I need our advice regarding bootstrapping of binary logistic regression.

I have following questions:

- the sample size is 305 people. How many random samples are most appropriate? Some say 1000 and some 2000, but what is thelogic behind choosing the sample size?

- How can i get/is it possible to get bootsrapped OR, Hosmer and lemeshow's p value, Nagelkerke's R square and predictive probabilities for building the ROCs?

- What values shoud i repport in the paper?

I run analyses in SPSS.

Thank you for the answer.

Best regards.