Table 2.
Likelihood of subjects in each latent class receiving each type of service during each quarter after incident low back pain diagnosis
| Q1 | Q2 | Q3 | Q4 | Q5 | Q6 | Q7 | Q8 | Q9 | |
|---|---|---|---|---|---|---|---|---|---|
| Recurrent-therapeutic services | |||||||||
| Test sample (8.1%) | |||||||||
| Min. injection/imaging/surgerya | 3.8% | 3.3% | 2.8% | 2.4% | 2.4% | 1.6% | 2.0% | 1.9% | 1.7% |
| Min. therapeutic servicesa | 51.2% | 54.1% | 53.5% | 57.9% | 66.6% | 66.6% | 60.3% | 53.9% | 51.0% |
| Min. prescription pain medicationsa | 24.8% | 18.3% | 14.0% | 12.0% | 12.8% | 12.5% | 11.7% | 12.0% | 13.7% |
| Any low back pain care | 86.5% | 72.8% | 69.1% | 70.8% | 77.6% | 76.5% | 70.6% | 65.5% | 64.8% |
| Validation sample (7.6%) | |||||||||
| Min. injection/imaging/surgerya | 3.1% | 3.0% | 2.4% | 1.9% | 1.9% | 1.7% | 2.6% | 1.7% | 1.9% |
| Min. therapeutic servicesa | 52.1% | 56.7% | 57.9% | 63.1% | 70.2% | 68.5% | 61.3% | 55.5% | 51.0% |
| Min. prescription pain medicationsa | 24.1% | 16.8% | 13.8% | 12.9% | 12.3% | 11.8% | 10.5% | 12.7% | 13.0% |
| Any low back pain care | 86.5% | 74.9% | 71.2% | 73.5% | 78.9% | 76.6% | 72.1% | 68.6% | 64.0% |
| Recurrent-pain medications | |||||||||
| +Test sample (7.4%) | |||||||||
| Min. injection/imaging/surgerya | 2.5% | 2.8% | 2.7% | 2.1% | 2.3% | 2.0% | 1.7% | 2.1% | 2.2% |
| Min. therapeutic servicesa | 38.8% | 22.8% | 17.3% | 15.3% | 14.4% | 14.6% | 15.1% | 13.8% | 13.5% |
| Min. prescription pain medicationsa | 51.0% | 71.4% | 75.9% | 79.1% | 82.7% | 83.0% | 82.5% | 79.1% | 75.0% |
| Any low back pain care | 96.0% | 88.9% | 87.3% | 88.6% | 90.4% | 90.4% | 89.7% | 86.9% | 84.2% |
| Validation sample (7.6%) | |||||||||
| Min. injection/imaging/surgerya | 2.4% | 2.5% | 2.9% | 2.3% | 2.4% | 2.7% | 2.0% | 2.1% | 2.0% |
| Min. therapeutic servicesa | 41.1% | 23.3% | 19.2% | 16.6% | 14.5% | 14.3% | 13.4% | 13.6% | 13.9% |
| Min. prescription pain medicationsa | 53.0% | 71.4% | 75.3% | 79.9% | 82.5% | 83.3% | 80.5% | 77.8% | 75.0% |
| Any low back pain care | 96.7% | 87.2% | 88.0% | 90.1% | 90.6% | 91.3% | 89.5% | 87.2% | 85.1% |
| Recurrent-apparent recoverers | |||||||||
| Test sample (31.1%) | |||||||||
| Min. injection/imaging/surgerya | 3.4% | 3.8% | 3.0% | 2.8% | 2.7% | 2.5% | 2.3% | 2.4% | 2.4% |
| Min. therapeutic servicesa | 54.2% | 23.0% | 15.2% | 11.4% | 9.7% | 7.4% | 7.9% | 9.2% | 10.4% |
| Min. prescription pain medicationsa | 29.3% | 23.4% | 17.9% | 15.6% | 14.8% | 14.5% | 14.3% | 15.2% | 16.7% |
| Any low back pain care | 91.6% | 59.1% | 47.8% | 41.1% | 39.7% | 36.6% | 36.6% | 38.1% | 39.9% |
| Validation sample (31.6%) | |||||||||
| Min. injection/imaging/surgerya | 3.3% | 3.9% | 3.1% | 2.7% | 2.6% | 2.3% | 2.6% | 2.4% | 2.5% |
| Min. therapeutic servicesa | 54.4% | 23.5% | 15.0% | 11.5% | 10.0% | 8.9% | 8.9% | 9.0% | 10.4% |
| Min. prescription pain medicationsa | 29.5% | 22.6% | 17.7% | 16.4% | 15.5% | 14.3% | 14.7% | 15.3% | 15.6% |
| Any low back pain care | 91.7% | 58.9% | 47.2% | 41.4% | 40.2% | 37.1% | 37.4% | 37.1% | 39.2% |
| Recovery | |||||||||
| Test sample (53.4%) | |||||||||
| Min. injection/imaging/surgerya | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Min. therapeutic servicesa | 5.1% | 0.9% | 0.6% | 0.4% | 0.4% | 0.5% | 0.5% | 0.5% | 0.7% |
| Min. prescription pain medicationsa | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Any low back pain care | 6.0% | 0.9% | 0.6% | 0.4% | 0.4% | 0.5% | 0.5% | 0.5% | 0.7% |
| Validation sample (53.3%) | |||||||||
| Min. injection/imaging/surgerya | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Min. therapeutic servicesa | 5.5% | 1.1% | 0.7% | 0.6% | 0.7% | 0.6% | 0.5% | 0.4% | 0.6% |
| Min. prescription pain medicationsa | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| Any low back pain care | 6.2% | 1.1% | 0.7% | 0.6% | 0.7% | 0.6% | 0.5% | 0.4% | 0.6% |
a
Percentages are based on the given type of service being the only, or one of two, types received during the quarter. If a patient received three or four types of service during the quarter, the individual types of service cannot be distinguished.