Table 1

Sociodemographic characteristics by first provider seen for low back pain

TotalPTChiroACUAPRNPCPPM&ROrthoEMAll Other
Sample Size3,799,593109,480942,92537,52260,734957,619160,537192,14491,9791,246,653
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Mean (%)SD
(%)
Female56.049.660.448.953.449.963.348.258.549.354.349.858.449.356.149.653.949.858.349.3
Age 18–3416.437.118.438.722.942.023.042.118.638.914.735.49.829.811.932.427.444.613.233.8
Age 35–4416.437.117.337.820.240.230.245.918.438.716.437.013.333.912.833.421.741.213.634.3
Age 45–5420.540.319.939.921.140.825.343.522.341.721.240.920.340.219.339.520.740.519.339.5
Age 55–6421.541.120.740.518.238.615.536.221.841.322.842.024.843.223.842.615.836.523.042.1
Age 65–7414.935.614.234.911.331.74.620.910.931.114.935.619.239.419.139.38.628.017.437.9
Age 75+10.230.39.529.36.224.11.412.08.027.210.030.012.633.213.033.65.923.513.534.2
Elixhauser Index (#)0.040.220.020.140.020.140.010.100.040.210.050.230.040.210.030.160.030.180.070.26
Medicare Advantage23.042.115.636.312.733.31.913.616.937.524.442.933.347.127.444.614.735.430.045.8
PPO/EPO27.944.926.444.123.742.516.437.021.040.727.544.731.046.329.745.721.841.332.146.7
POS54.849.860.848.867.646.880.739.564.547.952.849.946.249.951.050.058.949.246.349.9
HMO14.034.79.028.66.124.02.415.411.131.416.837.319.639.715.536.217.638.117.638.1
Other3.217.73.819.12.615.80.67.53.518.32.916.93.217.63.819.01.612.54.019.6
Not in High Deduct Plan72.444.769.646.067.247.070.245.768.346.573.744.075.643.073.144.371.944.975.443.0
High Deductible Plan22.341.624.142.728.645.228.345.024.342.921.240.918.939.121.240.825.543.618.338.7
Unknown High Deductible5.322.36.424.44.220.11.512.17.326.15.121.95.522.95.723.22.515.76.224.1
Metropolitan (UIC)86.034.791.827.584.736.098.014.177.541.885.435.390.329.689.730.390.729.185.435.3
Micropolitan (UIC)6.524.73.819.17.726.60.78.211.131.46.624.94.721.24.821.44.420.46.424.4
Noncore (UIC)7.526.44.420.67.626.51.311.511.531.98.027.15.021.85.422.75.021.88.227.4
County: Low Education8.427.85.723.17.326.010.230.38.828.39.829.85.623.09.429.28.628.08.628.0
County: Low Employ11.031.36.624.98.928.52.014.115.736.412.733.39.128.89.629.59.028.612.332.8
County: High Poverty11.832.39.529.39.429.24.520.816.236.813.534.210.330.411.031.310.630.712.933.5
County Uninsured11.05.09.54.410.34.98.64.110.84.911.45.010.84.611.65.011.24.911.55.0