Publication Information

{'id': 'https://openalex.org/W1988658961', 'doi': 'https://doi.org/10.1186/1465-9921-10-1', 'title': 'BODE index versus GOLD classification for explaining anxious and depressive symptoms in patients with COPD – a cross-sectional study', 'display_name': 'BODE index versus GOLD classification for explaining anxious and depressive symptoms in patients with COPD – a cross-sectional study', 'publication_year': 2009, 'publication_date': '2009-01-09', 'ids': {'openalex': 'https://openalex.org/W1988658961', 'doi': 'https://doi.org/10.1186/1465-9921-10-1', 'mag': '1988658961', 'pmid': 'https://pubmed.ncbi.nlm.nih.gov/19134192', 'pmcid': 'https://www.ncbi.nlm.nih.gov/pmc/articles/2626579'}, 'language': 'en', 'primary_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/1465-9921-10-1', 'pdf_url': 'https://respiratory-research.biomedcentral.com/counter/pdf/10.1186/1465-9921-10-1', 'source': {'id': 'https://openalex.org/S186153782', 'display_name': 'Respiratory Research', 'issn_l': '1465-9921', 'issn': ['1465-9921', '1465-993X'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'type': 'article', 'type_crossref': 'journal-article', 'indexed_in': ['crossref', 'doaj', 'pubmed'], 'open_access': {'is_oa': True, 'oa_status': 'gold', 'oa_url': 'https://respiratory-research.biomedcentral.com/counter/pdf/10.1186/1465-9921-10-1', 'any_repository_has_fulltext': True}, 'authorships': [{'author_position': 'first', 'author': {'id': 'https://openalex.org/A5060878701', 'display_name': 'Georg‐Christian Funk', 'orcid': 'https://orcid.org/0000-0002-2891-0271'}, 'institutions': [{'id': 'https://openalex.org/I4210139931', 'display_name': 'Otto Wagner Hospital', 'ror': 'https://ror.org/041jk5w53', 'country_code': 'AT', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210117134', 'https://openalex.org/I4210139931']}], 'countries': ['AT'], 'is_corresponding': False, 'raw_author_name': 'Georg-Christian Funk', 'raw_affiliation_strings': ['Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria'], 'affiliations': [{'raw_affiliation_string': 'Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria', 'institution_ids': ['https://openalex.org/I4210139931']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5052993599', 'display_name': 'Kathrin Kirchheiner', 'orcid': 'https://orcid.org/0000-0002-5571-2780'}, 'institutions': [{'id': 'https://openalex.org/I4210139931', 'display_name': 'Otto Wagner Hospital', 'ror': 'https://ror.org/041jk5w53', 'country_code': 'AT', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210117134', 'https://openalex.org/I4210139931']}], 'countries': ['AT'], 'is_corresponding': False, 'raw_author_name': 'Kathrin Kirchheiner', 'raw_affiliation_strings': ['Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria'], 'affiliations': [{'raw_affiliation_string': 'Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria', 'institution_ids': ['https://openalex.org/I4210139931']}]}, {'author_position': 'middle', 'author': {'id': 'https://openalex.org/A5062210485', 'display_name': 'Otto C. Burghuber', 'orcid': 'https://orcid.org/0000-0002-8419-621X'}, 'institutions': [{'id': 'https://openalex.org/I4210139931', 'display_name': 'Otto Wagner Hospital', 'ror': 'https://ror.org/041jk5w53', 'country_code': 'AT', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210117134', 'https://openalex.org/I4210139931']}], 'countries': ['AT'], 'is_corresponding': False, 'raw_author_name': 'Otto Chris Burghuber', 'raw_affiliation_strings': ['Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria'], 'affiliations': [{'raw_affiliation_string': 'Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria', 'institution_ids': ['https://openalex.org/I4210139931']}]}, {'author_position': 'last', 'author': {'id': 'https://openalex.org/A5069785625', 'display_name': 'Sylvia Hartl', 'orcid': 'https://orcid.org/0000-0002-0734-0070'}, 'institutions': [{'id': 'https://openalex.org/I4210139931', 'display_name': 'Otto Wagner Hospital', 'ror': 'https://ror.org/041jk5w53', 'country_code': 'AT', 'type': 'healthcare', 'lineage': ['https://openalex.org/I4210117134', 