Table 9: Characteristics of Studies Assessing Continuity of Care in Patients With COPD.

Study	Type of Study	Research Question	Population	N	Continuity With Whom/What	Primary Outcomes
Hong et al, 2010 (22) (Korea)	Cross-sectional database study	Is there an association between continuity of care and health outcomes?	Patients with COPD aged 65 to 84 years with 4 or more physician visits within previous 3 years	131,512	Measurement of continuity with the same clinic site	Hospitalizations, ED visits

Abbreviations: COPD, chronic obstructive pulmonary disease; ED, emergency department; N, number of patients.