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Table 3 Measured values for Total Brake Response Time, Reaction Time, Movement Time and Brake Force

From: Osteoarthritis of the knee or hip significantly impairs driving ability (cross-sectional survey)

Variable

Control group (n = 21)

Left knee OA (n = 15)

Right knee OA (n = 18)

Left hip OA (n = 20)

Right hip OA (n = 19)

TBRT* [ms] p-value

488 (378-578)

621 (488-868) <0.001

606 (437-899) <0.001

507 (334-1304) 0.228 n.s.

539 (403-1720) 0.025

RT* [ms] p-value

190 (151-244)

222 (195-370) 0.001

237 (184-525) <0.001

212 (146-291) <0.001

217 (154-302) 0.098 n.s.

MT* [ms] p-value

295 (203-354)

368 (267-611) <0.001

354 (218-588) <0.001

290 (177-1018) 0.527 n.s.

309 (234-1475) 0.078 n.s.

BF* [N] p-value

469 (163-919)

440 (197-1533) 0.680 n.s.

532 (184-1129) 0.477 n.s.

389 (93-830) 0.098 n.s.

320 (90-710) 0.022

  1. *The values are given as the median with the range in parentheses. P-values were calculated by means of the exact Mann-Whitney-U test using a two-sided 0.05 level of significance.
  2. A p-value in bold type denotes a significant difference. n.s. = not significant.
  3. Abbreviations: total brake response time (TBRT), reaction time (RT), movement time (MT), brake force (BF), osteoarthritis (OA).