Our secure outsourcing scheme of Sexp is with high checkability and efficiency.
Proof: The outsourcing scheme Sexp satisfies correctness, soundness, privacy, verifiability and efficiency, which are proved as follows.
Verifiability: We can analyze the verifiability of Sexp by using the same method as described in the Theorem 1 in section 3.
Compared with  and , the weakness of our scheme Sexp is increased MM, but our scheme only requires 4 MInv (we omit other operations such as modular additions) and 2 invocations of Rand.
The percentage of men indicating that they had consented to any of the behaviours listed in the SEXP was calculated overall and for each item.
Summary of standard multiple regression analysis with SEXP as the dependent variable, RCUSS, SSE and SRI as the predictors (n = 124).