Table 1.

Experimental computing time (seconds) for identification of exceptional responders using addition across records of all included patients

Number of patients	Lambda (security measure in bits)	Multipli-cation depth	Time to encrypt vector for one variable	Time to add encrypted vector for all patients	Addition time multiplied by 100 variables per analysis	Time to decrypt resultsa
1000	128	8	70.5	0.6	60	0.1
1000	256	8	142.7	1.2	120	0.2
1000	256	16	316.7	2.8	280	0.4
5000	128	8	234.2	1.8	180	0.1
5000	256	8	616.7	7.6	760	0.2
5000	256	16	1583.8	2512.2	25,120	0.8

^aThe final decryption times of the results occur only once at the end of each analysis. All times in seconds