUSION

The MTS and paedCTAS both seem valid to triage children in paediatric emergency care. Reliability of the MTS is good, moderate to good for the ESI and moderate for the paedCTAS. More studies are necessary to evaluate if one triage system is superior over other systems when applied in emergency care.

Interrater agreement between nurses for the Pediatric Canadian Triage and Acuity Scale in a tertiary care center

OBJECTIVES

The objective was to measure the interrater agreement between nurses assigning triage levels to children visiting a pediatric emergency departments (EDs) assisted by a computerized version of the Pediatric Canadian Triage and Acuity Scale (PedCTAS).

METHODS

This was a prospective cohort study evaluating children triaged from Level 2 (emergent) to Level 5 (nonurgent). A convenience sample of patients triaged during 38 shifts from April to September 2007 in a tertiary care pediatric ED was evaluated. All patients were initially triaged by regular triage nurses using a computerized version of the PedCTAS. Research nurses performed a second evaluation blinded to the first evaluation using the same triage tool. These research nurses were regular ED nurses performing extra hours for research purposes exclusively. The primary outcome measure was the interrater agreement between the two nurses as measured by the linear weighted kappa score. Secondary outcomes included the proportion of patient for which nurses did not apply the triage level suggested by Staturg (override) and agreement for these overrides.

RESULTS

A total of 499 patients were recruited. The overall interrater agreement was moderate (linear weighted kappa score of 0.55 [95% confidence interval {CI} = 0.48 to 0.61] and quadratic weighted kappa score of 0.61 [95% CI = 0.42 to 0.80]). There was a discrepancy of more than one level in only 10 patients (2% of the study population). Overrides occurred in 23.2 and 21.8% for regular and research triage nurses, respectively. These overrides were equally distributed between increase and decrease in triage level.

CONCLUSIONS

Nurses using Staturg, which is a computerized version of the PedCTAS, demonstrated moderate interrater agreement for assignment of triage level to children presenting to a pediatric ED.

Manchester triage system in paediatric emergency care: prospective observational study

OBJECTIVE

To validate use of the Manchester triage system in paediatric emergency care.

DESIGN

Prospective observational study.

SETTING

Emergency departments of a university hospital and a teaching hospital in the Netherlands, 2006-7.

PARTICIPANTS

17,600 children (aged <16) visiting an emergency department over 13 months (university hospital) and seven months (teaching hospital).

INTERVENTION

Nurses triaged 16,735/17,600 patients (95%) using a computerised Manchester triage system, which calculated urgency levels from the selection of discriminators embedded in flowcharts for presenting problems. Nurses over-ruled the urgency level in 1714 (10%) children, who were excluded from analysis. Complete data for the reference standard were unavailable in 1467 (9%) children leaving 13,554 patients for analysis.

MAIN OUTCOME MEASURES

Urgency according to the Manchester triage system compared with a predefined and independently assessed reference standard for five urgency levels. This reference standard was based on a combination of vital signs at presentation, potentially life threatening conditions, diagnostic resources, therapeutic interventions, and follow-up. Sensitivity, specificity, and likelihood ratios for high urgency (immediate and very urgent) and 95% confidence intervals for subgroups based on age, use of flowcharts, and discriminators.

RESULTS

The Manchester urgency level agreed with the reference standard in 4582 of 13,554 (34%) children; 7311 (54%) were over-triaged and 1661 (12%) under-triaged. The likelihood ratio was 3.0 (95% confidence interval 2.8 to 3.2) for high urgency and 0.5 (0.4 to 0.5) for low urgency; though the likelihood ratios were lower for those presenting with a medical problem (2.3 (2.2 to 2.5) v 12.0 (7.8 to 18.0) for trauma) and in younger children (2.4 (1.9 to 2.9) at 0-2 months [corrected] v 5.4 (4.5 to 6.5) at 8-16 years).

CONCLUSIONS

The Manchester triage system has moderate validity in paediatric emergency care. It errs on the safe side, with much more over-triage than under-triage compared with an independent reference standard for urgency. Triage of patients with a medical problem or in younger children is particularly difficult.