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Improving end-of-life care in nursing facilities: the Community State Partnership To Improve End-of-Life Care--California.

BACKGROUND: The California Coalition for Compassionate Care formed in 1998 when activists and organizational leaders in several arenas sought to link their efforts for synergistic impact on end-of-life care and to obtain funding to sustain their forward momentum and collaboration. The Coalition focused on public engagement, professional education, and reforms in skilled nursing facilities. With skilled nursing facilities, the Coalition's work built on the efforts of the ECHO (Extreme Care, Human Options) Long Term Care Task Force, which served as a precursor to the Coalition. OBJECTIVE: The Coalition's objective was to assist committed facilities in devising processes of care that would operationalize basic end-of-life care principles in a manner specific to their particular facility. DESIGN: The Coalition recruited three-member leadership teams from nursing facilities throughout California to attend a 2-day training program, write an action plan, and receive 6 months of modest follow-up support. To assess its success, the group used posttraining evaluations, a follow-up evaluation, a focus group, and informal feedback over several years to assess the dynamics, achievements, and challenges of their efforts. RESULTS: In 2000-2002 the training reached 298 people representing 109 nursing facilities and each district office of the nursing facility surveyors. Response to the training was enthusiastic. Self-reported improvements in 27 care practices were best in the areas of pain assessment and management. Completion of nursing facilities' self-identified action plans varied widely. Participants generally perceived the commitment to improving end-of-life care as a vehicle for improving the overall care and quality management in nursing facilities. CONCLUSIONS: The specific challenges of organizational change in nursing facilities require sustained, focused leadership and hands-on guidance to overcome the inevitable barriers and setbacks. The Coalition's experience confirms that coalitions depend upon personal commitments and relationships, a focus on practical products, and a consistent infrastructure.

Advisory Committees↗

Microbicide preference among young women in California.

BACKGROUND: Microbicides for HIV/sexually transmitted infection (STI) prevention are still in development. Microbicide acceptability studies have thus focused on soliciting input from individuals about hypothetical products using traditional epidemiological and behavioral research methodologies. Here, we integrate a well-established market research method, conjoint analysis, with more traditional epidemiological and behavioral research to examine potential users' preferences for different microbicide formulations. METHODS: Focus group discussions (n = 67) were held with a diverse population of young men and women (aged 18-32 years) from Northern California. Then, young women participated in structured surveys (n = 321) that included a conjoint study, a methodology not yet used in microbicide acceptability. The main outcome measures were intentions for different microbicide formulations, inferred preferences for microbicide characteristics, and self-reported risk factors for HIV, other STIs, and pregnancy. RESULTS: Risk of STIs and unwanted pregnancies is a concern within this population. Participants' responses suggest that the ideal microbicide would (1) offer protection from pregnancy, HIV, STIs, and vaginal infections, (2) offer as much protection as condoms, (3) allow insertion up to 8 hours prior to sexual activity, (4) be available over the counter (OTC), (5) be inserted with an applicator, and (6) have only slight leakage not requiring a panty liner. The average predicted purchase probability for this ideal microbicide was 69%. CONCLUSIONS: Our findings help illustrate microbicide product preferences and demand among young women in California, and the methodological approach should lend itself to other populations as well as during clinical trials when understanding product use and nonuse is critical.

Administration, Intravaginal↗

Case-control study of risk factors for incident Lyme disease in California.

To identify risk factors for incident Lyme disease in California during the period June 1, 1991 to December 31, 1992, the authors compared the activities of 101 cases of physician-diagnosed erythema migrans ascertained via both active and passive surveillance with those of 107 controls matched on sex, age, and neighborhood. Questions asked by telephone pertained to location of home, presence of wildlife around the house, hours of outdoor work and outdoor leisure activities, pet ownership, precautionary measures to avoid tick bites, tick removal methods, and knowledge about Lyme disease. For cases, activities pertained to the month prior to the onset of erythema migrans; controls were interviewed about the same activities during the same one-month period. The observation of deer and lizards around the home and a history of exposure to ticks were associated with Lyme disease (deer, odds ratio (OR) = 2.53, 95% confidence interval (CI) 1.25-5.15; lizards, OR = 2.14, 95% CI 1.14-4.04). However, the only activity associated with Lyme disease was the use for more than 5 hours per week of wide maintained trails (OR = 11.33, 95% CI 1.33-123.5); this association occurred only in persons with other outdoor leisure activities. No other behaviors or activities were identified as risk factors for acquisition of Lyme disease in California.

