Table 5.

Sample comments of each of the themes.

Themes		Examples
Content
	Positive comments	“...the [highlighted] topics...active living, eating healthy, get motivated,...I feel these are all the topics that...people would be interested in.” [B5, round 2]
		“...I’m...assuming that with every reply, I’ll get something in my inbox as well, so that’s...good...[because]...after its been forwarded it’ll just send me an email and then I’ll know okay, someone’s replied and...have the answer to my question okay...that’s good.” [B4, round 2]
	Negative comments	“I would definitely use [the forum] if there was more...information and the content was more rich.” [A5, round 1]
		“...it wasn’t clear to me what criteria I was supposed to use [to rate posts]...[there] was a bit of guess work involved in there.” [A2, round 1]
	Neutral comments	“...I would make it mobile friendly, I don’t know if it’s a mobile friendly site.” [ B5, round 2]
		“Another [topic] is sleeping...Sleeping is critically important...I would find it really interesting to understand how people approach that...what they think are good rules to follow, how they're doing it...” [C1, round 3]
Navigation
	Positive comments	“It’s very clear...I think once you go through it once or twice, it [is] very simple to...follow.” [A4, round 1]
		“This is very user friendly; I don’t think navigating it is a problem...It’s fairly intuitive and easy to follow. I don’t think anyone who uses the internet regularly should have any difficulty...navigating it.” [A5, round 1]
	Negative comments	“It was a little difficult [to navigate]...I should say not very difficult because I’ve had an idea with the keyboard and I've looked at [something] similar to this...but [for] some people it may be very intimidating for them.” [B3, round 2]
		“...there’s too many pop up boxes...there’s too many steps...[for something that] could be 1 step there’s...3 steps instead...and I feel like people will get confused...” [B5, round 2]
Layout
	Positive comments	“I think [the layout is] very simple and nice; I like the simplicity, I like the use friendliness.” [A5, round 1]
		“It’s really well done, like the font and the color, and when you need to know something, it pops up where it needs to be...all of the buttons are great, when you touch them they work the first time...I think it’s an excellent website.” [C2, round 3]
	Negative comments	“[I liked least] the cumbersome aspects of the webpage, having to click on that edit button which I didn't know was an edit button in the first place, unless I roll my mouse over it...” [B1, round 2]
		“...[the layout is] a little too busy; keep it simple is the right idea.” [ A1, round 1]
General feedback
	Satisfaction with forum	“The internet is a source of a lot of useful information but can also be a source of a lot of...misinformation, so...the moderation must be there, otherwise you [end up] working against your own best interests.” [A2, round 1]
		“I think [this forum]...would come in handy [for other heart patients] ... [to] check on how they’re doing, and how other people are doing. And it’s pretty easy to use it on a computer.” [C3, round 3]
	Potential barriers	“When it comes to personal life...like health... [people] are not as open, for whatever reason...sometimes they don’t want to talk about it, they just want to leave it alone.” [ A3, round 1]
		“There [are] some people that…wouldn’t use it at all, just [because] they don’t have a computer [or] maybe they’re not going to adapt to a computer program and find it very difficult [and] intimidating.” [A4, round 1]
	Description of use	“Yeah [I would use a forum like this]. I would go in and see once you start having situations...with your health you see what other people are doing for exercising, eating healthy…” [A3, round 1]
		“It’s the time in between your [appointments] when you have all the questions [about your diagnosis or procedure]...so having something as a resource to refer to would be something good.” [B4, round 1]