Analysis of risk factors of suicidal ideation in adolescent patients with depression and construction of prediction model

Table 2 Comparison of biochemical indices between the two groups

Index	SI group	Non-SI group	t value	P value
SF (μg/L)	71.010 ± 13.278	58.422 ± 17.842	-4.945	0.015
Folic acid (mmol/L)	4.350 ± 0.139	4.436 ± 0.172	11.864	0.053
Vitamin D3 (mg/L)	12.773 ± 0.836	13.200 ± 0.846	4.366	0.054
hs-CRP (mg/L)	4.115 ± 1.497	3.423 ± 1.012	-3.115	0.020
UA (mmol/L)	335.989 ± 16.667	330.924 ± 16.875	-1.809	0.861
TG (mmol/L)	1.073 ± 0.103	1.061 ± 0.105	-0.656	0.794
TC (mmol/L)	3.737 ± 0.048	3.737 ± 0.047	-0.023	0.949
HDL-C (mmol/L)	1.039 ± 0.210	1.174 ± 0.282	3.351	0.009
LDL-C (mmol/L)	2.079 ± 0.055	2.076 ± 0.061	-0.313	0.411
TP (g/L)	76.312 ± 1.088	75.951 ± 1.230	-1.881	0.062
ALB (g/L)	47.230 ± 0.916	46.716 ± 1.088	-3.549	0.081
TBIL (μmol/L)	14.964 ± 0.218	14.820 ± 0.203	-4.045	0.121
AST (U/L)	42.325 ± 0.543	41.897 ± 0.501	-4.852	0.089
TSH (mmol/L)	150.080 ± 1.180	149.890 ± 1.109	0.986	0.326
T3 (pmol/L)	1.519 ± 0.292	1.514 ± 0.246	-0.124	0.902
T4 [M(Q)pmol/L]	86.850 ± 18.366	87.285 ± 19.229	0.139	0.889
FT3 (pmol/L)	4.317 ± 0.501	4.250 ± 0.437	1.913	0.050
FT4 (pmol/L)	11.339 ± 1.965	11.244 ± 2.040	-0.284	0.777

SI: Suicidal ideation; SF: Serum ferritin; hs-CRP: High-sensitivity C-reactive protein; UA: Uric acid; TG: Triglyceride; TC: Total cholesterol; HDL-C: high-density lipoprotein; LDL-C: Low-density lipoprotein; TP: Total protein; ALB: Albumin; TBIL: Total bilirubin; AST: Aspartate transaminase; TSH: Thyroid-stimulating hormone; T₃: Triiodothyronine; T₄: Thyroxine; FT₃: Free T₃; FT₄: Free T₄.