Adolescent↗

Ambient air pollution and risk of birth defects in Southern California.

The authors evaluated the effect of air pollution on the occurrence of birth defects ascertained by the California Birth Defects Monitoring Program in neonates and fetuses delivered in southern California in 1987-1993. By using measurements from ambient monitoring stations of carbon monoxide (CO), nitrogen dioxide, ozone, and particulate matter <10 microm in aerodynamic diameter, they calculated average monthly exposure estimates for each pregnancy. Conventional, polytomous, and hierarchical logistic regression was used to estimate odds ratios for subgroups of cardiac and orofacial defects. Odds ratios for cardiac ventricular septal defects increased in a dose-response fashion with increasing second-month CO exposure (odds ratio (OR)(2nd quartile) CO = 1.62, 95% confidence interval (CI): 1.05, 2.48; OR(3rd quartile) CO = 2.09, 95% CI: 1.19, 3.67; OR(4th quartile) CO = 2.95, 95% CI: 1.44, 6.05). Similarly, risks for aortic artery and valve defects, pulmonary artery and valve anomalies, and conotruncal defects increased with second-month ozone exposure. The study was inconclusive for other air pollutants. The authors' results are supported by the specificity of the timing of the effect and some evidence from animal data; however, this is the first known study to link ambient air pollution during a vulnerable window of development to human malformations. Confirmation by further studies is needed.

Air Pollutants↗

Epidemiology of Aeromonas infections in California.

In May 1988, California became the first state to make aeromonas infection a reportable condition, thereby permitting the first population-based study of the epidemiology of infection caused by Aeromonas organisms. Case investigations were carried out on 219 of the 280 patients whose infections were reported during the first year of notification. The overall incidence rate for Aeromonas isolation was 10.6 cases per 1 million population. The gastrointestinal tract was the most commonly reported site from which Aeromonas was isolated (81%), with wounds being the next most common source (9%). Five (2%) of the 219 patients died; all five had serious underlying medical conditions apart from aeromonas infection. No common-source enteric outbreaks were reported. The high rate of gastrointestinal symptoms and isolation of organisms from medically vulnerable patients and the fact that other bacterial enteric pathogens were rarely isolated from symptomatic patients support evidence from previous studies that Aeromonas is an enteric pathogen. The evidence from these case reports in California suggests that aeromonas infections are not an important public health problem and are largely nonpreventable. Thus, public health surveillance is not necessary and mandatory reporting has been discontinued.

Adolescent↗

Wolbachia and cytoplasmic incompatibility in the California Culex pipiens mosquito species complex: parameter estimates and infection dynamics in natural populations.

Before maternally inherited bacterial symbionts like Wolbachia, which cause cytoplasmic incompatibility (CI; reduced hatch rate) when infected males mate with uninfected females, can be used in a program to control vector-borne diseases it is essential to understand their dynamics of infection in natural arthropod vector populations. Our study had four goals: (1) quantify the number of Wolbachia strains circulating in the California Culex pipiens species complex, (2) investigate Wolbachia infection frequencies and distribution in natural California populations, (3) estimate the parameters that govern Wolbachia spread among Cx. pipiens under laboratory and field conditions, and (4) use these values to estimate equilibrium levels and compare predicted infection prevalence levels to those observed in nature. Strain-specific PCR, wsp gene sequencing, and crossing experiments indicated that a single Wolbachia strain infects Californian Cx. pipiens. Infection frequency was near or at fixation in all populations sampled for 2 years along a >1000-km north-south transect. The combined statewide infection frequency was 99.4%. Incompatible crosses were 100% sterile under laboratory and field conditions. Sterility decreased negligibly with male age in the laboratory. Infection had no significant effect on female fecundity under laboratory or field conditions. Vertical transmission was >99% in the laboratory and approximately 98.6% in the field. Using field data, models predicted that Wolbachia will spread to fixation if infection exceeds an unstable equilibrium point above 1.4%. Our estimates accurately predicted infection frequencies in natural populations. If certain technical hurdles can be overcome, our data indicate that Wolbachia can invade vector populations as part of an applied transgenic strategy for vector-borne disease reduction.

Animals↗

Evaluating the effectiveness of health promotion policy: changes in the law on drinking and driving in California.

