Wang 2011.

Methods	Study design: "clinical comparative observation" using randomization Unit of randomization: the individual (one eye per participant) Number randomized: 96 participants; 32 participants in each of three groups Unit of analysis: the individual (one eye per participant) Number analyzed: 96 participants; 32 participants in each of three groups Exclusions and losses to follow‐up: none reported Power calculation: none reported
Participants	Country: China Age (mean): 66 year (range: 38 to 76); not reported by group Gender: 60 men and 36 women; not reported by group Ethnicity: not reported Inclusion criteria: eyes with cataract complicated with glaucoma LogMAR visual acuity < 0.8, 3) IOP > 21 mmHg Exclusion criteria: not reported Equivalence of baseline characteristics: yes Diagnoses in participants: not reported
Interventions	Intervention 1: combined cataract surgery (phacoemulsification) with IOL implantation and trabeculectomy Intervention 2: cataract surgery (phacoemulsification) with IOL implantation alone Intervention 3: trabeculectomy alone Study follow‐up: 6 months
Outcomes	Primary outcome: change in IOP Secondary outcomes: visual acuity anterior chamber depth Adverse events reported: no Intervals at which outcomes assessed: 2 weeks and 6 months
Notes	Type of study: published Study period: enrolment from January 2007 to June 2010 Funding source: not reported Disclosures of interest: not reported Publication language: Chinese Subgroup analysis: not reported

IOL: intraocular lens; IOP: intraocular pressure; mmHg: millimeter of mercury.