Long- and short-term frequent attenders' perceptions of patient-centredness in Finnish primary healthcare: A cross-sectional survey and the equivalence of the factor structure of the 36-item patient-centred primary care instrument.

AIM: The study aimed to compare long- and short-term frequent attenders' (FAs) perceptions of patient-centredness and to assess the equivalence of the factor structure of patient-centred primary care (PCPC) instrument for long- and short-term FAs. METHODS: A cross-sectional survey of long-term (n = 234) and short-term (n = 261) FAs within the primary healthcare of one city in Finland. The data collected in January-July 2020 via 'the 36-item PCPC instrument' were analysed using Pearson's chi-squared test, Mann-Whitney U-test, Cronbach's alpha, and multigroup confirmatory factor analysis (MGCFA). RESULTS: Long-term FAs had worse perceptions of patient-centredness than short-term FAs across all subscales: patients' preferences, physical comfort, coordination of care, continuity and transition, emotional support, access to care, information and education, and family and friends. The MGCFA indicated a good fit for the predicted eight-factor model. CONCLUSIONS: Long-term FAs' care needs are currently not being met, indicating the need for considering how the way healthcare services are arranged and care is provided affects prolonged and high care needs. Various dimensions of patient-centredness need to be addressed when developing not only FAs' care but also wider service paths. A distinction should be made between long- and short-term frequent attendance when identifying and addressing FAs' service needs.

Color stability of thermochromic pigment in maxillofacial silicone

PURPOSE: Maxillofacial silicone elastomer is usually colored intrinsically with color pigments to match skin colors. The purpose of this study was to investigate the color stability of a maxillofacial silicone elastomer, colored with a thermochromic, color changing pigment. MATERIALS AND METHODS: Disc-shaped maxillofacial silicone specimens were prepared and divided into 3 groups: a conventionally colored control group, one group additionally colored with 0.2 wt% thermochromic pigment , and one group with 0.6 wt% thermochromic pigment. Half of the surface of each specimen was covered with an aluminium foil. All of the specimens were exposed to UV radiation in 6 hour cycles over 46 days. In between the UV exposures, half of the specimens were stored in darkness, at room temperature, and the other half was stored in an incubator, at a humidity of 97% and a temperature of +37degrees C. Color measurements were made with a spectrophotometer and registered according to the CIELAB L*a*b* color model system. The changes in L*, a* and b* values during artificial aging were statistically analyzed by using paired samples t-test and repeated measures ANOVA. P-values <.05 were considered as statistically significant. RESULTS: The UV exposure resulted in visually noticeable and statistically significant color changes in the L*, a* and b* values in both of the test groups containing thermochromic pigment. Storage in the incubator lead to statistically significant color changes in the a* and b* values of the specimens containing thermochromic pigment, compared to those stored at room temperature. CONCLUSION: The specimens containing thermochromic pigment were very sensitive to UV radiation, and the thermochromic pigment is not suitable, as such, to be used in maxillofacial prostheses.