The purpose of the study was to determine the utility of general population health surveillance data for evaluating broad policy changes that relate to health promotion. Data were drawn from the United States (US) Behavioral Risk Factor Surveillance System (BRFSS) for one US state, California. Because these data are collected frequently and continually, a quasi-experimental approach to the evaluation was possible using a type of interrupted time series analysis or longitudinal impact analysis. A statistically significant decrease in the number of declared episodes of drinking and driving was found after enactment of new state policy. These findings were compared and found consistent with another study in California that examined the effect of changes in the law on alcohol-related traffic accidents. Our findings suggest that data from a behavioral surveillance system, in this case the BRFSS, are useful to evaluate the effect of a health promotion intervention. Further, the study demonstrates the utility of comparing different data sources when assessing a population-wide change in health promotion policy.

Alcohol Drinking↗

Attitudes toward anti-tobacco policy among California youth: associations with smoking status, psychosocial variables and advocacy actions.

To prevent smoking and exposure to environmental tobacco smoke, California has implemented anti-tobacco policies, including laws restricting youth access to tobacco, and smoking bans in workplaces, schools, restaurants and bars. Although studies have examined adults' attitudes toward anti-tobacco policies, little is known about adolescents' awareness of and support for these policies. This study examined attitudes toward anti-tobacco policies in a sample of 6887 10th grade California adolescents. Awareness of anti-tobacco policies was highest among current smokers and lowest among susceptible never-smokers. Support for anti-tobacco policies was highest among non-susceptible never-smokers and lowest among current smokers. Policy awareness and support were significantly associated with psychosocial tobacco-related variables (e.g. perceived consequences of smoking, friends' smoking, perceived access to cigarettes, prevalence estimates of smoking among peers, cigarette offers and cigarette refusal self-efficacy). Policy awareness and support were associated with the probability of performing advocacy actions against tobacco use. Although these results cannot prove a causal association, they suggest that adolescents' attitudes toward anti-tobacco policies may play a role in their decisions about smoking. Tobacco control and education programs should include information about existing anti-tobacco policies, and should educate youth about the importance and benefits of anti-tobacco policies.

Adolescent↗

Distributions of percentage methaemoglobin in several population groups in California.

Several epidemiological studies in California have yielded data on percentage methaemoglobin in healthy individuals. The population groups represented include infants, elementary and high school children, and adults. The distributions of values in each group are described, as well as the differences between groups. Factors affecting the distributions are discussed. In the study of infants, the factors assessed include respiratory and gastrointestinal disease, and food and water intake. In schoolchildren, the effect of age and location of residence within Southern California are evaluated, and in adults, smoking, gender and time of day. Among infants in the 31 to 60 day age range, 33 per cent had methaemoglobin levels of 3 per cent or above, while 8 per cent had methaemoglobin levels of 4 per cent or above. Among adults, 15 per cent had levels of 3 per cent or above, while 2 per cent had levels of 4 per cent or above. Among both elementary and high school students, 3 per cent had methaemoglobin levels of 3 per cent or above, while less than 1 per cent had levels of 4 per cent or greater.

Adult↗

Changing trends in the epidemiology of human brucellosis in California from 1973 to 1992: a shift toward foodborne transmission.

From 1973 through 1992, 426 cases of human brucellosis were reported in California, of which 98% were laboratory confirmed. Brucella melitensis was identified in 185 cases (78.7% of the bacteriologically typed cases). Hispanics accounted for 81% of the cases from 1983 to 1992 compared with 65% during the previous decade (P < .01). The population-adjusted average annual incidence was higher in Hispanics, especially in children and teenagers, compared with non-Hispanic whites and African Americans. Slaughterhouse cases decreased from 25% during 1973-1982 to < 3% during the following decade. Changes in case distribution were characterized by a decreasing incidence in the Central Valley and an increasing incidence in the San Francisco Bay area and the southern Coast Range. Hispanics were more likely to report being infected by consumption of milk and cheese in Mexico during 1983-1992 than during the previous 10 years (relative risk, 1.45). Between 1973 and 1992, human brucellosis in California evolved from an occupational to a foodborne illness.

Adolescent↗

How patients' sociodemographic characteristics affect comparisons of competing health plans in California on HEDIS quality measures.

