ADIPOQ and metabolic syndrome: As a cross-sectional study, low adiponectin’s association with MetS has been reported in apparently healthy subjects (MetS vs. no MetS: females 5.7 ± 1.8 vs. 8.6 ± 2.1 μg/mL, p < 0.001; males 3.3 ± 1.8 vs. 4.4 ± 2.1 μg/mL, p = 0.002) by ELISA [18], in non-diabetic adults (MetS vs. no MetS: females 10.12 [7.62–13.41] vs. 11.74 [8.80–15.22] μg/mL, p < 0.001; males 6.00 [4.32–8.53] vs. 8.00 [5.62–11.33] μg/mL, p < 0.001) by radioimmunoassay [28], and in farmers (MetS vs. no MetS: females 7.8 ± 3.2 vs. 9.6 ± 3.8 μg/mL; males 5.1 ± 2.1 vs. 7.6 ± 3.2 μg/mL, all p < 0.05) by ELISA [30].