'https://openalex.org/I4210139931']}], 'countries': ['AT'], 'is_corresponding': False, 'raw_author_name': 'Sylvia Hartl', 'raw_affiliation_strings': ['Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria'], 'affiliations': [{'raw_affiliation_string': 'Department of Respiratory and Critical Care Medicine and Ludwig Boltzmann, Institute for Chronic Obstructive Pulmonary Disease, Otto Wagner Hospital, Vienna, Austria', 'institution_ids': ['https://openalex.org/I4210139931']}]}], 'institution_assertions': [], 'countries_distinct_count': 1, 'institutions_distinct_count': 1, 'corresponding_author_ids': [], 'corresponding_institution_ids': [], 'apc_list': {'value': 1990, 'currency': 'GBP', 'value_usd': 2440, 'provenance': 'doaj'}, 'apc_paid': {'value': 1990, 'currency': 'GBP', 'value_usd': 2440, 'provenance': 'doaj'}, 'fwci': 11.171, 'has_fulltext': True, 'fulltext_origin': 'pdf', 'cited_by_count': 166, 'citation_normalized_percentile': {'value': 0.999964, 'is_in_top_1_percent': True, 'is_in_top_10_percent': True}, 'cited_by_percentile_year': {'min': 98, 'max': 99}, 'biblio': {'volume': '10', 'issue': '1', 'first_page': None, 'last_page': None}, 'is_retracted': False, 'is_paratext': False, 'primary_topic': {'id': 'https://openalex.org/T10143', 'display_name': 'Chronic Obstructive Pulmonary Disease (COPD) Research', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2740', 'display_name': 'Pulmonary and Respiratory Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, 'topics': [{'id': 'https://openalex.org/T10143', 'display_name': 'Chronic Obstructive Pulmonary Disease (COPD) Research', 'score': 1.0, 'subfield': {'id': 'https://openalex.org/subfields/2740', 'display_name': 'Pulmonary and Respiratory Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10051', 'display_name': 'Asthma and respiratory diseases', 'score': 0.9821, 'subfield': {'id': 'https://openalex.org/subfields/2737', 'display_name': 'Physiology'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}, {'id': 'https://openalex.org/T10322', 'display_name': 'Respiratory Support and Mechanisms', 'score': 0.9736, 'subfield': {'id': 'https://openalex.org/subfields/2740', 'display_name': 'Pulmonary and Respiratory Medicine'}, 'field': {'id': 'https://openalex.org/fields/27', 'display_name': 'Medicine'}, 'domain': {'id': 'https://openalex.org/domains/4', 'display_name': 'Health Sciences'}}], 'keywords': [{'id': 'https://openalex.org/keywords/bode-index', 'display_name': 'BODE index', 'score': 0.9577698}, {'id': 'https://openalex.org/keywords/depression', 'display_name': 'Depression', 'score': 0.59223646}, {'id': 'https://openalex.org/keywords/cross-sectional-study', 'display_name': 'Cross-sectional study', 'score': 0.4274196}], 'concepts': [{'id': 'https://openalex.org/C2777168814', 'wikidata': 'https://www.wikidata.org/wiki/Q16246543', 'display_name': 'BODE index', 'level': 4, 'score': 0.9577698}, {'id': 'https://openalex.org/C2776780178', 'wikidata': 'https://www.wikidata.org/wiki/Q199804', 'display_name': 'COPD', 'level': 2, 'score': 0.6805543}, {'id': 'https://openalex.org/C558461103', 'wikidata': 'https://www.wikidata.org/wiki/Q154430', 'display_name': 'Anxiety', 'level': 2, 'score': 0.66286635}, {'id': 'https://openalex.org/C2776867660', 'wikidata': 'https://www.wikidata.org/wiki/Q1814941', 'display_name': 'Depression (economics)', 'level': 2, 'score': 0.59223646}, {'id': 'https://openalex.org/C71924100', 'wikidata': 'https://www.wikidata.org/wiki/Q11190', 'display_name': 'Medicine', 'level': 0, 'score': 0.574516}, {'id': 'https://openalex.org/C2778739829', 'wikidata': 'https://www.wikidata.org/wiki/Q17027611', 'display_name': 'Hospital Anxiety and Depression Scale', 'level': 3, 'score': 0.55325025}, {'id': 'https://openalex.org/C142052008', 'wikidata': 'https://www.wikidata.org/wiki/Q954027', 'display_name': 'Cross-sectional study', 'level': 2, 'score': 0.4274196}, {'id': 'https://openalex.org/C126322002', 'wikidata': 'https://www.wikidata.org/wiki/Q11180', 'display_name': 'Internal medicine', 'level': 1, 'score': 0.39753383}, {'id': 'https://openalex.org/C70410870', 'wikidata': 'https://www.wikidata.org/wiki/Q199906', 