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PMC:7780429 / 28766-29601 JSONTXT

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LitCovid-PD-HP

Id Subject Object Predicate Lexical cue hp_id
T146 367-375 Phenotype denotes headache http://purl.obolibrary.org/obo/HP_0002315
T147 497-505 Phenotype denotes headache http://purl.obolibrary.org/obo/HP_0002315
T148 680-688 Phenotype denotes headache http://purl.obolibrary.org/obo/HP_0002315
T149 698-709 Phenotype denotes dehydration http://purl.obolibrary.org/obo/HP_0001944

LitCovid-PubTator

Id Subject Object Predicate Lexical cue tao:has_database_id
442 367-375 Disease denotes headache MESH:D006261
443 497-505 Disease denotes headache MESH:D006261
444 680-688 Disease denotes headache MESH:D006261
445 698-709 Disease denotes dehydration MESH:D003681

LitCovid-sentences

Id Subject Object Predicate Lexical cue
T229 0-138 Sentence denotes Our study has some limitations that should be noted: the sample is one of convenience and there has been no previous probability sampling.
T230 139-204 Sentence denotes We could not include or under-represent some professional groups.
T231 205-305 Sentence denotes The study is cross-sectional, which helps us to formulate hypotheses, but we cannot prove causality.
T232 306-565 Sentence denotes We have not taken into account the temporal evolution of the headache in the health professionals who present it, nor have we taken into account other external factors that may influence the headache, such as the exact conditions of the site and type of work.
T233 566-835 Sentence denotes The last limitation is that we have not considered other confounding variables that could potentially condition a headache, such as dehydration due to the continued use of full PPE in a hot environment or lifestyle, or diet changes derived from stress or lack of sleep.