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. Author manuscript; available in PMC: 2024 Mar 1.
Published in final edited form as: J Glaucoma. 2023 Feb 1;32(3):145–150. doi: 10.1097/IJG.0000000000002143

Table 2.

Definitions of Outcome Variables

Definition Study Procedure Medications Additional Procedures* Clinic Visits
Global Period Post Global Period Global Period Post Global Period Post Global Period
Post Global 1st year After 1 year Post Global 1 year After 1 year Post Global 1st year After 1 year
Total Direct Cost x x x x x x x x x
First Year Total Direct Cost x x x x x x
Global Period Cost x x x
Post Global Period Total Cost x x x x x x
Monthly Post Global Period Cost x x x x x x
Post Global Period 1st year Cost x x x

Medications=IOP-lowering and surgically related ophthalmic drops, such as antibiotics and anti-inflammatory agents.

*

Additional procedures are defined as unplanned surgeries for glaucoma or to address a complication related to the study procedure.