Table 3.

Sensitivity Analyses

Analysis Method	No.	Total AECOPD	Moderate AECOPD	Severe AECOPD
Primary propensity-matched analysis (main analysis)	1,008	0.78 (0.65-0.94)	0.75 (0.61-0.92)	0.86 (0.63-1.18)
Fully adjusted unmatched sample	1,698	0.81 (0.70-0.95)	0.78 (0.65-0.94)	0.91 (0.71-1.18)
Bivariate analysis adjusting for propensity score	1,698	0.78 (0.67-0.92)	0.77 (0.63-0.93)	0.86 (0.66-1.11)
Inverse probability of the treatment weights	1,698	0.71 (0.62-0.82)	0.66 (0.56-0.78)	0.88 (0.71-1.10)

AECOPD = acute exacerbation of COPD.