Table 2.

All-cause HCRU counts among patients with utilization and ≥ 5 years of follow-up (n = 335)

In patients with ≥ 1 event	Year 1	Year 2	Year 3	Year 4	Year 5
Inpatient admissions
n	170	78	83	88	91
Number of visits
Mean (SD)	1.8 (1.5)	1.7 (1.3)	1.9 (1.7)	1.8 (1.6)	1.9 (1.8)
Median (IQR)	1.0 (1.0–2.0)	1.0 (1.0–2.0)	1.0 (1.0–2.0)	1.0 (1.0–2.0)	1.0 (1.0–2.0)
Length of stay, days
Mean (SD)	17.6 (23.2)	17.2 (22.3)	21.3 (26.8)	16.5 (20.5)	24.0 (29.1)
Median (IQR)	9.0 (5.0–20.0)	8.0 (4.0–19.0)	9.0 (5.0–30.0)	7.0 (4.0–19.5)	11.0 (4.0–32.0)
ER visits
n	193	158	166	179	168
Number of visits
Mean (SD)	3.7 (4.6)	3.7 (5.3)	3.9 (5.3)	3.6 (5.0)	4.1 (5.6)
Median (IQR)	2.0 (1.0–4.0)	2.0 (1.0–3.0)	2.0 (1.0–4.0)	2.0 (1.0–4.0)	2.0 (1.0–4.0)
Ambulatory visitsa
n	335	333	333	329	331
Number of visits
Mean (SD)	35.8 (25.1)	31.4 (24.7)	31.3 (26.5)	33.0 (29.7)	32.3 (27.9)
Median (IQR)	30.0 (19.0–47.0)	24.0 (14.0–41.0)	24.0 (14.0–39.0)	23.0 (13.0–45.0)	25.0 (14.0–43.0)
Office visits
n	333	331	328	326	328
Number of visits
Mean (SD)	23.0 (17.5)	19.9 (16.0)	19.2 (15.1)	18.2 (14.3)	18.3 (14.1)
Median (IQR)	20.0 (12.0–28.0)	16.0 (9.0–26.0)	15.0 (9.0–24.0)	15.0 (9.0–24.0)	15.0 (9.0–23.5)
Outpatient visits
n	297	286	280	279	290
Number of visits
Mean (SD)	14.8 (14.3)	13.7 (16.1)	15.0 (20.0)	17.8 (24.7)	16.2 (22.6)
Median (IQR)	10.0 (5.0–19.0)	8.0 (4.0–18.0)	8.0 (4.0–18.0)	8.0 (4.0–21.0)	9.0 (4.0–19.0)
Pharmacy fills
n	328	324	325	324	322
Number of fills
Mean (SD)	62.9 (43.8)	60.7 (44.0)	59.7 (43.6)	59.9 (46.5)	58.0 (43.8)
Median (IQR)	54.0 (32.0–80.0)	48.0 (29.0–81.0)	47.0 (29.0–80.0)	47.0 (29.0–79.0)	45.0 (28.0–74.0)

^aIncludes physician office and hospital outpatient visits

ER, emergency room; HCRU, healthcare resource utilization; IQR, interquartile range; SD, standard deviation