Table 3 Median cumulative cost per patient after 1, 2, 3, and 4 years following knee OA diagnosis, with inter-quartile range in parenthesis (in US$)
From: Knee OA cost comparison for hyaluronic acid and knee arthroplasty
Time points | No HA | All HA | ||
|---|---|---|---|---|
Without KA, n = 1,247,689 | With KA, n = 102,812 | Without KA, n = 180,862 | With KA, n = 35,661 | |
1 year | $190 ($70–$528) | $22,952 ($1075–$34,872) | $1268 ($609–$2275) | $3230 ($1218–$26,847) |
2 years | $219 ($80–$642) | $27,833 ($12,706–$38,932) | $1712 ($908–$3126) | $24,009 ($3597–$37,366) |
3 years | $247 ($90–$762) | $30,271 ($19,232–$41,922) | $2110 ($1123–$3963) | $30,607 ($16,006–$42,745) |
4 years | $289 ($106–$901) | $32,320 ($22,707–$44,261) | $2562 ($1346–$4915) | $34,803 ($24,286–$47,508) |