'display_name': 'Clinical psychology', 'level': 1, 'score': 0.3754998}, {'id': 'https://openalex.org/C1862650', 'wikidata': 'https://www.wikidata.org/wiki/Q186005', 'display_name': 'Physical therapy', 'level': 1, 'score': 0.3572907}, {'id': 'https://openalex.org/C15744967', 'wikidata': 'https://www.wikidata.org/wiki/Q9418', 'display_name': 'Psychology', 'level': 0, 'score': 0.32108048}, {'id': 'https://openalex.org/C118552586', 'wikidata': 'https://www.wikidata.org/wiki/Q7867', 'display_name': 'Psychiatry', 'level': 1, 'score': 0.29691523}, {'id': 'https://openalex.org/C2780779891', 'wikidata': 'https://www.wikidata.org/wiki/Q3455927', 'display_name': 'Pulmonary rehabilitation', 'level': 3, 'score': 0.08249563}, {'id': 'https://openalex.org/C142724271', 'wikidata': 'https://www.wikidata.org/wiki/Q7208', 'display_name': 'Pathology', 'level': 1, 'score': 0.066018134}, {'id': 'https://openalex.org/C162324750', 'wikidata': 'https://www.wikidata.org/wiki/Q8134', 'display_name': 'Economics', 'level': 0, 'score': 0.0}, {'id': 'https://openalex.org/C139719470', 'wikidata': 'https://www.wikidata.org/wiki/Q39680', 'display_name': 'Macroeconomics', 'level': 1, 'score': 0.0}], 'mesh': [{'descriptor_ui': 'D001007', 'descriptor_name': 'Anxiety', 'qualifier_ui': 'Q000453', 'qualifier_name': 'epidemiology', 'is_major_topic': True}, {'descriptor_ui': 'D003863', 'descriptor_name': 'Depression', 'qualifier_ui': 'Q000453', 'qualifier_name': 'epidemiology', 'is_major_topic': True}, {'descriptor_ui': 'D011581', 'descriptor_name': 'Psychological Tests', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': True}, {'descriptor_ui': 'D029424', 'descriptor_name': 'Pulmonary Disease, Chronic Obstructive', 'qualifier_ui': 'Q000145', 'qualifier_name': 'classification', 'is_major_topic': True}, {'descriptor_ui': 'D029424', 'descriptor_name': 'Pulmonary Disease, Chronic Obstructive', 'qualifier_ui': 'Q000523', 'qualifier_name': 'psychology', 'is_major_topic': True}, {'descriptor_ui': 'D000368', 'descriptor_name': 'Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D001007', 'descriptor_name': 'Anxiety', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003430', 'descriptor_name': 'Cross-Sectional Studies', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D003863', 'descriptor_name': 'Depression', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005260', 'descriptor_name': 'Female', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D005541', 'descriptor_name': 'Forced Expiratory Volume', 'qualifier_ui': 'Q000502', 'qualifier_name': 'physiology', 'is_major_topic': False}, {'descriptor_ui': 'D005541', 'descriptor_name': 'Forced Expiratory Volume', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006306', 'descriptor_name': 'Health Surveys', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D006801', 'descriptor_name': 'Humans', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D016014', 'descriptor_name': 'Linear Models', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008297', 'descriptor_name': 'Male', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D008875', 'descriptor_name': 'Middle Aged', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D015995', 'descriptor_name': 'Prevalence', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D011446', 'descriptor_name': 'Prospective Studies', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D029424', 'descriptor_name': 'Pulmonary Disease, Chronic Obstructive', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D029424', 'descriptor_name': 'Pulmonary Disease, Chronic Obstructive', 'qualifier_ui': 'Q000503', 'qualifier_name': 'physiopathology', 'is_major_topic': False}, {'descriptor_ui': 'D012307', 'descriptor_name': 'Risk Factors', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}, {'descriptor_ui': 'D012720', 'descriptor_name': 'Severity of Illness Index', 'qualifier_ui': '', 'qualifier_name': None, 'is_major_topic': False}], 'locations_count': 5, 'locations': [{'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/1465-9921-10-1', 'pdf_url': 'https://respiratory-research.biomedcentral.com/counter/pdf/10.1186/1465-9921-10-1', 