Table 2.

Interface problems from usability analysis.

Category and number			Usability problem	Page location	Times occurred, n	Users encountering the problem, n (%)
Navigation problems
	1	There is no search bar.		Home	15	12 (100)
	2	The information underneath the homepage is not apparent to users.		Home	8	5 (42)
	3	Links to other websites open on the same page. Difficult to navigate back to main page.		Home	6	3 (25)
	4	The go to top icons at the bottom of the pages are not immediately visible.		Several	5	2 (17)
	5	The sexual response cycle diagram does not fit in the screen for a whole view.		Mechanism	6	3 (25)
	6	In-text references are not directly linked to the reference list. Users have to scroll up and down in search of references.		Several	5	5 (42)
	7	Treatment pop-ups are too small. Not convenient to users.		Treatment	9	6 (50)
	8	Not enough hyperlinks and hypertext to redirect users to different but related pages.		Several	7	5 (42)
Comprehension of graphics and text
	9	Mechanism section not clearly understood.		Home	14	12 (100)
	10	The slider affordance on the diagram showing signs of endometriosis portrays a click function rather than a slider.		Endometriosis	6	8 (67)
	11	Users did not understand the term dyspareunia.		Pain types	5	8 (67)
	12	Not enough affordances to prompt users to click on diagrams and text.		Several	8	6 (50)
	13	Too much content in treatment options and mechanisms.		Treatment	4	3 (25)
System response
	14	The link to entry pain does not respond.		Pain types	9	7 (58)
	15	Pages load quite slowly. Takes an average of 8-10 seconds.		Several	8	7 (58)
	16	Meaning on labels not immediately apparent to users.		Several	5	4 (33)
Information content
	17	Too much text in treatment pop-up.		Treatment	6	3 (25)
	18	Endometriosis is not explained on the homepage.		Home	3	3 (25)
	19	Not enough content on symptoms except the description of sexual pain.		Symptoms	2	2 (17)
	20	Content on treatment pop-ups is too cluttered.		Treatment	5	4 (33)
	21	Patient perspectives or voices are lacking on the website. It is medically oriented.		Several	3	4 (33)
Mismatch between the system and users’ expectations
	22	Images are too cheerful to portray feelings of pain.		Symptoms	4	5 (42)
	23	Some bolded text looked like hypertext but was not responsive when users clicked on it.		Mechanisms	4	4 (33)
	24	Clicking on psychological aspects of sexual pain takes the user to the Symptoms page.		Treatment	3	3 (25)
	25	Clicking on learn more about how the nervous system and low arousal contribute to painful sex takes the user to the Symptoms page.		Treatment	12	11 (92)
	26	Clicking on pain types takes the user to the Symptoms page.		Pain types	5	4 (33)
	27	Users think anticipation of pain cycle is located in pain types.		Home	2	2 (17)
	28	The information underneath each section is not apparent until the section is opened.		Home	6	4 (33)
	29	Links to treatment options are currently limited to only the image and not the entire box where the image is located.		Treatment	11	9 (75)
	30	The website is 1-sided in favor of female partners.		Several	5	5 (42)