Final answer:
The unassociated risk factor related to otitis media is exposure to cigarette smoke.
Step-by-step explanation:
Otitis media, commonly known as an ear infection, can be caused by various factors. However, of the options provided, the unassociated risk factor related to otitis media is exposure to cigarette smoke. While exposure to cigarette smoke can lead to other respiratory problems, it is not directly linked to otitis media. Other common risk factors for otitis media include frequent respiratory infections, bottle-feeding instead of breastfeeding, and attendance in a daycare setting.