Table 3.

Nutritional health knowledge items of pregnant women participating in the nutritional health survey according to BMI and pregnancy order, April–May 2022 (n = 401).

No.	Topic	Body Mass Index (BMI) Level			Pregnancy Order			Total (n = 401)
		Underweight and Extremely Obese (n = 42)	Normal, Overweight, and Obese (n = 349)	Sig.	First (n = 210)	≥Second (n = 186)	Sig.
1	Iron	34 (81%)	279 (79.9%)	0.877	170 (81%)	150 (80.6%)	0.938	322 (80.3%)
2		7 (16.7%)	94 (26.9%)	0.151	61 (29%)	41 (22%)	0.112	103 (25.7%)
3		15 (35.7%)	191 (54.7%)	0.020	120 (57.1%)	85 (45.7%)	0.023	209 (52.1%)
4		22 (52.4%)	264 (75.6%)	0.001	153 (72.9%)	136 (73.1%)	0.953	293 (73.1%)
5	Folic Acid	34 (81%)	297 (85.1%)	0.481	178 (84.8%)	154 (82.8%)	0.596	337 (84%)
6		11 (26.2%)	145 (41.5%)	0.055	92 (43.8%)	64 (34.4%)	0.056	157 (39.2%)
7		15 (35.7%)	154 (44.1%)	0.298	97 (46.2%)	77 (41.4%)	0.338	174 (43.4%)
8	Calcium	38 (90.5%)	314 (90%)	1.000	191 (91%)	166 (89.2%)	0.570	362 (90.3%)
9		12 (28.6%)	128 (36.7%)	0.301	83 (39.5%)	56 (30.1%)	0.050	140 (34.9%)
10		36 (85.7%)	307 (88%)	0.674	182 (86.7%)	167 (89.8%)	0.338	353 (88%)
11	ω − 3	37 (88.1%)	330 (94.6%)	0.099	199 (94.8%)	170 (91.4%)	0.185	373 (93%)
12		27 (64.3%)	277 (79.4%)	0.026	162 (77.1%)	144 (77.4%)	0.948	311 (77.6%)
13	Vit. D	22 (52.4%)	169 (48.4%)	0.628	97 (46.2%)	98 (52.7%)	0.197	197 (49.1%)
14		11 (26.2%)	120 (34.4%)	0.288	54 (25.7%)	81 (43.5%)	<0.001	135 (33.7%)
15	Iodine	31 (73.8%)	305 (87.4%)	0.017	179 (85.2%)	160 (86%)	0.825	344 (85.8%)
16		14 (33.3%)	145 (41.5%)	0.306	83 (39.5%)	80 (43%)	0.482	164 (40.9%)
17	Vit A	16 (38.1%)	160 (45.8%)	0.340	106 (50.5%)	72 (38.7%)	0.019	179 (44.6%)
18	Major Ntr.	38 (90.5%)	326 (93.4%)	0.514	199 (94.8%)	169 (90.9%)	0.131	372 (92.8%)
19		27 (64.3%)	283 (81.1%)	0.011	172 (81.9%)	142 (76.3%)	0.173	318 (79.3%)
20		34 (81%)	325 (93.1%)	0.007	194 (92.4%)	169 (90.9%)	0.585	367 (91.5%)
21	Nutritional Recommendations	16 (38.1%)	158 (45.3%)	0.377	88 (41.9%)	87 (46.8%)	0.330	177 (44.1%)
22		28 (66.7%)	267 (76.5%)	0.162	168 (80%)	130 (69.9%)	0.020	299 (74.6%)
23		39 (92.9%)	306 (87.7%)	0.449	183 (87.1%)	166 (89.2%)	0.518	352 (87.8%)
24		27 (64.3%)	211 (60.5%)	0.631	125 (59.5%)	114 (61.3%)	0.720	243 (60.6%)
25		30 (71.4%)	267 (76.5%)	0.467	155 (73.8%)	147 (79%)	0.223	305 (76.1%)
26		23 (54.8%)	224 (64.2%)	0.232	141 (67.1%)	112 (60.2%)	0.152	255 (63.6%)
27		32 (76.2%)	292 (83.7%)	0.224	177 (84.3%)	151 (81.2%)	0.414	331 (82.5%)
28		32 (76.2%)	290 (83.1%)	0.267	173 (82.4%)	154 (82.8%)	0.914	330 (82.3%)
29		14 (33.3%)	165 (47.3%)	0.087	104 (49.5%)	76 (40.9%)	0.084	182 (45.4%)
30		11 (26.2%)	161 (46.1%)	0.014	98 (46.7%)	76 (40.9%)	0.245	175 (43.6%)
31		8 (19%)	93 (26.6%)	0.288	63 (30%)	42 (22.6%)	0.095	105 (26.2%)
32		10 (23.8%)	121 (34.7%)	0.159	69 (32.9%)	65 (34.9%)	0.661	135 (33.7%)
33		27 (64.3%)	154 (44.1%)	0.013	98 (46.7%)	84 (45.2%)	0.764	185 (46.1%)
34		35 (83.3%)	277 (79.4%)	0.546	168 (80%)	149 (80.1%)	0.979	320 (79.8%)
35	Supp.	35 (83.3%)	312 (89.4%)	0.297	187 (89%)	166 (89.2%)	0.949	356 (88.8%)
36		13 (31%)	103 (29.5%)	0.847	68 (32.4%)	52 (28%)	0.339	121 (30.2%)
37	Food Safety	4 (9.5%)	60 (17.2%)	0.204	42 (20%)	20 (10.8%)	0.011	65 (16.2%)
38		29 (69%)	257 (73.6%)	0.526	167 (79.5%)	123 (66.1%)	0.003	293 (73.1%)
39		38 (90.5%)	325 (93.1%)	0.524	197 (93.8%)	171 (91.9%)	0.468	371 (92.5%)
40		14 (33.3%)	157 (45%)	0.150	105 (50%)	69 (37.1%)	0.010	175 (43.6%)

Chi-squared test (χ²) and Fisher’s exact test were used with a significance level ≤ 0.05.