Table 4.

Distribution of medication intent categories with examples from patient and provider messages.

Message type and medication intent category			Messages, n (%)		Example messagea		Sublanguage featuresa
Patient (n=282)
	Medication request	134 (47.5)		“Yes I am. Sent in a new prescription for the 10 mg when we changed the dosage because I needed to refill my pills.”		need, taking, refill, dose, script
	Medication taking	79 (28.0)		“Sorry Lisinopril was stopped HCTZb 25 mg added / daily Metoprolol decreased to 50 mg / daily 25 mg started today”		taking, dose_freqc, doseamtd, dine_dose, started, stopped, dose_treatment
	Medication location	54 (19.1)		“You sent it to apothecary at 3737 market st?”		apothecary_market_st, pcamf_pharmacy, pahg_pharmacy, huph_pharmacy, cvs, ravdini
	Medication question	15 (5.3)		“So at what point would / should I start 5 mg of amlodipine or another drug?”		dpnj_question, night, feeling, really_tired
Provider (n=252)
	Medication question	173 (68.7)		“Hi - we got your refill request - have you been taking your blood pressure medicine everyday?”		need_refilled, refill, question, taking
	Medication question response	41 (16.3)		“I have not heard of amlodipine causing loose stool - if anything very rarely it can cause some constipation.”		typical_side_effects, side_effect, feel, effect_din, morning
	Medication refill question	21 (8.3)		“Do you need refills on anything? do you need the enalipril refilled too? ok what do you need refilled?”		refill, refill_needed, medsk_need, refill_test refilled_treatment, need_refilled
	Medication change	17 (6.7)		“Hi talked to Dr [**NAME**] lets increase your amlodipine to 10mg and see what your readings are like in a couple of weeks....”		see_tomorrow, dose_question, week, lets_increase, dpn_dose_program

^aItalics indicate encoded features identified and shared by the example sentence and sublanguage features.

^bHCTZ: hydrochlorothiazide.

^cfreq: frequency.

^ddoseamt: dose amount.

^edin: drug ingredient.

^fpcam: Perelman Center for Advanced Medicine.

^gpah: Pennsylvania Hospital.

^hhup: Hospital of the University of Pennsylvania.

ⁱravdin: Ravdin building.

^jdpn: drug product name.

^kmeds: medications.