| Number of visits | Visit length |
| a) None | a) 0-15 minutes |
| b) One to three times | b) 15-30 minutes |
| c) Three to five times | c) 30-45 minutes |
| d) Greater then five times | d) Greater then 45 minutes |
| Number of visits | Visit length |
| a) None | a) 0-15 minutes |
| b) One to three times | b) 15-30 minutes |
| c) Three to five times | c) 30-45 minutes |
| d) Greater then five times | d) Greater then 45 minutes |