IJCS | Volume 32, Nº4, July/August 2019

337 Figure 1 - Comparison of estimated (CLINIMEX-Aerobic Fitness Questionnaire) (METS) and measured (maximal cardiopulmonary exercise test) VO 2 max (METS). Table 4 - Descriptive statistics for men and women for main variables* Men Women N 687 313 Age (years) 56.2 ± 16.5 [34 - 78] 53.1 ± 16.2 [31 - 75] Height (cm) 175.1 ± 7.5 [165.1 - 184.5] 161.9 ± 7.1 [153.4 - 171.9] Weight (kg) 84.5 ± 14.9 [68.8 - 103.4] 67.0 ± 12.7 [52.8 - 84.8] Body mass index (kg/m²) 27.5 ± 4.2 [23.0 - 32.5] 25.6 ± 4.9 [20.4 - 31.9] Waist** (cm) 97.5 ± 12.6 [83.0 - 113.7] 85.5 ± 12.9 [70.8 - 103.5] Measured VO 2 (METs) 9.02 ± 3.85 [4.5 - 14.9] 7.54 ± 3.35 [3.5 - 12.3] C-AFQ (METs) 9.35 ± 4.02 [4.0 - 15.0] 7.98 ± 3.62 [3.5 - 13.0] Predicted VO 2 (METs) 8.48 ± 2.77 [4.9 - 12.2] 8.26 ± 1.86 [5.8 - 11.0] * data expressed as mean ± standard deviation and as [percentile 10 - percentile 90]; ** measured at umbilical level. Figure 3 - Separate comparison of measured VO 2 max (METs) and estimated VO 2 max (METS) by CLINIMEX-Aerobic Fitness Questionnaire among the four physicians. Footnote: Boxes represent percentiles 25–75 and whiskers limit percentiles 10 and 90; central boxes' line represent median value. Figure 2 - Linear regression and scatterplot of measured VO 2 max (METs) and estimated VO 2 max (METS) by CLINIMEX Aerobic Fitness Questionnaire. Measured VO 2 max (METs) Araújo et al. CLINIMEX aerobic fitness questionnaire Int J Cardiovasc Sci. 2019;32(4):331-342 Original Article estimated (C-AFQ) and measured (CPET) VO 2 max, dividing the total sample into two subgroups according to sex (men vs. women), clinical condition (healthy vs. unhealthy), regular use of ß-blockers (yes vs. no) In order to analyze the potential influence of several other variables in the magnitude of the main result, we used two different approaches. First, we compared results for the delta METs, i.e., the difference between