Incident-level risk factors for firefighter injuries at structural fires

Firefighting is a demanding occupation, laden with hazardous exposures which result in traumatic injuries. Little epidemiologic evidence exists quantifying these factors, however. We conducted an incident-level case-control study of National Fire Incident Reporting System data of the association between firefighter injury and incident characteristics. Risk factors included 5 or more alarms (OR = 3.85; 95% CI, 3.32-4.48), number of stories (> 3 vs. ground level OR = 2.49; 95% CI, 1.43 to 1.55), and at least one civilian injury (OR = 3.69; 95% CI, 3.55-3.84). Risk of injury was reduced for fires originating 49 feet and higher (OR = 0.57; 95% CI, 0.49-0.66). This analysis suggests that fireground-specific situations such as the number of stories or a civilian injury increase the risk of injury. Given the danger of firefighting, the identification of risk factors through epidemiologic methods is vital to developing safety measures.     

Nonfatal residential fire-related injuries treated in emergency departments--United States, 2001

During 2000, the most recent year for which national mortality data are available, 3,907 persons died in the United States from fire-related injuries; residential fires accounted for 2,955 (76%) of these deaths. The National Fire Protection Association (NFPA) reported that approximately 396,500 residential fires occurred in 2001. Injuries from residential fires are preventable by improving awareness of the common causes of fires and by using simple interventions (e.g., properly maintained smoke alarms and fire escape plans). Surveillance of fire-related injuries can aid prevention by increasing the understanding of these injuries and by identifying at-risk populations to target for interventions and education. To characterize nonfatal residential fire-related injuries treated in U.S. hospital emergency departments (EDs) during 2001, CDC analyzed data from the National Electronic Injury Surveillance System-All Injury Program (NEISS-AIP). This report summarizes the results of that analysis, which indicate that, in 2001, an estimated 25,717 nonfatal residential fire-related injuries were treated in U.S. hospital EDs. Fire prevention and safety interventions and education should target at-risk populations for fire-related injuries.     

Fire characteristics associated with firefighter injury on large federal wildland fires

PurposeWildland fires present many injury hazards to firefighters. We estimate injury rates and identify fire-related factors associated with injury.MethodsData from the National Interagency Fire Center from 2003 to 2007 provided the number of injuries in which the firefighter could not return to his or her job assignment, person-days worked, and fire characteristics (year, region, season, cause, fuel type, resistance to control, and structures destroyed). We assessed fire-level risk factors of having at least one reported injury using logistic regression. Negative binomial regression was used to examine incidence rate ratios associated with fire-level risk factors.ResultsOf 867 fires, 9.5% required the most complex management and 24.7% required the next-highest level of management. Fires most often occurred in the western United States (82.8%), during the summer (69.6%), caused by lightening (54.9%). Timber was the most frequent fuel source (40.2%). Peak incident management level, person-days of exposure, and the fire's resistance to control were significantly related to the odds of a fire having at least one reported injury. However, the most complex fires had a lower injury incidence rate than less complex fires.ConclusionsAlthough fire complexity and the number of firefighters were associated with the risk for at least one reported injury, the more experienced and specialized firefighting teams had lower injury incidence.     

EVALUATED COMMUNITY FIRE SAFETY INTERVENTIONS IN THE UNITED STATES: A REVIEW OF CURRENT LITERATURE

The purpose of the study was to assess the state of fire prevention research, provide an updated synthesis of evaluated fire prevention programs, and discuss the role of fire fighters and data systems in prevention efforts. The review included all evaluations of U.S. based fire prevention interventions published between January 1998 and September 2004 and any earlier articles about U.S. fire prevention interventions not included in two prior review articles. We retrieved information from each identified study including evaluation findings, involvement of fire service personnel and use of existing data systems. We identified twelve articles: seven reported on smoke alarm interventions, three on multi-faceted programs, and two other programs. Five programs involved fire service personnel in the design, implementation, and/or evaluation, and three used existing data systems. Studies reviewed suggest that canvassing and smoke alarm installations are the most effective means of distributing alarms and increasing the functional status of distributed alarms. The functionality of smoke alarms, an issue noted in earlier reviews, remains a problem. Programs involving partnerships with fire departments have indicated success in preventing fires and deaths, improving smoke alarm ownership and functional status, and improving children's fire safety knowledge. Using existing data systems to target and to evaluate interventions was effective. In the years since prior reviews, some improvements in the rigor of evaluation designs have been made, but there is still a need for high quality evaluations that will inform fire injury prevention efforts.     