'source': {'id': 'https://openalex.org/S186153782', 'display_name': 'Respiratory Research', 'issn_l': '1465-9921', 'issn': ['1465-9921', '1465-993X'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://doaj.org/article/171d1737e0d04de9ba7f117fe3d80ead', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306401280', 'display_name': 'DOAJ (DOAJ: Directory of Open Access Journals)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': None, 'host_organization_name': None, 'host_organization_lineage': [], 'host_organization_lineage_names': [], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}, {'is_oa': True, 'landing_page_url': 'https://europepmc.org/articles/pmc2626579', 'pdf_url': 'https://europepmc.org/articles/pmc2626579?pdf=render', 'source': {'id': 'https://openalex.org/S4306400806', 'display_name': 'Europe PMC (PubMed Central)', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1303153112', 'host_organization_name': 'European Bioinformatics Institute', 'host_organization_lineage': ['https://openalex.org/I1303153112'], 'host_organization_lineage_names': ['European Bioinformatics Institute'], 'type': 'repository'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': True, 'landing_page_url': 'https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2626579', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S2764455111', 'display_name': 'PubMed Central', 'issn_l': None, 'issn': None, 'is_oa': True, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, {'is_oa': False, 'landing_page_url': 'https://pubmed.ncbi.nlm.nih.gov/19134192', 'pdf_url': None, 'source': {'id': 'https://openalex.org/S4306525036', 'display_name': 'PubMed', 'issn_l': None, 'issn': None, 'is_oa': False, 'is_in_doaj': False, 'is_core': False, 'host_organization': 'https://openalex.org/I1299303238', 'host_organization_name': 'National Institutes of Health', 'host_organization_lineage': ['https://openalex.org/I1299303238'], 'host_organization_lineage_names': ['National Institutes of Health'], 'type': 'repository'}, 'license': None, 'license_id': None, 'version': None, 'is_accepted': False, 'is_published': False}], 'best_oa_location': {'is_oa': True, 'landing_page_url': 'https://doi.org/10.1186/1465-9921-10-1', 'pdf_url': 'https://respiratory-research.biomedcentral.com/counter/pdf/10.1186/1465-9921-10-1', 'source': {'id': 'https://openalex.org/S186153782', 'display_name': 'Respiratory Research', 'issn_l': '1465-9921', 'issn': ['1465-9921', '1465-993X'], 'is_oa': True, 'is_in_doaj': True, 'is_core': True, 'host_organization': 'https://openalex.org/P4310320256', 'host_organization_name': 'BioMed Central', 'host_organization_lineage': ['https://openalex.org/P4310319965', 'https://openalex.org/P4310320256'], 'host_organization_lineage_names': ['Springer Nature', 'BioMed Central'], 'type': 'journal'}, 'license': 'cc-by', 'license_id': 'https://openalex.org/licenses/cc-by', 'version': 'publishedVersion', 'is_accepted': True, 'is_published': True}, 'sustainable_development_goals': [{'id': 'https://metadata.un.org/sdg/3', 'score': 0.64, 'display_name': 'Good health and well-being'}], 'grants': [], 'datasets': [], 'versions': [], 'referenced_works_count': 41, 'referenced_works': ['https://openalex.org/W1845447069', 'https://openalex.org/W1971286972', 'https://openalex.org/W1981602900', 'https://openalex.org/W1988226846', 'https://openalex.org/W1989011548', 'https://openalex.org/W2002057781', 'https://openalex.org/W2003791842', 'https://openalex.org/W2022491817', 'https://openalex.org/W2035443660', 'https://openalex.org/W2037026090', 'https://openalex.org/W2039812123', 'https://openalex.org/W2063341153', 'https://openalex.org/W2071367606', 'https://openalex.org/W2082290270', 'https://openalex.org/W2083656511', 'https://openalex.org/W2105527054', 'https://openalex.org/W2108888464', 'https://openalex.org/W2114916768', 'https://openalex.org/W2121042583', 'https://openalex.org/W2123606343', 'https://openalex.org/W2124386100', 'https://openalex.org/W2125078269', 'https://openalex.org/W2127951128', 'https://openalex.org/W2132398701', 'https://openalex.org/W2132965853', 