OBJECTIVE: To estimate effects of patient sociodemographic characteristics on differential performance within and between plans in a single market area on the HEDIS quality of care measures, widely used for purchasing and accreditation decisions in the United States. DESIGN: Using logistic regression, we modeled associations of age, sex, and zip-code-linked sociodemographic characteristics of health plan members with HEDIS measures of screening and preventive services. We calculated the impact of adjusting for these associations on measures of health plan performance. SETTING: Twenty-two California health plans provided individual-level HEDIS data and zip codes of residence for up to 2 years. PARTICIPANTS: 110 541 commercially insured health plan members. MAIN OUTCOME MEASURES: Ten HEDIS quality-of-care measures. RESULTS: Performance on quality measures was negatively associated with percent receiving public assistance in the local area (seven out of 10 measures), percent Black (three measures), and percent Hispanic (four measures), and positively associated with percent college educated (six measures), and percent urban (three measures), controlling for plan, while associations with percent Asian were positive for three measures and negative for one (P < 0.05 for six associations, P < 0.01 for four, P < 0.001 for 17). Associations were consistent across plans and over time. Adjustment for these characteristics changed rates for most plans and measures by <5 percentage points. CONCLUSIONS: Adjustment for socioeconomic case mix has little impact on the measured performance of most plans in California, but substantially affects a few. The impact of case mix on indicators should be considered when making comparisons of health plan quality.

Benchmarking↗

Concentration verification of ethanol/nitrogen compressed gas cylinders prior to use for periodic determinations of accuracy in California.

A method that uses compressed gas ethanol breath standard (EBS) cylinders to perform periodic determinations of accuracy on evidential breath alcohol instruments in California was developed. To use EBS cylinders, the California State Department of Health Services required verification of the ethanol content of the EBS cylinders using an infrared method. The infrared method developed employs a modified Alcotest 7110 MK III-C manufactured by National Draeger, Inc. that functions at the 9.5-mm wavelength of the infrared spectrum. Criteria and methodology for verifying EBS cylinder ethanol concentrations are described.

Air Pressure↗

Diel changes in adult mosquito microhabitat temperatures and their relationship to the extrinsic incubation of arboviruses in mosquitoes in Kern County, California.

Microhabitat temperatures experienced by nocturnally active Culex tarsalis Coquillett mosquitoes were measured in the southern San Joaquin Valley of California. Temperatures of the diurnal resting shelter and nocturnal activity air space were measured by digital recorder at three Cx. tarsalis habitats in Kern County. Temperatures measured by digital recorders agreed well with temperatures recorded concurrently at nearby California Irrigation Management and Inspection System weather stations. Monthly temperatures among habitats were combined to depict the diel temperature regimen experienced by female Cx. tarsalis as a consequence of daily movement between the diurnal resting shelter and nocturnal air space. Transitions between the two microhabitats corresponded to the times of mosquito ingress and egress (i.e., sunrise and sunset). The composite daily temperature mean ranged from 7.4 degrees C in December to 21.5 degrees C in July, and temperature extremes seldom exceeded a daily maximum of 25.0 degrees C during the summer or dropped below a daily minimum of 5.0 degrees C during the winter. Overall, mosquitoes occupied a composite thermal environment where the extrinsic incubation of an arbovirus would have occurred at ambient temperatures that were cooler than either the diurnal resting shelter or activity air space.

Animals↗

Evolutionary relationships among California serogroup viruses (Bunyaviridae) and Aedes mosquitoes (Diptera: Culicidae)

More than 100 published and four unpublished papers recording virus isolations of California (CAL) serogroup viruses from mosquitoes and other arthropods were analyzed, followed by a comparison of a contemporary classification of mosquitoes of the genus Aedes with a contemporary classification of CAL serogroup viruses. Using criteria of five or more total isolations of a given virus from a given species of mosquito, and a minimum infection rate of 1:10,000 or greater (more frequent), Aedes, and to a lesser extent Culiseta, species were found to be the arthropods most frequently involved as vectors. Such a comparison could not explain all virus-vector associations on the basis of coevolution of viruses in Aedes mosquito species, probably because of the crossing over of viruses to other mosquito species through horizontal transmission and because of deficiencies in currently available classifications. Coevolution of host-parasite systems is discussed, as are the inadequacies of contemporary taxonomic treatments of viruses and Aedes mosquitoes. The paper ends with hypothetical reconstructions of virus-mosquito relationships over time and possible routes of dispersal of California serogroup viruses to their present geographical distributions.

Aedes↗

Survey of birds and lizards for ixodid ticks (Acari) and spirochetal infection in northern California.

