check_box

I am sure this is a trivial problem for a rails guru!

all I want to do is display an appropriately cheched check_box in a table, so:

instead of <% for t in @patient.histories%>

  <tr>     <td><%= t.ihd %></td>        </tr> <%end%>

I want something like:

<% for t in @patient.histories%>

  <tr>   <td><%=check_box_tag"diabetes", t.ihd %></td>        </tr> <%end%>

(hope that makes sense!) I have tried many permutations of the above and I can't make it work! All ideas gratefully recieved!