Table 2: A summary of participant characteristics.

Total group (n = 299)NW (n = 157)OB (n = 142) value

Age (y)25.8 ± 5.124.9 ± 4.626.9 ± 5.4<0.001
Education (y)16.2 ± 2.216.5 ± 2.215.9 ± 2.20.022
Highest qualification (n, %)
 Secondary school83 (28%)44 (28%)39 (27%)0.028
 Certificate/diploma46 (15%)15 (10%)31 (22%)
 Tertiary degree (bachelor/diploma)120 (40%)69 (44%)51 (36%)
 Higher degree49 (17%)28 (18%)21 (15%)
Weight (kg)78.1 ± 23.559.7 ± 7.098.5 ± 17.9<0.001
Height (cm)165.4 ± 6.9165.5 ± 7.3165.3 ± 6.60.805
BMI (kg/m2)28.6 ± 8.621.8 ± 1.736.1 ± 6.8<0.001
 Obese class I79 (26%)N/A79 (56%)
 Obese class II41 (14%)N/A41 (29%)
 Obese class III22 (7%)N/A22 (15%)
Waist circumference (cm)84.5 ± 18.769.7 ± 4.2101.2 ± 14.1<0.001
 Below 80 cm (n, %)156 (52%)154 (98%)2 (1%)<0.001
 80–88 cm inclusive (n, %)20 (7%)3 (2%)17 (12%)
 Above 88 cm (n, %)120 (40%)0 (0%)120 (85%)
Physical activity (MET-min/wk)
 Total MET-min/wk2603 ± 21413076 ± 23022080 ± 1815<0.001
 Low MET-min/wk1137 ± 11901246 ± 12341017 ± 11310.096
 Moderate MET-min/wk499 ± 755563 ± 809428 ± 6850.124
 High MET-min/wk967 ± 12631267 ± 1435636 ± 939<0.001
CRP (normal range < 5 mg/l)3.4 ± 4.31.4 ± 2.15.5 ± 5.0<0.001
 CRP < 5 mg/l (n, %)233 (78%)149 (96%)84 (60%)<0.001
 CRP ≥ 5 mg/l (n, %)63 (21%)6 (4%)57 (40%)
Omega-3 index (%)6.3 ± 1.76.8 ± 1.75.8 ± 1.6<0.001
 Low: <4% (n, %)13 (4%)1 (1%)12 (8%)0.002
 Safe: 4–8% (n, %)239 (83%)125 (83%)114 (85%)
 Optimal: >8% (n, %)36 (12%)25 (16%)11 (8%)
Depression, Anxiety and Stress Scale (z-score)−0.12 ± 0.88−0.33 ± 0.710.11 ± 0.98<0.0001

value for NW versus OB. Missing data: waist circumference (OB: n = 3); O3I (NW: n = 6; OB: n = 5). Obese class I = 30.0–34.9 kg/m2; obese class II = 35.0–39.9 kg/m2; obese class III ≥ 40.0 kg/m2. BMI, body mass index; N/A, not applicable; PA, physical activity; MET, metabolic equivalent of task; min, minute; wk, week; CRP, C-reactive protein.