Age-Matched, Case-Controlled Comparison of Clinical Indicators for Development of Entropion and Ectropion

Table 3

Comparison analysis for all groups.

Clinical measurement	Control versus entropion	Control versus ectropion	Entropion versus ectropion	Entropion versus entropion control	Ectropion versus ectropion control	Control versus entropion control	Control versus ectropion control
MRD2	𝑃=0.324; CI = −0.6358–0.2127	𝑃=0.210; CI = −0.7588–0.1691	𝑃=0.823; CI = −08.24–0.6587	𝑃=0.693; CI = −0.5522–0.8250	𝑃=0.413; CI = −0.7418–1.7656	𝑃=0.684; CI = −0.4424–0.2920	𝑃=0.423; CI = −0.3210–0.7551
Lid crease height	𝑃=0.000; CI = −1.3923–−0.6099	𝑃=0.163; CI = −0.9950–1.707	𝑃=0.269; CI = −0.4695–1.6473	𝑃=0.000; CI = 0.6460–1.8485	𝑃=0.252; CI = −2.6701–0.7725	𝑃=0.065; CI = −0.0158–0.5081	𝑃=0.000; CI = −1.9763–−0.7956
Retractor dehiscence	𝑃=0.000	𝑃=0.000	𝑃=0.000	𝑃=0.000	𝑃=0.113	𝑃=0.017	𝑃=0.405
White line	𝑃=0.000	𝑃=0.000	𝑃=0.195	𝑃=0.000	𝑃=0.0797	𝑃=0.297	𝑃=1.000
Orbital fat	𝑃=0.000	𝑃=0.000	𝑃=1.000	𝑃=0.008	𝑃=0.631	𝑃=0.000	𝑃=0.000
Lid excursion	𝑃=0.000; CI = 1.3141–2.4231	𝑃=0.000; CI = 1.1019–2.0020	𝑃=0.361; CI = −1.0046–0.3712	𝑃=0.000; CI = −2.2804–−0.7802	𝑃=0.466; CI = −1.1801–0.5515	𝑃=0.161; CI = −0.1382–0.8148	𝑃=0.002; CI = 0.4709–2.0044
Lateral canthal excursion	𝑃=0.000; CI = 1.2083–0.4820	𝑃=0.126; CI = −0.1052–0.8347	𝑃=0.001; CI = −2.007–−0.5589	𝑃=0.000; CI = −2.1370–−0.8812	𝑃=0.199; CI = −0.4548–2.1072	𝑃=0.422; CI = −0.2040–0.4820	𝑃=0.001; CI = 0.5199–1.8619
Snapback test	𝑈=548.5; 𝑍=−2.386; 𝑃=0.017	𝑈=286.0; 𝑍=−5.161; 𝑃=0.000	𝑈=328.0; 𝑍=−2.327; 𝑃=0.020	𝑈=271.0; 𝑍=−1.190; 𝑃=0.234	𝑈=105.0; 𝑍=0.00; 𝑃=1.000	𝑈=503.5; 𝑍=−0.886; 𝑃=0.376	𝑈=58.5; 𝑍=−3.165; 𝑃=0.002
Lid distraction	𝑃=0.000; CI = −3.0460–−1.3917	𝑃=0.000; CI = −3.4398–−1.8909	𝑃=0.738; CI = −0.4466–0.4997	𝑃=0.375; CI = −0.6933–1.8049	𝑃=0.154; CI = −0.4131–2.5131	𝑃=0.001; CI = −2.6231–−0.7029	𝑃=0.015; CI = −2.9114–−0.3194

𝑃: the statistical value for the independent samples 𝑡-test or Fisher’s exact test for a 95% confidence level. CI: confidence interval. 𝑈: test statistic. 𝑍: test statistic reported for the Mann-Whitney 𝑈 test that indicates if the two samples being compared come from the same underlying distribution at the 𝑃=0.05 significance level. A 𝑍 score of less than 1.96 indicates that the two samples come from the same underlying distribution.