. 2017 Jan 25;31(1):11–18. doi: 10.1016/j.sjopt.2017.01.002

Table 5.

The mean anterior & posterior elevations and its P values.

	Preoperative Mean ± SD Min-max	3 months Mean ± SD Min-max	P¹ value	6 months Mean ± SD Min-max	P² value	12 months Mean ± SD Min-max	P³ value
Anterior elevation	17.38 ± 6.7	18.2 ± 6.5^AC	0.003^*	15.6 ± 6.5^AB	<0.001^*	15.3 ± 6.5^CB	<0.001^*
Anterior elevation	(6.0–43.0)	(8.0–42.0)	0.003^*	(6.0–39.0)	<0.001^*	(6.0–38.0)	<0.001^*
Posterior elevation	30.09 ± 14.0	32.5 ± 15.7^AC	0.01^*	30.5 ± 15.3^A	0.6	30.12 ± 15.5^C	0.9
Posterior elevation	(13.0–72.0)	(13.0–78.0)	0.01^*	(11.0–75.0)	0.6	(11.0–75.0)	0.9

Paired samples t test. ABC: Similar letters indicate statistically significant differences (p < 0.05).

P1: difference between preoperative and after 3 months.

P2: difference between preoperative and 6 months.

P3: difference between preoperative and 12 months.

SD: Standard deviation.