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. Author manuscript; available in PMC: 2023 Jan 1.
Published in final edited form as: Appl Ergon. 2022 Sep 1;106:103879. doi: 10.1016/j.apergo.2022.103879

Table 3.

Hazard ratio (95% CI) per risk factor from the multivariate Cox PH models for the normalized obstacle height (obstacle height/stature × 100%).

Model-1: BMI Model-2: BMI + balance measures Model-3: BMI + balance measures + comp movements

Estimate HR (95% CI) P-value Estimate HR (95% CI) P-value Estimate HR (95% CI) P-value

BMI (kg/m2) 0.135 1.14 (1.07, 1.22) < .001 0.208 1.23 (1.00, 1.51) .049 0.132 1.14 (1.05, 1.25) .003
ABC (score: 0–100) - - - −0.047 0.95 (0.86, 1.06) .368 −0.013 0.99 (0.94, 1.03) .559
RMSacc (g) - - - −0.171 0.84 (0.33, 2.16) .823 −0.195 0.82 (0.35, 1.95) .658
Hover (yes vs. no) - - - - - - −0.957 0.38 (0.06, 2.48) .315
Pivot (yes vs. no) - - - - - - −1.208 0.30 (0.09, 0.96) .043
Hand (yes vs. no) - - - - - - −0.304 0.30 (0.16, 2.60) .614

Model Goodness-of-fit
Coefficient of determination (R2) .31 .33 .53
Concordance (C) .70 .70 .75

Values in bold indicate significant effects at p < .05. HR > 1: a positive association between the covariate and the event probability, HR = 1: no effect, HR < 1: a negative association.