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. 2015 Nov 3;100(7):976–985. doi: 10.1136/bjophthalmol-2015-307587

Table 2.

Mydriatic efficacy, the number of patients for whom the capsulorhexis was successfully performed without any additional mydriatic treatment

Mydrane group Reference group Between-group difference* (%) Non-inferiority testing†
95% CI
ITT N=272 N=283    
 N (%) of patients 267 (98.2) 267 (94.3) 3.8 −4.5% to 12.1%
 95% CI 95.8 to 99.4 91.0 to 96.7 Non-inferiority verified
mITT N=268 N=281
 N (%) of patients 265 (98.9) 266 (94.7) 4.2 −4.2% to 12.6%
 95% CI 96.8 to 99.8 91.3 to 97.0   Non-inferiority verified
PP N=254 N=234    
 N (%) of patients 251 (98.8) 222 (94.9) 3.9 −4.9% to 12.8%
 95% CI 96.6 to 99.8 91.2 to 97.3   Non-inferiority verified

The non-inferiority was verified if the lower bound of this 95% CI was at least −7.5%.

*Mydrane—reference.

†Non-inferiority was based on the exact 95% CI of the between-group difference in responder rates and tested with a non-inferiority margin of −7.5%.

ITT, intent-to-treat set of patients; mITT, modified intent-to-treat set of patients; Mydrane group, patients who received an intracameral injection of a standardised combination of tropicamide 0.02%, phenylephrine 0.31% and lidocaine 1% just after the first incision; PP, per protocol; Reference group, patients who received a standard topical regimen of one drop each, of tropicamide 0.5% and phenylephrine 10% repeated three times at 10 min intervals beginning 30 min before surgery.