Table 3.
Prophet, Bayesian Inference, Volume Projections (2020-2050) for Spinal Instrumentation
| Year (5-yr Intervals) | Spinal Instrumentation (No. of Procedures) | |||
| Single (95% FI) | Two-Four (95% FI) | Five-Seven (95% FI) | Eight-Twelve (95% FI) | |
| 2020 | 66,408 [56,488-56,702] | 91,819 [91,127-92,406] | 14,965 [14,817-15,121] | 1,747 [1,672-1,814] |
| 2025 | 76,049 [63,994-68,553] | 112,464 [110,657-114,347] | 20,257 [19,512-20,976] | 2,307 [2,214-2,390] |
| 2030 | 85,691 [70,303-81,667] | 132,558 [128,053-137,384] | 25,587 [23,796-27,438] | 2,815 [2,668-2,956] |
| 2035 | 95,267 [75,546-95,561] | 152,992 [144,967-161,006] | 30,790 [27,622-33,934] | 3,330 [3,097-3,572] |
| 2040 | 104,778 [80,435-110,818] | 173,782 [161,636-186,468] | 35,867 [31,314-40,975] | 3,852 [3,508-4,197] |
| 2045 | 114,419 [83,913-126,754] | 194,427 [177,376-212,372] | 41,159 [34,621-48,120] | 4,412 [3,954-4,881] |
| 2050 | 124,061 [87,027 142,907] | 214517 [191,425-237,425] | 46,489 [37,771-55,152] | 4,920 [4,326-5,528] |
FI = forecast interval