Fire-related deaths among Aboriginal people in British Columbia, 1991-2001

BACKGROUND: Fire-related mortality rates are known to be higher in Aboriginal people in BC. The purpose of this study was to describe the epidemiology and context of fire-related deaths in this population. METHODS: All death registrations attributable to fires in the province were identified by the B.C. Vital Statistics Agency (1991-2001). Age-specific death rates (ASDR) and age-standardized mortality rates (ASMR) were calculated for Status Indians and other residents. Data from Coroner's reports from the B.C. Coroners' Service (1997-2001) were used to describe the context of Aboriginal fire-related deaths. RESULTS: The overall fire-related ASMR for Status Indians and other residents were 0.66 deaths and 0.07 deaths/10,000 population respectively. Annual ASMR for both populations were constant over the study period. ASDR were higher in every age category for Status Indians; children and seniors had higher rates in both populations. Twenty-seven Aboriginal fatalities (20 fires) were identified for the contextual analysis. Key findings were: 48% of the total sample had elevated blood alcohol levels; 30% of the fires were caused by lit cigarettes (majority of decedents were intoxicated); 15% of the fires were caused by electric heating sources; at least 34% of fires occurred in homes with absent or non-functional smoke alarms. INTERPRETATION: Fire-related mortality among Aboriginal people in BC is a preventable public health concern. In this population, fire safety and prevention programs should consider improving the prevalence of functioning smoke alarms, promoting the safe use of heat sources, and decreasing smoking behaviours and the use of alcohol.     

Effectiveness of the Cigarette Ignition Propensity Standard in Preventing Unintentional Residential Fires in Massachusetts

Objectives. We evaluated the Massachusetts Fire Safe Cigarette Law’s (FSCL’s) effectiveness in preventing residential fires.Methods. We examined unintentional residential fires reported to the Massachusetts Fire Incident Reporting System from 2004 to 2010. We analyzed FSCL effect on the likelihood of cigarette- versus noncigarette-caused fires and effect modification by fire scenario factors by using an interrupted time series regression model. We analyzed the effect of FSCL on monthly fire rates with Poisson regression.Results. Cigarettes caused 1629 unintentional residential fires during the study period. The FSCL was associated with a 28% (95% confidence interval = 12%, 41%) reduction in the odds of cigarette- versus noncigarette-caused fires, although not in analyses restricted to casualty fires, with smaller sample size. The largest reductions were among fires in which human factors were involved; that were first ignited on furniture, bedding, or soft goods; that occurred in living areas; or that occurred in the summer or winter.Conclusions. The FSCL appears to have decreased the likelihood of cigarette-caused residential fires, particularly in scenarios for which the ignition propensity standard was developed. Current standards should be adopted, and the need for strengthening should be considered.Approximately 360 900 residential building fires are reported each year in the United States, resulting in an estimated 2495 deaths, 13 250 injuries, and $7 billion in property losses.1 The number of fatalities and injuries caused by residential fires is gradually decreasing, but many residential fires caused by cigarettes remain preventable and continue to pose a significant public health problem.2 Cigarettes were responsible for 90 800 fires, 610 civilian deaths, 1570 civilian injuries, and $633 million in direct property damages and other economic loss in the United States in 2010,3 and account for an estimated 10% of all fire fatalities worldwide.4 Furthermore, 1 in 4 deaths by cigarette-caused fires is not of the smokers themselves.5 Thirty-four percent are children of the smokers, 25% are neighbors or friends, 14% are spouses or partners, and 13% are the parents. Persons at increased risk include children aged 4 years and younger6,7 and adults aged 65 years and older,6,7 African Americans and Native Americans,6,7 the poorest of Americans,7,8 persons living in rural areas7,9 or in manufactured homes or substandard housing,10,11 and responding firefighters.2As early as 1929, Rep Edith Nourse Rogers of Massachusetts called for the National Bureau of Standards to develop technology for a “self-snubbing” cigarette.12 The Bureau developed such a cigarette, but stated that a manufacturer would have to adopt it.13 Later, in 1947, the National Fire Protection Association called on cigarette manufacturers to take some responsibility for the problem of cigarette-ignited fires14; however, tobacco manufacturers did not respond publicly to either of these appeals. Instead, they opposed legislative efforts to regulate cigarette ignition propensity, while conducting extensive cigarette ignition propensity research and development since the early 1970s.15The Cigarette Safety Act of 198416 required the creation of an advisory group, which issued a final report in 1987 concluding that developing a cigarette with minimum ignition propensity was technically, economically, and commercially feasible.17 Subsequently, the National Institute of Standards and Technology developed standards for cigarette ignition propensity testing18–21 as charged by the Fire Safe Cigarette Act of 1990.22 This testing protocol, presently known as the ASTM E2187-04 Standard Test Method of Measuring the Ignition Strength of Cigarettes,23 requires observing a lit cigarette placed on 10 layers of standard filter paper in a draft-free environment.23 A brand is in compliance with the regulation if no more than 25% of cigarettes tested in a trial exhibit burn through their full tobacco column lengths. The State of New York in 200415,24,25 was the first jurisdiction to implement cigarette ignition propensity regulations using this standard, which has now been adopted by all 50 US states as well as in Canada, Australia, Finland, South Africa, and the European Union.26–30Massachusetts implemented its Fire Safe Cigarette Law (FSCL) on January 1, 2008. In the present study, we utilized data from the Massachusetts Fire Incident Reporting System (MFIRS), a comprehensive, standardized fire incidence reporting system maintained by the Massachusetts Department of Fire Services. The purpose was to evaluate the Massachusetts FSCL’s effectiveness in reducing cigarette-caused fires and associated casualties and to determine whether effectiveness has differed by ignition substrate, origin of fire, or human, temporal, or geographic factors.     

