independent-test-print.nSurv.md
In gsDesign: Group Sequential Design

Test: checking for Censoring Rates

nSurv fixed-design summary (method=LachinFoulkes; target=Accrual duration)
HR=0.600 vs HR0=1.000 | alpha=0.025 (sided=1) | power=90.0%
N=172.0 subjects | D=160.7 events | T=172.2 study duration | accrual=172.0 Accrual duration | minfup=0.2 minimum follow-up | ratio=1 randomization ratio (experimental/control)

Key inputs (names preserved):
                               desc    item   value input
                    Accrual rate(s)   gamma       1     1
           Accrual rate duration(s)       R 171.997    12
             Control hazard rate(s) lambdaC   0.116 0.116
            Control dropout rate(s)     eta       0     0
       Experimental dropout rate(s)    etaE       0     0
 Event and dropout rate duration(s)       S    NULL     S

Test: checking for Control Censoring Rates

nSurv fixed-design summary (method=LachinFoulkes; target=Accrual duration)
HR=0.600 vs HR0=1.000 | alpha=0.025 (sided=1) | power=90.0%
N=362.6 subjects | D=223.3 events | T=362.8 study duration | accrual=362.6 Accrual duration | minfup=0.2 minimum follow-up | ratio=1 randomization ratio (experimental/control)

Key inputs (names preserved):
                               desc    item   value input
                    Accrual rate(s)   gamma       1     1
           Accrual rate duration(s)       R 362.589    12
             Control hazard rate(s) lambdaC   0.116 0.116
            Control dropout rate(s)     eta       0     0
       Experimental dropout rate(s)    etaE     0.2   0.2
 Event and dropout rate duration(s)       S    NULL     S

Test: checking for ratio != 1

nSurv fixed-design summary (method=LachinFoulkes; target=Accrual duration)
HR=0.600 vs HR0=1.000 | alpha=0.025 (sided=1) | power=90.0%
N=385.6 subjects | D=253.2 events | T=385.8 study duration | accrual=385.6 Accrual duration | minfup=0.2 minimum follow-up | ratio=0.8 randomization ratio (experimental/control)

Key inputs (names preserved):
                               desc    item   value input
                    Accrual rate(s)   gamma       1     1
           Accrual rate duration(s)       R 385.563    12
             Control hazard rate(s) lambdaC   0.116 0.116
            Control dropout rate(s)     eta       0     0
       Experimental dropout rate(s)    etaE     0.2   0.2
 Event and dropout rate duration(s)       S    NULL     S