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. 2019 Nov 21;8(12):1607–1617. doi: 10.1530/EC-19-0408

Table 1.

Baseline characteristics of the study population.

n Total Women Men
n 1326 623 703
Age (years) 1326 66 (7) 66 (7) 66 (7)
Current smokers (%) 1326 15.8 (13.9; 17.9) 13.3 (10.8; 16.2) 18.1 (15.3; 21.1)
Glucose tolerance status (%) 1326
 NGT 53.0 (50.3; 55.7) 58.9 (54.9; 62.8) 47.8 (44.0; 51.6)
 Pre-diabetes 35.6 (33.0; 38.2) 33.1 (29.4; 36.9) 37.8 (34.2; 41.5)
 Screen detected diabetes 11.4 (9.7; 13.2) 8.0 (6.0; 10.4) 14.4 (11.9; 17.2)
BMI (kg/m2) 1326 27.1 (4.5) 26.6 (5.1) 27.5 (3.9)
Systolic blood pressure (mmHg) 1324 133 (17) 130 (18) 136 (16)
Diastolic blood pressure (mmHg) 1324 81 (10) 81 (10) 82 (10)
Fasting plasma glucose (mmol/L) 1326 6.0 (0.8) 5.9 (0.7) 6.1 (0.8)
2-h plasma glucose (mmol/L) 1325 6.8 (2.3) 6.6 (2.1) 7.0 (2.4)
Fasting serum insulin (pmol/L) 1325 37 (25; 55) 36 (24; 50) 39 (26; 60)
2-h serum insulin (pmol/L) 1324 184 (110; 313) 185 (117; 299) 181 (101; 325)
ISI0-120 1321 36.9 (25.9; 48.8) 37.2 (27.6; 48.8) 36.4 (24.0; 49.2)
Insulinogenic index 1314 8.3 (5.2; 13.7) 9.0 (5.3; 14.4) 7.9 (5.2; 13.1)
Physical activity measures
 PAEE (kJ/kg/day) 1267 32.7 (15.6) 31.0 (14.8) 34.3 (16.1)
 VPA (h/day) 1104 0.00 (0.00; 0.01) 0.00 (0.00; 0.00) 0.00 (0.00; 0.02)
 MVPA (h/day) 1104 0.47 (0.19; 0.90) 0.37 (0.16; 0.76) 0.54 (0.22; 1.02)
 MVPA ≥0.5 h/day (%) 1104 33.5 (29.8; 37.4) 38.9 (36.3; 41.6) 43.7 (40.0; 47.4)
 LPA (h/day) 1104 4.63 (3.39; 5.90) 4.61 (3.30; 5.92) 4.67 (3.41; 5.85)
 Sedentary (h/day) 1104 12.2 (2.4) 12.3 (2.4) 12.1 (2.3)
 CRF (ml O2/kg/min) 793 29.9 (5.4) 28.7 (5.1) 30.8 (5.4)
Biochemical measures
 Plasma GLP-1, tAUC0-30 (pmol/L × min) 1310 615 (450; 825) 645 (465; 870) 585 (435; 780)
 Plasma GLP-1, tAUC0-120 (pmol/L × min) 1303 2805 (2040; 3795) 3075 (2280; 4200) 2595 (1935; 3480)
 Plasma GLP-1, rAUC0–30 (fold increase) 1310 1.7 (1.3; 2.5) 1.9 (1.5; 2.9) 1.6 (1.3; 2.1)
 Plasma GLP-1, rAUC0–120 (fold increase) 1303 2.0 (1.5; 3.1) 2.3 (1.7; 3.7) 1.8 (1.4; 2.6)

Data are the means (s.d.), medians (interquartile range) or percentages (95% CI).

CRF, cardiorespiratory fitness; GLP-1, glucagon-like peptide-1; ISI0-120, insulin sensitivity index; LPA, light physical activity; MVPA, moderate-to-vigorous physical activity; NGT, normal glucose tolerance; PAEE, physical activity energy expenditure; VPA, vigorous physical activity.