Table 2 Adjusted ORs (95%CI) for prediabetes across the levels of ferritin in adults

< 20

0.75(0.35,1.59)

0.85(0.40,1.83)

0.88(0.41,1.88)

0.89(0.61,1.30)

1.01(0.68,1.49)

1.01(0.68,1.49)

20-<40

0.76(0.42,1.37)

0.83(0.46,1.50)

0.81(0.45,1.47)

0.61(0.41,0.90)*

0.70(0.48,1.04)*

0.69(0.46,1.03)

40-<60

0.55(0.33,0.91)*

0.60(0.36,0.99)*

0.59(0.35,0.98)*

1.08(0.76,1.54)

1.10(0.77,1.58)

1.11(0.77,1.59)

60-<80

Reference

Reference

Reference

Reference

Reference

Reference

80-<100

1.12(0.73,1.73)

1.15(0.75,1.79)

1.16(0.75,1.80)

1.36(0.93,1.98)

1.42(0.97,2.08)

1.42(0.97,2.09)

100-<120

1.15(0.75,1.76)

1.14(0.74,1.76)

1.11(0.72,1.71)

1.24(0.81,1.89)

1.20(0.78,1.85)

1.19(0.77,1.84)

120-<140

1.01(0.63,1.61)

0.98(0.61,1.57)

0.95(0.59.1.54)

1.14(0.69,1.90)

1.23(0.74,2.05)

1.22(0.73,2.04)

140-<160

1.43(0.90,2.27)

1.44(0.90,2.31)

1.44(0.90,2.31)

1.79(1.09,2.93)*

1.84(1.11,3.04)*

1.83(1.10,3.03)*

160-<180

1.37(0.83,2.26)

1.30(0.79,2.16)

1.28(0.78,2.14)

2.26(1.31,3.88)*

2.08(1.19,3.63)*

2.02(1.16,3.54)*

180-<200

1.17(0.65,2.11)

1.03(0.56,1.88)

1.00(0.55,1.83)

3.34(1.76,6.31)*

2.71(1.42,5.17)*

2.66(1.39,5.09)*

> 200

2.20(1.56,3.08)*

1.91(1.35,2.69)*

1.85(1.31,2.62)*

2.26(1.58,3.25)*

2.11(1.46,3.06)*

2.13(1.47,3.08)*

p-value

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001