'https://openalex.org/W2133284170', 'https://openalex.org/W2136658107', 'https://openalex.org/W2138312725', 'https://openalex.org/W2139347600', 'https://openalex.org/W2139415488', 'https://openalex.org/W2148148003', 'https://openalex.org/W2149297476', 'https://openalex.org/W2160585439', 'https://openalex.org/W2166281097', 'https://openalex.org/W2166432084', 'https://openalex.org/W2220894439', 'https://openalex.org/W2266909492', 'https://openalex.org/W3041235332', 'https://openalex.org/W310671784', 'https://openalex.org/W4245666729', 'https://openalex.org/W4298192809'], 'related_works': ['https://openalex.org/W4324354973', 'https://openalex.org/W4226443180', 'https://openalex.org/W4206387907', 'https://openalex.org/W3030292999', 'https://openalex.org/W2905663859', 'https://openalex.org/W2405168949', 'https://openalex.org/W2367712971', 'https://openalex.org/W2187701576', 'https://openalex.org/W2057058739', 'https://openalex.org/W1880804108'], 'abstract_inverted_index': {'Anxiety': [0], 'and': [1, 5, 11, 28, 64, 67, 119, 127, 134, 139, 168, 181, 197, 212], 'depression': [2, 120], 'are': [3, 77], 'common': [4], 'treatable': [6], 'risk': [7], 'factors': [8], 'for': [9, 61, 178, 209], 're-hospitalisation': [10], 'death': [12], 'in': [13, 95, 215, 228], 'patients': [14, 98], 'with': [15, 79, 99, 148, 154, 164], 'COPD.': [16, 100, 233], 'The': [17, 30, 41, 116, 142, 158, 171], 'degree': [18], 'of': [19, 37, 43, 73, 83, 112, 132, 144, 160, 221, 232], 'lung': [20], 'function': [21], 'impairment': [22], 'does': [23], 'not': [24, 153], 'sufficiently': [25], 'explain': [26], 'anxiety': [27, 118], 'depression.': [29], 'BODE': [31, 53, 75, 114, 150, 169, 172, 201], 'index': [32, 54, 76, 173, 202], 'allows': [33], 'a': [34, 226], 'functional': [35], 'classification': [36, 60, 105, 208, 230], 'COPD': [38, 216], 'beyond': [39], 'FEV1.': [40], 'aim': [42], 'this': [44], 'cross-sectional': [45], 'study': [46], 'was': [47, 85, 106, 122, 137, 174], '(1)': [48], 'to': [49, 57, 69, 88, 124, 176, 205], 'test': [50], 'whether': [51], 'the': [52, 58, 74, 89, 110, 113, 206, 222], 'is': [55, 203], 'superior': [56, 175, 204], 'GOLD': [59, 90, 156, 167, 207], 'explaining': [62, 179, 210], 'anxious': [63, 126, 133, 145, 180, 211], 'depressive': [65, 128, 135, 161, 182, 213], 'symptoms;': [66], '(2)': [68], 'assess': [70, 125], 'which': [71], 'components': [72], 'associated': [78], 'these': [80], 'psychological': [81, 219], 'aspects': [82], 'COPD.COPD': [84], 'classified': [86], 'according': [87], 'stages': [91, 151], 'based': [92, 108], 'on': [93, 109], 'FEV(1%predicted)': [94, 177], '122': [96], 'stable': [97], 'An': [101], 'additional': [102], 'four': [103], 'stage': [104], 'constructed': [107], 'quartiles': [111], 'index.': [115], 'hospital': [117], 'scale': [121], 'used': [123], 'symptoms.The': [129], 'overall': [130], 'prevalence': [131, 143, 159], 'symptoms': [136, 146, 162, 185, 191, 214], '49%': [138], '52%,': [140], 'respectively.': [141], 'increased': [147, 163], 'increasing': [149, 155, 166], 'but': [152], 'stages.': [157, 170], 'both': [165, 195], 'symptoms.': [183], 'Anxious': [184], 'were': [186, 192], 'explained': [187, 193], 'by': [188, 194], 'dyspnoea.': [189], 'Depressive': [190], 'dyspnoea': [196], 'reduced': [198], 'exercise': [199], 'capacity.The': [200], 'patients.': [217], 'These': [218], 'consequences': [220], 'disease': [223], 'may': [224], 'play': [225], 'role': [227], 'future': [229], 'systems': [231]}, 'cited_by_api_url': 'https://api.openalex.org/works?filter=cites:W1988658961', 'counts_by_year': [{'year': 2024, 'cited_by_count': 4}, {'year': 2023, 'cited_by_count': 11}, {'year': 2022, 'cited_by_count': 4}, {'year': 2021, 'cited_by_count': 6}, {'year': 2020, 'cited_by_count': 17}, {'year': 2019, 'cited_by_count': 8}, {'year': 2018, 'cited_by_count': 9}, {'year': 2017, 'cited_by_count': 6}, {'year': 2016, 'cited_by_count': 18}, {'year': 2015, 'cited_by_count': 9}, {'year': 2014, 'cited_by_count': 16}, {'year': 2013, 'cited_by_count': 13}, {'year': 2012, 'cited_by_count': 13}], 'updated_date': '2024-12-29T15:04:27.505863', 'created_date': '2016-06-24'}