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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