Quality of Health Information on the Internet for Urolithiasis on the Google Search Engine

Table 2

Rates of HON-accredited websites among the search terms.

Search term	Total websites	HON+	HON−	%HON+
Renal colic	652600	72	528	12.0
Kidney stone	4977000	61	539	10.2
Ureteric stone	318580	62	538	10.3
Bladder stone	9518730	45	555	7.5
Staghorn calculus	65820	41	559	6.8
Ureteral stent	670497	42	558	7.0
Lasertripsy	19127	34	566	5.7
Extracorporeal shock wave lithotripsy	327270	60	540	10.0
Percutaneous nephrolithotomy	191010	45	555	7.5
Retrograde intrarenal surgery	142220	45	555	7.5
Litholapaxy	83850	15	585	2.5
Medical expulsive therapy	585436	33	553	5.6
Calcium calculus	1414373	51	549	8.5
Uric acid calculus	354410	52	548	8.7
Cystine calculus	145308	54	546	9.0

Note: HON+, HON-accredited; HON−, non-HON-accredited; %HON+, percentage of HON-accredited websites out of a total of 600 websites (150 per search term × 4 languages).
Only 136 websites found for the German search term, thus totalling 586 websites for four languages instead of 600.