. 2023 Nov 7;24:101252. doi: 10.1016/j.artd.2023.101252

Table 3.

Paired samples statistical analysis results.

Pelvic landmark pair (observer 1 vs 2)	Mean difference	SD	SEM	95% confidence interval of the difference		t	df	P value
Pelvic landmark pair (observer 1 vs 2)	Mean difference	SD	SEM	Lower bound	Upper bound	t	df	P value
ASIS-ASIS line	−0.020	0.141	0.014	−0.048	0.008	−1.421	98	.158
Interteardrop line	−0.444	2.544	0.256	−0.952	0.063	−1.738	98	.085
Bi-ischial line	−0.306	1.960	0.198	−0.699	−0.087	−1.546	97^a	.125

SD, standard deviation; SEM, standard error of the mean; ASIS, anterior superior iliac spine.

One patient’s bi-ischial line value was not measured by one of the reviewers.