Fire fatalities among children: an analysis across Philadelphia's census tracts

OBJECTIVE: This study investigates the possible causes of high levels of residential fire deaths to children younger than 15 years of age in Philadelphia from 1989 to 2000. METHODS: The authors analyzed 246 deaths from 146 residential fires by census tract in Philadelphia using both individual level data and aggregate level data drawn from the records of the Fire Marshall's Office. Death rates by age and sex were calculated using the 1990 Census. Data on fires from official records were combined with aggregate level data by census tract from the 1990 Census and analyzed using logistic regression. Newspaper articles on the fires analyzed were used to identify residences with possible fire code violations. The authors used data from the Philadelphia Bureau of Licenses and Inspections to provide evidence of code violations. RESULTS: The statistically significant variables that resulted from the logistic regression were census tracts in the highest quartile for low income households, census tracts in the highest quartile for single-parent households with children younger than age 18, census tracts in the highest quartile for houses built before 1939, and the number of children younger than 15 years of age in a census tract. CONCLUSION: Population characteristics by census tract are useful in identifying risk factors for residential fire deaths of children. Census tracts identified as at highest risk can provide fire prevention units with opportunities to take preventative measures such as the distribution of smoke detectors, and the education of residents about the dangers of careless smoking and planning for the rescue of children in the event of a fire.     

The US National Tuberculosis Surveillance System: A Descriptive Assessment of the Completeness and Consistency of Data Reported from 2008 to 2012

Background

In 2009, the Tuberculosis (TB) Information Management System transitioned into the National TB Surveillance System to allow use of 4 different types of electronic reporting schemes: state-built, commercial, and 2 schemes developed by the Centers for Disease Control and Prevention. Simultaneously, the reporting form was revised to include additional data fields.

Objective

Describe data completeness for the years 2008-2012 and determine the impact of surveillance changes.

Methods

Data were categorized into subgroups and assessed for completeness (eg, the percentage of patients dead at diagnosis who had a date of death reported) and consistency (eg, the percentage of patients alive at diagnosis who erroneously had a date of death reported). Reporting jurisdictions were grouped to examine differences by reporting scheme.

Results

Each year less than 1% of reported cases had missing information for country of origin, race, or ethnicity. Patients reported as dead at diagnosis had death date (a new data field) missing for 3.6% in 2009 and 4.4% in 2012. From 2010 to 2012, 313 cases (1%) reported as alive at diagnosis had a death date and all of these were reported through state-built or commercial systems. The completeness of reporting for guardian country of birth for pediatric patients (a new data field) ranged from 84% in 2009 to 88.2% in 2011.

Conclusions

Despite major changes, completeness has remained high for most data elements in TB surveillance. However, some data fields introduced in 2009 remain incomplete; continued training is needed to improve national TB surveillance data.     

Update: influenza activity--United States and worldwide, May 21-September 9, 2006

In the United States, CDC uses seven systems for national influenza surveillance, four of which operate year-round: 1) the World Health Organization (WHO) and the National Respiratory and Enteric Virus Surveillance System (NREVSS) collaborating laboratory systems; 2) the U.S. Influenza Sentinel Provider Surveillance System; 3) the 122 Cities Mortality Reporting System; and 4) a national surveillance system that records pediatric deaths associated with laboratory-confirmed influenza. Data from these four systems are included in this report.     

