Nodes Get Callback SQL In EJS

I try to get a good valu In My EJS with Node Function, in callback.

//MY FUNCTION IN CONTROLLER

`function Followersql(id_user,col,callback){ 
 var list = [];
 SQL(mysql,PARAM).query("SELECT * FROM ARD_fol WHERE "+col+"="+id_user ,function (err, recordset){
        if (err) { 
                               return callback(err+'errer');
                
                               }else{
             
                                list = recordset.length;
                
                                      }                        
                                                           });
                        return callback(list); 
    }`

//MY FUNCTION CALLBACK function callback(msg){ return msg; }

//MY EJS <td class="tbl__cell text-left" role="cell"><%= helper.Following(data_user[i].id_users); %>K</td>

but i don't receive a good data, it's always same data for all user.

Thanks a lot.

i hope to get a good callback with my SQL function.