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. 2016 Oct 27;57(2):451–462. doi: 10.1007/s00394-016-1328-4

Table 2.

Folate intake by sociodemographic variables and fruit and vegetable intake

Folate intake (µg/d) Folate intake (µg/10 MJ) DFE (µg/day)
All Low-energy reporters excluded All Low-energy reporters excluded All
n Median (Q 1Q 3) n Median (Q 1Q 3) p n Median (Q 1Q 3) n Median (Q 1Q 3) p n Median (Q 1Q 3)
All 1797 246 (196–304) 1467 261 (215–318) 0.000 1797 302 (253–367) 1467 298 (250–360) 0.210 1797 257 (201–323)
Male 792 257 (204–316) 627 276 (229–332) 0.000 792 278 (232–336) 627 273 (230–327) 0.190 792 268 (210–336)
Female 1005 237 (189–294) 840 249 (207–307) 0.000 1005 326 (272–390) 840 323 (271–383) 0.360 1005 247 (195–211)
Female aged 18–44 y 450 227 (181–282) 369 240 (199–294) 0.002 450 301 (256–355) 369 296 (254–345) 0.400 450 239 (185–300)
p (sex) < 0.001 p (sex) < 0.001 p (sex) < 0.001 p (sex) < 0.001 p (sex) < 0.001
p (female) < 0.001 p (female) = 0.001 p (female) < 0.001 p (female) < 0.001 p (female) < 0.001
Fruit and vegetable consumption
Fruit and vegetables <200 g/d 519 191 (152–235) 354 211 (171–251) 0.000 519 249 (213–293) 354 236 (205–276) 0.002 519 198 (155–248)
Fruit and vegetables 200–350 g/d 680 239 (201–284) 569 250 (211–290) 0.004 680 299 (261–347) 569 294 (258–337) 0.110 680 249 (206–298)
Fruit and vegetables 350–500 g/d 376 286 (242–328) 331 292 (249–331) 0.100 376 340 (287–395) 331 333 (283–381) 0.170 376 294 (248–344)
Fruit and vegetables >500 g/d 222 354 (304–412) 213 355 (306–414) 0.730 222 401 (347–471) 213 396 (344–465) 0.640 222 355 (309–435)
p < 0.001 p < 0.001 p < 0.001 p < 0.001 p < 0.001
Income
Income < median 840 237 (186–294) 682 250 (209–307) 0.000 840 303 (254–373) 682 301 (250–367) 0.450 840 248 (194–315)
Income ≥ median 957 255 (202–312) 785 269 (221–324) 0.000 957 300 (252–362) 785 295 (250–355) 0.290 957 265 (206–330)
p < 0.001 p < 0.001 p = 0.420 p = 0.300 p < 0.001
Level of education
Elementary school 214 230 (183–296) 157 250 (200–313) 0.007 214 305 (262–371) 157 292 (252–351) 0.190 214 243 (187–312)
High school 712 233 (190–286) 573 249 (208–295) 0.000 712 289 (244–349) 573 288 (240–344) 0.380 712 243 (196–299)
College or university 755 267 (214–326) 663 277 (230–333) 0.011 755 318 (263–381) 663 316 (263–377) 0.590 755 280 (221–344)
p < 0.001 p < 0.001 p < 0.001 p < 0.001 p < 0.001

The Wilcoxon–Mann–Whitney rank sum test was used to test if sex, age, income, fruit and vegetable consumption or low-energy reporting affected intake. The Kruskal–Wallis test was used to compare if education level affected intake

DFE Dietary Folate Equivalents