BackgroundTo determine generic utilities for Spanish chronic obstructive pulmonary disease (COPD) patients stratified by different classifications: GOLD 2007, GOLD 2013, GesEPOC 2012 and BODEx index.MethodsMulticentre, observational, cross-sectional study. Patients were aged ≥40 years, with spirometrically confirmed COPD. Utility values were derived from EQ-5D-3 L. Means, standard deviations (SD), medians and interquartile ranges (IQR) were computed based on the different classifications. Differences in median utilities between groups were assessed by non-parametric tests.Results346 patients were included, of which 85.5% were male with a mean age of 67.9 (SD = 9.7) years and a mean duration of COPD of 7.6 (SD = 5.8) years; 80.3% were ex-smokers and the mean smoking history was 54.2 (SD = 33.2) pack-years. Median utilities (IQR) by GOLD 2007 were 0.87 (0.22) for moderate; 0.80 (0.26) for severe and 0.67 (0.42) for very-severe patients (p < 0.001 for all comparisons). Median utilities by GOLD 2013 were group A: 1.0 (0.09); group B: 0.87 (0.13); group C: 1.0 (0.16); group D: 0.74 (0.29); comparisons were statistically significant (p < 0.001) except A vs C. Median utilities by GesEPOC phenotypes were 0.84 (0.33) for non exacerbator; 0.80 (0.26) for COPD-asthma overlap; 0.71 (0.62) for exacerbator with emphysema; 0.72 (0.57) for exacerbator with chronic bronchitis (p < 0.001). Comparisons between patients with or without exacerbations and between patients with COPD-asthma overlap and exacerbator with chronic bronchitis were statistically-significant (p < 0.001). Median utilities by BODEx index were: group 0–2: 0.89 (0.20); group 3–4: 0.80 (0.27); group 5–6: 0.67 (0.29); group 7–9: 0.41 (0.31). All comparisons were significant (p < 0.001) except between groups 3–4 and 5–6.ConclusionIrrespective of the classification used utilities were associated to disease severity. Some clinical phenotypes were associated with worse utilities, probably related to a higher frequency of exacerbations. GOLD 2007 guidelines and BODEx index better discriminated patients with a worse health status than GOLD 2013 guidelines, while GOLD 2013 guidelines were better able to identify a smaller group of patients with the best health.
Background
Spain introduced 13-valent pneumococcal conjugate vaccine (PCV13) in the childhood national immunization programme (NIP) in 2015-2016 with coverage of three doses of 94.8% in 2018. We assessed the evolution of all pneumococcal, PCV13 vaccine type (VT), and experimental PCV20-VT (PCV13 + serotypes 8, 10A, 11A, 12F, 15B, 22F, 33F) hospitalized community acquired pneumonia (CAP) in adults in Spain from 2011-2018.
Materials/methods
This was a prospective, observational study of immunocompetent adults (≥18y) admitted to four Spanish hospitals with chest X-ray confirmed CAP between November 2011 and November 2018. Microbiological confirmation was obtained using the Pfizer serotype specific urinary antigen detection tests (UAD1/UAD2), BinaxNow® of urine, and conventional cultures of blood, pleural fluid, and high-quality sputum.
Results
Of 3107 adults hospitalized with CAP, 1943 were ≥65 years. Underlying conditions were present in 87% (n=2704) of the study participants. Among all patients, 895 (28.8%) had pneumococcal CAP and 439 (14.1%) had PCV13-VT CAP, decreasing from 17.9% (n=77) to 13.2% (n=68) from 2011-2012 to 2017-2018 (p=0.049). PCV20-VT CAP occurred in 243 (23.8%) of those included in 2016-2018. The most identified serotypes were 3 and 8. Serotype 3 accounted for 6.9% (n=215) of CAP cases, remaining stable during the study period, and was associated with disease severity.
Conclusions
PCV13-VT caused a substantial proportion of CAP in Spanish immunocompetent adults eight years after introduction of childhood PCV13 immunization. Improving direct PCV13 coverage of targeted adult populations could further reduce PCV13-VT burden, a benefit that could be increased further if PCV20 is licensed and implemented.
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