Table 2.

Per-patient-per-month all-cause healthcare utilization over the entire follow-up period.

	Entire follow-up period
	PN cases	Non-PN controls	p value
	n = 1387	n = 2594
All-cause healthcare utilization (PPPM)
Patients with an inpatient admission, %	77.4%	67.2%	<0.001
Admissions PPPM, mean (SD)	0.11 (0.14)	0.10 (0.15)	0.019
Patients with an admission, mean (SD)	0.14 (0.14)	0.15 (0.16)	0.373
Patients with an ER visit, %	67.8%	58.4%	<0.001
ER visits PPPM, mean (SD)	0.13 (0.33)	0.11 (0.22)	0.015
Patients with a visit, mean (SD)	0.19 (0.39)	0.19 (0.26)	0.629
Patients with an outpatient office visit, N%	97.9%	96.6%	0.024
Outpatient office visits PPPM, mean (SD)	1.7 (1.2)	1.6 (1.2)	0.142
Patients with a visit, mean (SD)	1.7 (1.2)	1.7 (1.1)	0.342
Patients with outpatient hospital-based visits, %	98.7%	96.3%	<0.001
Outpatient hospital-based visits PPPM, mean (SD)	13.3 (14.7)	11.1 (17.8)	<0.001
Patients with a visit, mean (SD)	13.5 (14.7)	11.5 (18.0)	<0.001
Patients with a laboratory test, %	90.9%	87.9%	0.003
Laboratory tests PPPM, mean (SD)	3.7 (5.0)	4.1 (5.5)	0.018
Patients with a test, mean (SD)	4.1 (5.0)	4.7 (5.6)	0.001
Patients filling an outpatient prescription, %	97.2%	97.1%	0.941
Outpatient prescriptions PPPM, mean (SD)	4.6 (2.6)	4.0 (2.5)	<0.001
Patients with a prescription, mean (SD)	4.7 (2.5)	4.2 (2.4)	<0.001

ER, emergency department (room); PN, peripheral neuropathy; PPPM, per patient per month; SD, standard deviation.