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Fig. 3 | BMC Pulmonary Medicine

Fig. 3

From: Lysophosphatidic acid species are associated with exacerbation in chronic obstructive pulmonary disease

Fig. 3

Time to first exacerbation by baseline LPA profile. Baseline LPA profile was fitted to a Cox proportional hazards regression model adjusted for the following covariates: number of exacerbations within the last 12 months, smoking status, geographical region, baseline COPD medications, and sex. L = lowest-; M = medium-; H = highest-tertile of the respective LPA levels. P-values compared L or M to H subgroup. *p < 0.05; ns, not significant

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