Inhaled glucocorticoids in COPD: immortal time bias.
Pride
Neil B
NB
Vestbo
Jorgen
J
Soriano
Joan B
JB
Kiri
Victor A
VA
D000280:Administration, Inhalation; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage*; D015982:Bias; D005938:Glucocorticoids / Q000008:administration & dosage*; D006801:Humans; D010359:Patient Readmission / Q000706:statistics & numerical data; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy* / Q000401:mortality; D012107:Research Design / Q000592:standards*; D013256:Steroids; D016019:Survival Analysis; D013997:Time Factors; D016896:Treatment Outcome
D000893:Anti-Inflammatory Agents; D005938:Glucocorticoids; D013256:Steroids