Groups | n | EMP (ng/mL) | 95% CI for EMP | | sTM (ng/mL) | 95% CI for sTM | |
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The survival group | 95 | 114.20 ± 15.83 | (110.92- 117.48) | | 200.53 ± 19.39 | (196.62-204.44) | |
The death group | 33 | 174.23 ± 18.05 | (167.87- 180.59) | | 401.63 ± 25.74 | (392.45, 410.81) | |
t | - | 18.090 | - | | 46.980 | - | |
P | - | < 0.001 | - | | < 0.001 | - | |
- Note: EMP and sTM levels in the table are presented as mean ± standard deviation (\(\bar{X}\)± s). Independent sample t test was used for comparison between the survival group and the death group. The t test is suitable for comparing the difference in means between two independent sample populations, so the t test was chosen as the statistical method when comparing EMP and sTM levels between the survival group and the death group. In this study, Table 1 involved the repeated measurement data at different time points, so the repeated measurement ANOVA was used for analysis, while the data in Table 3 are the measurement data of two groups of independent samples, so the independent sample t-test was used. Confidence intervals were calculated using the 95% confidence level as follows: mean ± 1.96 × standard error (SE). Standard error (SE) = standard deviation (SD) /√n, where n was the sample size