further for

16:44 Mar 11, 2018 

De nada.
Y por cierto, el original no se refiere (o no intenta decir) a "otros" cinco años sino a "durante" cinco años; "con un seguimiento de cinco años".

11:55 Mar 11, 2018 

Thank you both

15:58 Mar 10, 2018 

Como sugerido por lorena, el propio texto explicita en conclusiones;
This study was designed to compare GMCs and SRs of antiHAV antibody elicited by the inactivated vaccines Healive and Havrix as comparator vaccine for 5 y [years] post immunization, and then a suitable statistical model was used to predict the persistence of protective immunogenicity for the 2 vaccines.

11:34 Mar 10, 2018 

It's great! I have read it all, thank you again!!

01:03 Mar 10, 2018 

Take a look at this and see if my understanding is correct
https://www.tandfonline.com/doi/pdf/10.1080/21645515.2016.11...

00:59 Mar 10, 2018 

Thanks! I have only sentences, not the full text, I have only got what I wrote here so I couldnt read anything else, thank you so much!!

00:53 Mar 10, 2018 

I found something online very similar to your text and I can see that this was a study conducted in China so this seems like a bad translation. Based on a quick read it looks like what they are trying to say is:..beyond 5 years and predict persistence of... (since this is a follow-up study)