Incidence rhymes with:
precedence, confidence, decadence, evidence, precedence, providence, self-confidence, abundance, accordance, ascendance, attendance, avoidance, cadence, coincidence, confidence, correspondence, credence, decadence, dependence, evidence, guidance, impedance, imprudence, independence, interdependence, jurisprudence, kloberdanz, overabundance, overconfidence, overdependence, precedence, providence, prudence, residence, riddance, self-confidence, subsidence, transcendence
Incidence sounds like:
immunizations, incidences, inciting, ingesting, injecting, injections, insistence, insisting, instance, instances, instituting, institution's, institutions, institutions'