Table 1.
Physician’s primary diagnosis among patients included in this analysis
| ICD9 diagnosis | N | % (95%CI) after adjustment for NHAMCS sampling strategy |
|---|---|---|
| 724 Unspecified back disorder | 2614 | 63.5% (61.2, 65.7%) |
| 724.2 Lumbago | 1258 | |
| 724.3 Sciatica | 156 | |
| 724.4 Thoracic or lumbosacral neuritis/ radiculitis | 42 | |
| 724.5 Backache, unspecified | 1065 | |
| 724.8 Other symptoms referable to back | 66 | |
| Other | 27 | |
| 847 Sprain/strain back | 845 | 21.7% (19.8, 23.7%) |
| 847.2 Lumbar | 607 | |
| 847.9 Unspecified | 233 | |
| Other | 5 | |
| (846) Sacroiliac sprains/ strains | 256 | 5.4% (4.5, 6.4%) |
| 846.0 Lumbosacral joint or ligament | 124 | |
| 846.9 Unspecified | 132 | |
| 848 Sprains/ strains | 135 | 3.6% (2.8, 4.7%) |
| 848.9 Unspecified site | 129 | |
| Other | 6 | |
| 729 Soft tissue injury | 100 | 2.4% (1.8, 3.1%) |
| 729.1 Myalgia and myositis | 72 | |
| 729.5 Pain in limb | 21 | |
| Other | 7 | |
| 722 Intervertebral disc disorder | 80 | 1.9% (1.4, 2.5%) |
| 722.1 Displacement of thoracic or lumbar intervertebral disc without myelopathy |
27 | |
| 722.2 Displacement of intervertebral disc, site unspecified, without myelopathy |
23 | |
| 722.93 Other and unspecified disc disorder (lumbar) | ||
| Other | 10 | |
| 20 | ||
| 959 Injury | 55 | 1.3% (0.9, 1.9%) |
| 959.1 Trunk | 15 | |
| 959.19 Other site on trunk | 22 | |
| Other | 18 | |
| 721 Spondylosis and allied disorders | 12 | 0.2% (0.1, 0.5%) |
| Total | 4097 | |