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Table 5 Constant error for subgroups of sex, age, and measured VO2max (n = 198)

From: Workers’ physical activity data contribute to estimating maximal oxygen consumption: a questionnaire study to concurrently assess workers’ sedentary behavior and cardiorespiratory fitness

 N (%)Measured VO2maxBMI model*WG model*%fat model*
Predicted VO2maxCEPredicted VO2maxCEPredicted VO2maxCE
Sex
 Women93 (47.0)35.0 ± 5.535.2 ± 4.0−0.17 ± 4.2235.5 ± 4.1−0.48 ± 4.1734.9 ± 4.30.16 ± 3.92
 Men105 (53.0)41.4 ± 6.241.6 ± 4.2−0.18 ± 4.2941.9 ± 4.2−0.51 ± 4.1141.3 ± 4.20.13 ± 4.24
Age
 30–3929 (14.7)41.4 ± 6.042.4 ± 4.1−0.91 ± 3.7542.4 ± 4.5−0.98 ± 3.5941.8 ± 3.9−0.39 ± 3.76
 40–4988 (44.4)39.1 ± 7.338.8 ± 5.40.32 ± 4.5239.3 ± 5.4−0.12 ± 4.4938.7 ± 5.60.40 ± 4.35
 50–5981 (40.9)36.5 ± 5.636.9 ± 4.5−0.45 ± 4.0837.2 ± 4.6−0.73 ± 3.9236.4 ± 4.70.05 ± 3.92
VO2max
 Low66 (33.3)31.4 ± 2.634.1 ± 3.7−2.64 ± 2.8834.2 ± 3.7−2.80 ± 2.8933.5 ± 3.6−2.07 ± 2.87
 Middle66 (33.3)37.7 ± 1.638.6 ± 3.5− 0.91 ± 3.3639.0 ± 3.6−1.27 ± 3.4538.3 ± 3.7− 0.58 ± 3.60
 High66 (33.3)46.0 ± 4.243.0 ± 3.83.02 ± 4.2343.4 ± 3.62.58 ± 3.9942.9 ± 3.73.08 ± 3.87
  1. BMI body mass index, CE constant error, VO2max maximal oxygen consumption, WG waist girth
  2. * Each model includes age, sex, and PA score in addition to the titled values (BMI, WG, and %fat) as independent variables