Table 3.

Moderate and severe COPD exacerbation rates

COPD exacerbation rate (events/patient/year)	Baseline* (n=21)	12 months post treatment† (n=21)	12 months post treatment (excluding the treatment recovery period)‡ (n=21)	Post 12 months through 24 months§ (n=20)
All (moderate+severe)	1.19±1.60	0.99±1.46	0.75±1.32	0.88±1.91
Moderate	1.05±1.66	0.94±1.48	0.69±1.33	0.79±1.74
Severe	0.14±0.36	0.05±0.21	0.05±0.25	0.10±0.44

Values are mean±SD (number of events).

*Defined as the 12 months prior to treatment 1.

†Defined as the follow-up period from treatment 1 through 12 months after treatment 2.

‡Defined as the follow-up period from treatment 1 through 12 months after treatment 2 excluding the 30 days following either RheOx procedure.

§Defined as the follow-up period post 12 months through 24 months after treatment 2.

COPD, chronic obstructive pulmonary disease.