Retrospective Study
Copyright ©The Author(s) 2025.
World J Psychiatry. Jan 19, 2025; 15(1): 100880
Published online Jan 19, 2025. doi: 10.5498/wjp.v15.i1.100880
Table 1 General information
General informationControl group (n = 55)Schizophrenia group
t/ZP value
Mild group (n = 39)
Moderate group (n = 45)
Severe group (n = 16)
Age (years)34.56 ± 10.0334.28 ± 10.6734.71 ± 10.3534.86 ± 10.430.0180.997
Gender (male/female)25/3018/2122/236/100.6220.891
Smoking, n (%)17 (30.91)11 (28.21)13 (28.89)5 (31.25)0.1130.990
Drinking, n (%)4 (7.27)5 (12.82)4 (8.88)1 (6.25)1.0400.792
Family history, n (%)17 (30.91)11 (28.21)13 (28.89)5 (31.25)0.1130.990
Marital status, n (%)0.7720.993
Unmarried16 (29.09)12 (30.77)13 (28.89)4 (25.00)
Married30 (54.55)20 (51.28)23 (51.11)8 (50.00)
Divorced/widowed9 (16.36)7 (17.95)9 (20.00)4 (25.00)
Years of education (years)15.93 ± 1.5015.97 ± 1.2715.42 ± 1.6215.638 ± 1.201.3800.251
Table 2 Comparison of thyroid hormone levels (mean ± SD)
Grouping
T3 (nmol/L)
T4 (nmol/L)
FT3 (pmol/L)
FT4 (pmol/L)
TSH (mIU/L)
Cortisol (mmol/L)
Control group (n = 55)2.04 ± 0.53118.66 ± 17.444.60 ± 0.5016.51 ± 2.203.10 ± 0.903.23 ± 0.09
Schizophrenia group (n = 100)1.77 ± 0.5898.78 ± 16.304.35 ± 0.6013.40 ± 2.192.08 ± 0.856.50 ± 1.30
t2.8567.0862.7838.4427.00225.066
P value0.005< 0.0010.006< 0.001< 0.001< 0.001
Table 3 Comparison of serum thyroid hormone concentrations in each group (mean ± SD)
Grouping
T3 (nmol/L)
T4 (nmol/L)
FT3 (pmol/L)
FT4 (pmol/L)
TSH (mIU/L)
Cortisol (mmol/L)
PANSS
Mild group (n = 39)1.95 ± 0.63103.12 ± 17.424.29 ± 0.5213.22 ± 1.802.08 ± 0.524.95 ± 0.8868.51 ± 5.77
Moderate group (n = 45)1.72 ± 0.5294.13 ± 16.114.33 ± 0.5812.99 ± 2.00a2.88 ± 0.85a6.32 ± 1.25a75.20 ± 6.38a
Severe group (n = 16)1.50 ± 0.5085.23 ± 15.204.36 ± 0.6213.32 ± 2.12a,b3.41 ± 0.99a,b7.45 ± 1.50a,b81.88 ± 7.06a,b
t4.0499.6150.1020.02120.72129.74328.311
P value0.0200.0030.9030.885< 0.001< 0.001< 0.001
Table 4 Correlation between thyroid hormone and Positive and Negative Syndrome Scale score
Thyroid hormonePANSS score
r
P value
T3-0.2590.025
T4-0.2180.029
FT30.1300.196
FT4-0.0490.631
TSH0.2150.032
FSH0.3150.019
Table 5 Receiver operating characteristic curve analyse of related factors
Index
AUC
SE
95%CI
P value
Optimal cutoff value
Sensitivity (%)
Specificity (%)
T30.7490.0710.614-0.8560.001≤ 1.6875.074.4
T40.7660.0700.632-0.870< 0.001≤ 98.8287.556.4
FT30.5450.0930.405-0.6800.628> 4.4950.074.36
FT40.5470.0920.407-0.6820.608> 13.8662.566.7
TSH0.8900.0510.7770.958> 2.7481.289.7
Cortisol0.9250.0380.821-0.978< 0.001> 5.8881.389.7
Table 6 Value assignment of relevant factors
Factor
Assignment
T31: ≤ 1.68 nmol/L, 0: > 1.68 nmol/L
T41: ≤ 98.82 nmol/L, 0: > 98.82 nmol/L
FT31: ≤ 4.49 pmol/L, 0: > 4.49 pmol/L
FT41: ≤ 13.86 pmol/L, 0: > 13.86 pmol/L
TSH1: ≤ 2.74 mIU/L, 0: > 2.74 mIU/L
Cortisol1: > 5.88 mmol, 0: ≤ 5.88 mmol
Table 7 Logistic multivariate analyse of factors affecting schizophrenia
Index
β
SE
Wald
OR (95%CI)
P value
T3-0.6160.24510.2621.852 (1.526-2.652)< 0.001
T4-0.5060.21910.5501.658 (1.121-1.985)< 0.001
FT3-0.2270.2772.9581.255 (1.026-1.451)0.152
FT4-0.2640.2414.5451.302 (1.114-1.534)0.089
TSH-0.6990.2719.5182.011 (1.781-2.698)< 0.001
Cortisol0.5110.2309.8251.523 (1.132-2.011)< 0.001