Serum folate (μg/L) | Control | EPL | ESCC | ||||
---|---|---|---|---|---|---|---|
n (%) | n (%) | OR (95% CI)a | p value | n (%) | OR (95% CI)a | p value | |
Q1 (< 24.43) | 50 (25.0) | 80 (40.0) | 1.00 (referent) |  | 90 (45.0) | 1.00 (referent) |  |
Q2 (24.43–29.14) | 50 (25.0) | 68 (34.0) | 0.73 (0.41–1.30) | 0.290 | 55 (27.5) | 0.67 (0.39–1.152) | 0.147 |
Q3 (29.14–36.24) | 50 (25.0) | 24 (12.0) | 0.32 (0.16–0.62) | 0.001 | 44 (22.0) | 0.51 (0.29–0.89) | 0.017 |
Q4 (> 36.24) | 50 (25.0) | 28 (14.0) | 0.26 (0.13–0.54) | < 0.001 | 11 (5.5) | 0.15 (0.07–0.32) | < 0.001 |