Table 3.
        Factors associated with isolated low HDL-c and non-isolated low HDL-c.
,Isolated low HDL-c vs. normal HDL-c,Non-isolated low HDL-c vs. normal HDL-c
Crude model,Multivariable modela,Crude model,Multivariable modela
PR (95% CI),PR (95% CI),PR (95% CI),PR (95% CI)
Study group
 Urban,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Migrant,1.11 (0.91–1.36),1.11 (0.91–1.35),1.05 (0.78–1.42),1.09 (0.83–1.45)
 Rural,1.21 (0.97–1.52),1.34 (1.01–1.77),0.56 (0.34–0.91),0.86 (0.50–1.49)
 Male,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Female,1.92 (1.64–2.26),1.75 (1.48–2.08),1.93 (1.49–2.49),1.49 (1.14–1.96)
 30 - 39 years,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 40–49 years,0.87 (0.71–1.06),0.90 (0.75–1.09),1.64 (1.10–2.43),1.40 (0.95–2.06)
 50–59 years,1.06 (0.88–1.27),1.09 (0.92–1.29),2.30 (1.58–3.34),1.90 (1.32–2.73)
 ≥60 years,0.86 (0.68–1.09),0.87 (0.69–1.09),1.08 (0.64–1.81),1.07 (0.64–1.78)
 No,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Yes,1.19 (1.02–1.37),1.11 (0.91–1.35),0.92 (0.69–1.23),1.34 (1.02–1.75)
 Normal,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Overweight,1.34 (1.13–1.58),1.45 (1.22–1.72),2.70 (1.88–3.88),2.54 (1.72–3.75)
 Obese,1.51 (1.25–1.82),1.45 (1.18–1.78),4.23 (2.96–6.02),3.32 (2.19–5.03)
 No,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Yes,0.85 (0.54–1.35),1.08 (0.69–1.68),0.93 (0.46–1.87),1.12 (0.56–2.22)
 Low,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 High,0.57 (0.40–0.83),0.72 (0.51–1.03),0.65 (0.39–1.08),0.92 (0.53–1.61)
 Moderate/high,1 (Reference),1 (Reference),1 (Reference),1 (Reference)
 Low,0.94 (0.79–1.11),0.95 (0.79–1.13),1.12 (0.86–1.48),0.94 (0.73–1.22)