Table 2.

Ambulatory utilization in the first year of observation, overall and stratified by fragmentation score^*

	Overall (N = 13,680)	Low fragmentation (N = 10,072)	High fragmentation (N = 3,608)	p-value
	Median (IQR)
Ambulatory visits	8 (6, 13)	8 (5, 12)	9 (6, 15)	<0.001
Ambulatory providers	4 (3, 6)	3 (3, 5)	6 (5, 8)	<0.001
Proportion of visits with the most frequently seen provider	0.47 (0.33, 0.60)	0.50 (0.43, 0.67)	0.29 (0.25, 0.33)	<0.001
Fragmentation score	0.78 (0.61, 0.86)	0.70 (0.54, 0.80)	0.90 (0.87, 0.93)	<0.001

^*Low fragmentation is defined as a reversed Bice-Boxerman (rBBI) score of <0.85. High fragmentation is defined as an rBBI score ≥0.85.

Key: IQR = interquartile range.