Evaluation of Fire-Safety Programs that use 10-Year Smoke Alarms

The Centers for Disease Control and Prevention began funding a Smoke Alarm Installation and Fire Safety Education (SAIFE) program in 1998. This program involves the installation of lithium-powered “10-year” smoke alarms in homes at high risk for fires and injuries. This study aimed to (1) determine among original SAIFE homes if the lithium-powered alarms were still present and functional 8–10 years after installation and (2) understand factors related to smoke alarm presence and functionality. Data on a total of 384 homes and 601 smoke alarms in five states were collected and analyzed. Only one-third of alarms were still functional; 37% of installed alarms were missing; and 30% of alarms were present, but not functioning. Alarms were less likely to be functioning if they were installed in the kitchen and if homes had a different resident at follow-up. Of the 351 alarms that were present and had a battery at the time of the evaluation, only 21% contained lithium-powered batteries. Of these, 78% were still functioning. Programs that install lithium-powered alarms should use units that have sealed-in batteries and “hush” buttons. Additionally, education should be given on smoke alarm maintenance that includes a message that batteries in these alarms should not be replaced. Lithium-powered smoke alarms should last up to 10 years if maintained properly.     

Newspapers: a source for injury surveillance?

Newspapers have not been extensively evaluated as an injury surveillance source. We compared clippings with medical examiner records for 45 residential fire deaths and 58 drownings of children to assess extent, completeness, and accuracy of newspaper coverage. Newspapers covered 96% of the fire fatalities and 78% of the drownings and contained more information than medical examiner records on several factors, including fire cause and smoke detector presence, pool fences, warning signs, and supervision of children.     

Pilot Study of a Novel Partnership for Installing Smoke Alarms

Objectives To demonstrate the feasibility of partnering fire department personnel and home visiting nurses to increase the number of low-income homes protected by smoke alarms. Methods During a regularly scheduled home visit, nurses at the Nurse-Family Partnership of Maricopa County (NFP) informed their clients about an opportunity to have smoke alarms installed in their homes for free. For interested families, nurses sent a referral to the Phoenix Fire Department (PFD), scheduled an appointment, and accompanied the PFD volunteers during the installation. During the appointment, PFD personnel installed alarms and provided safety education. Clients completed a follow-up survey 1–3 months after the installation visit. In-depth interviews were completed with key informants from NFP and PFD to solicit feedback on the program. Results Fifty-two smoke alarm installation visits were completed. Before the fire department arrived, 55% of homes had no working smoke alarm. Almost all (94%) homes received at least one new smoke alarm, and every home had at least one working smoke alarm at the end of the fire department visit. At follow-up, all homes maintained at least one working smoke alarm. Members from both organizations were enthusiastic about, and supportive of the project. NFP nurses appreciated the skill and knowledge of the firefighters; PFD representatives noted that the nurses’ relationships with clients made it easier for them to gain access to families who are often described as “hard-to-reach”. Conclusions Partnering home visiting nurses and fire departments can be successful to increase the number of vulnerable homes with smoke alarms.     

The use of sentinel injury deaths to evaluate the quality of multiple source reporting for occupational injuries

PURPOSE: This study sought to develop an efficient method for evaluating the validity and completeness of routinely available sources of occupational injury fatality data. METHODS: Deaths due to falls from elevations, machinery, and electrocutions were selected as sentinel injuries likely to have occurred at work. Deaths from these injuries were identified from Maryland vital statistics over 7 years. The work-relatedness of these injuries and sensitivity of reporting were determined from death certificates, medical examiner reports, the National Traumatic Occupational Fatality System (NTOF), the Maryland Occupational Safety and Health Administration (MOSH), and Workers' Compensation (WC) data. RESULTS: A total of 527 deaths were identified for ages 16 and above, of which, 45% were work-related. Identification of work-related deaths varied by source: medical examiner (100%), death certificates (89%), NTOF (68%), MOSH (59%), and WC (44%). Reporting differed by age, cause of injury, year, occupation, and industry. CONCLUSIONS: Examination of work-relatedness for deaths from certain causes is an efficient means of evaluating the quality of occupational injury reporting source data. These sentinel injuries uncovered significant underreporting in sources used by national surveillance systems, resulted in improved NTOF reporting, and suggest the need to make more use of medical examiner data when available.     

