Table 2.

Adjusted and Expected Cost Differences in Dollars

	Comparison Group 1	Comparison Group 2	Total
Cost Difference by Intensity Level ($)	Difference (95% CI)	Difference (95% CI)	Difference (95% CI)
Low intensity	−120.83 (−229.41, −12.25)*	−373.96 (−593.68, −154.24)*	−247.39 (−411.61, −83.18)*
High intensity	−169.48 (−697.69, 358.73)	−386.39 (−1,340.68, 567.91)	−277.93 (−1,025.20, 469.34)
Total	−145.63 (−416.73, 125.47)	−380.30 (−878.26, 117.67)	−262.96 (−647.52, 121.60)

Note. Negative cost differences indicate Population Health Management program savings. Total savings rates for each intensity level are computed based on the mean savings rate across comparison groups. Savings are aggregated across intensity levels based on the average savings rate for low and high intensity weighted by the proportion of intervention members enrolled in each intensity level.

^*Statistically significant cost differences.