You could also use CSS pseudo elements to pick and display your labels from all your checkbox's value attributes (respectively).
Edit: This will only work with webkit and blink based browsers (Chrome(ium), Safari, Opera....) and thus most mobile browsers. No Firefox or IE support here.
This may only be useful when embedding webkit/blink onto your apps.
<input type="checkbox" value="My checkbox label value" />
<style>
[type=checkbox]:after {
content: attr(value);
margin: -3px 15px;
vertical-align: top;
white-space:nowrap;
display: inline-block;
}
</style>
All pseudo element labels will be clickable.