Table 3.

Six categories corresponding to their flagging reasons

	Flagging Reason	Suspected Symptoms
Category 1	Variant 1 > μ + t × δ	Scleritis, Subconjunctival Hemorrhage, Corneal Ulcer, Extraocular Muscle Entrapment (Inf Rectus), Muddy Brown Sclera, Periorbital Cellulitis, Periorbital Echymosis
Category 2	Variant 2 > μ + t × δ	Icterus
Category 3	Variant 3 < μ + t × δ	Cyanosis
Category 4	Variant 4 > μ + t × δ or Variant 4 > μ - t × δ	Central CN 7 Palsy, Cervical Adenopathy, Parotitis, Peripheral CN7 Palsy, Submandibular Abscess
Category 5	Variant 5 > μ + t × δ or Variant 5 > μ - t × δ	Central CN 7 Palsy, Peripheral CN7 Palsy, Extraocular Muscle Entrapment (Inf Rectus), Horner’s Syndrome, Periorbital Cellulitis, Periorbital Echymosis
Category 6	Variant 6 > μ + t × δ	Acnes, Hematoma of the Scalp with Cellulitis, Zoster and Cellulitis

Each flagged outlier was classified into one of the six categories according to its reporting variant. Although most of the categories contain more than one suspected symptoms, the classified category helps to narrow down the possible medical reasons of the anomaly detection