Table 2 Outcomes that demonstrated a significant relationship with Schlemm’s canal incision length.

From: Relationship between Schlemm’s canal incision length and the results of ab interno gonioscopy-assisted transluminal suture trabeculotomy

Outcome

 

Coefficient

95% CI lower

95% CI upper

P value (Wald test)a

IOP changeb

Amount at 6 M

-0.013

-0.024

-0.002

0.0181*

Percentage at 6 M

-0.081

-0.135

-0.028

0.0029**

IOP spikec

0.079

0.004

0.155

0.0401*

Hyphema gradec

0.042

0.017

0.068

0.0012**

Surgical success rate, criterion Ac

12 M

0.0093

0.001

0.018

0.0344*

Surgical success rate, criterion Bc

6 M

0.0105

0.001

0.020

0.0247*

 

12 M

0.0119

0.002

0.022

0.0172*

  1. Abbreviations: * p < 0.05, ** p < 0.01.
  2. aP value < 0.05 was considered significant.
  3. bMultivariate analysis was performed with a linear mixed model (LMM) to assess the association between IOP change and Schlemm’s canal incision length, in which patient ID and tonometer type (NCT, Applanation, and iCare) were used as random effects, and sex, age, surgery type, glaucoma type, Schlemm’s canal incision length, and number of antiglaucoma eye drops were used as fixed effects.
  4. cMultivariate analysis was performed with a generalized LMM to examine the relationship between the IOP spike/hyphema grade/surgical success rate and Schlemm’s canal incision length, in which patient ID and tonometer type (NCT, Applanation, and iCare) were used as random effects and sex, age, surgery type, glaucoma type, Schlemm’s canal incision length, preoperative IOP (excluded in case of surgical success), and number of antiglaucoma eyedrops (preoperative data for IOP spike/hyphema grades) were used as fixed effects.
  5. For each response variable, the regression coefficient, its 95% confidence interval (CI), and the p value (Wald test) are shown.