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. 2021 Aug 11;9(8):e28287. doi: 10.2196/28287

Table 2.

The top three association rules that our explanation ranking method produced for the second selected patient (patient 2). This patient satisfied condition 1.

Rank Association rule Confidence of the rule Commonality of the rule (n=1184), n (%)


Total, n Value, n (%)
1
  • The patient’s most recent diagnosis of asthma with acute exacerbation or status asthmaticus was from ≤110 days ago

  • AND the patient was prescribed ≥10 short-acting β-2 agonists during the past year

  • AND the patient had no outpatient visit during the past year

  • AND the patient’s first encounter related to asthma was from ≥1 year ago

  • → The patient will likely have ≥1 inpatient stay or EDa visit for asthma in the succeeding 12 months.

87 54 (62.07) 54 (4.56)
2
  • The patient was prescribed asthma medications ≥16 times during the past year

  • AND the patient’s mean respiratory rate during the past year was >16.89 breaths per minute

  • AND the patient’s most recent visit was an ED visit

  • AND the patient is a Black or an African American patient

  • AND the patient was totally allowed between 1 and 33 medication refills during the past year

  • → The patient will likely have ≥1 inpatient stay or ED visit for asthma in the succeeding 12 months.

32 18 (56.25) 18 (1.52)
3
  • The patient had between 8 and 16 asthma diagnoses during the past year

  • AND the patient’s lowest SpO2b level during the past year was between 8.0% and 94.5%

  • AND the patient’s most recent ED visit related to asthma occurred no less than 26 days ago and no more than 100 days ago

  • AND the patient is not a White patient

  • AND the patient had ≤6 encounters during the past year

  • → The patient will likely have ≥1 inpatient stay or ED visit for asthma in the succeeding 12 months.

35 18 (51.43) 18 (1.52)

aED: emergency department.

bSpO2: peripheral capillary oxygen saturation.