Strategies to Increase Smoke Alarm Use in High-Risk Households

A 3-year project was undertaken to evaluate two methods of promoting residential smoke alarm installation and maintenance in high risk households across the U.S. Five states (Arkansas, Maine, Maryland, Massachusetts, and North Carolina) participated. The two strategies under study were direct installation of smoke alarms and distribution of a voucher for free smoke alarms. The target population included occupants of high-risk households without working smoke alarms who were approached as part of a door-to-door canvassing program. Fire Safety education was provided to both groups. A follow up assessment conducted 6-12 months post intervention assessed the presence and functional status of smoke alarms in each of the two groups. Demographic and fire safety data were also collected at baseline and follow up for each group. 4,455 households were enrolled in the study [Installation Group: 2,206 (49.5%), Voucher Group: 2,249 (50.5%)]. Baseline characteristics of the groups within each state were comparable. Follow up data was obtained on 1,583 installation group households and 1,545 voucher group households. At follow up, 1,421 (89.8%) households in the installation group had working smoke alarms, compared with 997 (65%) households in the voucher group, Odds Ratio 4.82 (95% CI=3.97, 5.85) (p <.0001). On average, 47% of all households enrolled in the voucher group did not redeem their vouchers (range 26-63%). Direct installation of alarms by program staff resulted in working smoke alarms in 90% of households receiving the direct installation intervention. Only 65% of voucher households had functioning alarms at follow up, largely due to failure to redeem vouchers.     

Homicide and suicide rates--national violent death reporting system, six states, 2003

In 2003, CDC instituted a new surveillance system, the National Violent Death Reporting System (NVDRS); the system collects detailed information regarding violent deaths from multiple sources. This report describes preliminary 2003 data from the first six states that participated in NVDRS and compares these data with 1993-2002 data from the National Vital Statistics System (NVSS). The findings indicate a substantial increase in homicide rates among young males from 2002 to 2003 and substantial increases in both homicide and suicide rates among males from 2000 to 2003. These findings underscore the need for states to have timely information for effective violence-prevention programs.     

Reporting race and ethnicity data--National Electronic Telecommunications System for Surveillance, 1994-1997

Reporting accurate and complete race and ethnicity data in public health surveillance systems provides critical information to target and evaluate public health interventions, particularly for minority populations. A national health objective for 2000 is to improve data collection on race and ethnicity in public health surveillance and data systems. To determine progress toward meeting this goal in CDC's National Electronic Telecommunications System for Surveillance (NETSS), the percentage of case reports of selected nationally notifiable diseases reported through NETSS with information regarding a patient's race and ethnicity was calculated for 1994-1997. The findings of this study indicate these data were received for approximately half of the cases, and the completeness of reporting of race and ethnicity data to NETSS had not improved.     

WHERE THERE'S SMOKING,THERE'S FIRE: THE EFFECTS OF SMOKING POLICIES ON THE INCIDENCE OF FIRES IN THE USA

Fires and burns are among the leading causes of unintentional death in the USA. Most of these deaths occur in residences, and cigarettes are a primary cause. In this paper, I explore the relationship between smoking, cigarette policies, and fires. As smoking rates decline, there are fewer opportunities for fires; however, the magnitude of any reduction is in question. Using a state‐level panel, I find that increases in cigarette prices are associated with fewer residential fires and deaths. However, laws regulating indoor smoking are associated with more fires; in particular, restaurant and bar smoking bans are associated with an increase in fires at eating and drinking establishments. This increase is important given the growing popularity of smoking bans in the USA and around the world. As workplaces, schools, and businesses ban smoking and remove ashtrays, smokers who continue to smoke are left without safe options for disposal of cigarettes, leading to more opportunities for fires to start. Copyright © 2013 John Wiley & Sons, Ltd.     

Prevalence of residential smoke alarms and fire escape plans in the U.S.: results from the Second Injury Control and Risk Survey (ICARIS-2)

OBJECTIVES: This study was conducted to estimate (1) the proportion of U.S. homes with installed smoke alarms and fire escape plans, and (2) the frequency of testing home smoke alarms and of practicing the fire escape plans. METHODS: The authors analyzed data on smoke alarms and fire escape plans from a national cross-sectional random-digit dialed telephone survey of 9,684 households. RESULTS: Ninety-five percent of surveyed households reported at least one installed smoke alarm and 52% had a fire escape plan. The prevalence of alarms varied by educational level, income, and the presence of a child in the home. Only 15% tested their alarms once a month and only 16% of homes with an escape plan reported practicing it every six months. CONCLUSION: While smoke alarm prevalence in U.S. homes is high, only half of homes have a fire escape plan. Additional emphasis is needed on testing of installed smoke alarms and on preparedness for fire escape plans.