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Table 3 Relative risk (RR) and p-values for low back pain (LBP) among different occupational groups by severity of disease at recruitment

From: The relationship between low back pain and professional driving in young military recruits

Group comparison Category 1 Category 2 Category 3
Car driver vs. administrative 1.00 (NS) 1.13 (NS) 1.35 (NS)
Truck driver vs. administrative 0.49 (0.40–0.60, p < 0.001) 1.03 (NS) 0.82 (NS)
Total drivers vs. administrative 0.62 (0.527–0.726, p < 0.001) 1.07 (NS) 1.07 (NS)
Truck driver vs. car driver 0.49 (NS) 0.92 (NS) 0.61 (NS)
  1. Category 1 – No history of LBP
  2. Category 2 – Mild LBP
  3. Category 3 – LBP with mild clinical/radiographic findings
  4. Bold data already signifies a p < 0.05 i.e. significant finding