Table 5.
Display by other search engines on the basis of website link popularity. Values are numbers (percentages) unless stated otherwise
| Search engine | Google rank
|
No of links (Google)
|
No of links (AltaVista)
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| More popular (rank 1-100) (n=90) | Less popular (rank 101-200) (n=94) | P value | More popular (>50 links) (n=79) | Less popular (⩽50 links) (n=83) | P value | More popular (>20 links) (n=75) | Less popular (⩽20 links) (n=73) | P value | |||
| AltaVista | 15 (17) | 9 (10) | 0.153 | 20 (25) | 3 (4) | <0.001 | 21 (28) | 3 (4) | <0.001 | ||
| Yahoo | 26 (29) | 15 (16) | 0.035 | 33 (42) | 7 (8) | <0.001 | 37 (49) | 4 (6) | <0.001 | ||
| Excite | 53 (59) | 31 (33) | <0.001 | 58 (73) | 21 (25) | <0.001 | 64 (85) | 19 (26) | <0.001 | ||
| Infoseek | 38 (42) | 20 (21) | 0.002 | 45 (57) | 12 (15) | <0.001 | 47 (63) | 10 (14) | <0.001 | ||
On query with the search string “breast cancer,” AltaVista returned approximately 300 000 sites but provided links to 200, Yahoo category search returned 361, and Infoseek returned approximately 600 000 sites but provided links to 335. Excite returned approximately 60 000 results, of which 500 were evaluated.