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Table 1 Frequency and percentage of study patients by category of selected sociodemographic variables and by obesity within each category

From: The effect of obesity on treatment outcomes for low back pain

Variable Category Number Percent Obese at baseline Percent
Gender Male 310 47.5 72 23.2
Female 342 52.5 111 32.5
Age in Years 18–29 57 8.7 15 26.3
30–39 142 21.8 41 28.9
40–49 119 18.3 33 27.7
50–59 122 18.7 35 28.7
60–69 91 14.0 25 27.4
70–79 95 14.6 29 30.5
80–95 26 4.0 5 19.2
Race White 396 60.7 84 21.2
Non-White 256 39.3 99 38.7
Treatment Group DC 165 25.3 36 21.8
DC/Modalities 163 25.0 51 31.3
MD 165 25.3 48 29.1
MD/PT 159 24.4 48 30.2
Back Pain (Prior episode) Yes 536 82.2 150 28.0
No 116 17.8 33 28.4
Duration (this episode) <3 months 275 42.2 76 27.6
3 months + 377 57.8 107 28.4