A total of 138 birds (24 species) was captured in an oak woodland between December 1988 and June 1989 at the University of California, Sierra Foothill Range Field Station, Yuba County, Calif. Ticks were not found on 71 birds captured between December 1988 and March 1989. Five subadult Ixodes pacificus Cooley & Kohls were removed from 3 of 67 birds caught between April and June 1989. These three birds, an orange-crowned warbler (Vermivora celata (Say], a lazuli bunting (Passerina amoena (Say], and a chipping sparrow (Spizella passerina (Bechstein], represent new host records for I. pacificus in California. Tissues from two ticks and thick blood films prepared from 126 birds tested negative for spirochetes by direct immunofluorescence (DI). A total of 172 larval and 197 nymphal I. pacificus was removed from 15 of 16 western fence lizards (Sceloporus occidentalis Baird & Girard) caught between April and June 1989 in the same location as were birds. Thick blood films prepared from all 16 lizards and tissue smears from 334 of the ticks (143 larvae and 191 nymphs) were DI test-negative for spirochetes. One (1.1%) of 93 adult I. pacificus collected at the bird-lizard capture site in February 1989 was infected with spirochetes that resembled B. burgdorferi.

Animals↗

Could Aedes albopictus (Diptera: Culicidae) become established in California tree holes?

The ability of temperate zone-adapted Aedes albopictus (Skuse) to survive and complete development in California tree holes was evaluated in laboratory experiments that assessed development under simulated wet-season conditions, larval competition with Aedes sierrensis at different food levels, temporal survivorship of eggs stored under different humidities and temperatures, and suitability of larvae as hosts for the indigenous parasite Lambornella clarki. At all resource levels, Ae. albopictus completed development at temperatures similar to those in natural tree hole water in spring and early summer (> or = 16 degrees C), but not those during the rainy winter months (4-11 degrees C). In competition studies at 21 degrees C, the population performance (i.e., survivorship, pupation time, and adult size) of Ae. albopictus at all resource levels was as good or better when larvae developed with Ae. sierrensis compared with when reared with only conspecifics. Egg survivorship declined with increased storage time, increased temperature, and decreased humidity; > 55% of eggs hatched following 24-wk storage at 11 degrees C with relative humidities > 78%. In host suitability tests, parasitic theronts of L. clarki consistently attacked Ae. albopictus larvae at rates significantly lower than Ae. sierrensis. L. clarki that successfully invaded Ae. albopictus larvae failed to multiply and kill their hosts; thus, Ae. albopictus is not a suitable host for L. clarki. The protracted drying of most tree holes and low water temperatures during the rainy season will hinder but not preclude establishment of Ae. albopictus in California.

Acclimatization↗

Fleas (Siphonaptera) infesting giant kangaroo rats (Dipodomys ingens) on the Elkhorn and Carrizo Plains, San Luis Obispo County, California.

The giant kangaroo rat, Dipodomys ingens (Merriam), has a limited distribution in the San Joaquin Valley, CA. Because of reductions in its geographic range, largely resulting from humans, the species was listed as an endangered species in 1980 by the California Fish and Game Commission. As part of a study of the community ecology of southern California endangered species, including D. ingens, we were able to make flea collections from the rats when they were trapped and marked for population studies. All but one of the fleas collected from the D. ingens in this study were Hoplopsyllus anomalus, a flea normally associated with ground squirrels (Sciuridae). It has been suggested that giant kangaroo rats fill the ground squirrel niche within their range. Our data indicate that this role includes a normal association with Hoplopsyllus anomalus.

Animals↗

Ixodes (Ixodes) jellisoni and I. (I.) neotomae (Acari:Ixodidae): descriptions of the immature stages from California.

Nymphal and larval stages of Ixodes (Ixodes) jellisoni Cooley & Kohls and I. (I.) neotomae Cooley are described for the first time. These 2 tick species occur only in the western United States, predominantly in California. The primary host for I. jellisoni is the California kangaroo rat, Dipodomys californicus (Merriam); that for I. neotomae is the dusky-footed woodrat, Neotoma fuscipes Baird. The etiologic agent of Lyme disease Borrelia burgdorferi Johnson, Schmidt, Hyde, Steigerwalt & Brenner has recently been isolated from both tick species, and I. neotomae was proven a competent enzootic vector of the Lyme disease spirochete.

Animals↗