Fig. 4From: Relationship between gut microbiota and lung function decline in patients with chronic obstructive pulmonary disease: a 1-year follow-up studySTAMP analysis at the genus levels showed significant differences in mean proportion between different COPD groups. The statistical analysis was tested by Welch’s t-test. A: Control-S1 vs. Control-S2; B: Decline-S1 vs. Decline-S2; C: Control-S2 vs. Decline-S2Back to article page