only marginally significantp =0.062
When we repeated the main analysis in the non-missing dataset, such a correlation still existed in the whole cohort (HR: 1.38, 95% CI: 1.02–1.87, p =0.037) but only marginally significant in the nonobstructive cohort (HR: 1.70, 95% CI: 0.97–2.98, p =0.062) ( Online Table 4 ).