Cumulative Incidence of Selected Domains for Queries on Google U.K.
| NHS Direct Online Queries, No. (%) | MedlinePlus Queries, No. (%) | ||||||||
| Domains | First Place | Top 5 | Top 10 | Top 20 | Domains | First Place | Top 5 | Top 10 | Top 20 |
| NHS Direct Online | 212 (22.0) | 660 (68.3) | 800 (82.8) | 848 (87.8) | English Wikipedia | 640 (37.1) | 1096 (63.5) | 1222 (70.8) | 1300 (75.3) |
| English Wikipedia | 293 (30.3) | 567 (58.7) | 657 (68.0) | 708 (73.3) | .gov domains∗ | 254 (14.7) | 493 (28.6) | 681 (39.5) | 854 (49.5) |
| BBC∗ | 254 (26.3) | 474 (49.1) | 585 (60.6) | BBC∗ | 312 (18.1) | 610 (35.3) | 775 (44.9) | ||
| Patient.co.uk | 246 (25.5) | 427 (44.2) | 557 (57.7) | MedlinePlus | 210 (12.2) | 372 (21.6) | 522 (30.2) | 652 (37.8) | |
| NetDoctor.co.uk | 190 (19.7) | 340 (35.4) | 405 (41.9) | Patient.co.uk | 256 (14.8) | 480 (27.8) | 645 (37.4) | ||
| Medscape∗ | 95 (9.8) | 161 (16.7) | NHS Direct Online | 317 (18.4) | 425 (24.6) | 473 (27.4) | |||
| .gov domains∗ | 73 (7.6) | 128 (13.3) | NetDoctor.co.uk | 187 (10.8) | 346 (20.1) | 407 (23.6) | |||
| MedlinePlus | 73 (7.6) | 126 (13.0) | Medscape∗ | 151 (8.75) | 282 (16.3) | 412 (23.9) | |||
| eMedicine.com | 56 (5.8) | 89 (9.2) | eMedicine.com | 105 (6.08) | 186 (10.8) | 265 (15.4) | |||
| Medicinenet.com | 147 (8.52) | 261 (15.1) | |||||||
| KidsHealth.org | 102 (5.91) | 149 (8.63) | |||||||
| Mayo Clinic∗ | 97 (5.6) | 184 (10.7) | |||||||
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NHS = National Health Service; BBC = British Broadcasting Company.
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This table shows cumulative incidences of selected domains for NHS Direct Online and MedlinePlus queries on Google UK. Bold text denotes that these numbers are significantly (P < 0.05) larger than the numbers below in the same column. Only numbers with percentages ≥ 5% are shown; domains not reaching this threshold for the first ten results on Google UK are not tabulated (for the full results on all search engines and domains, see Tables 3–6, available as an online data supplement at http://www.jamia.org). Domains are sorted in descending order according to Top 10 incidence for MedlinePlus queries.
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↵∗ =These are domain clusters, see “Methods” under “Websites” for details. BBC = British Broadcasting Company.
