Table 3.

Difference of mean preoperative minimum linear diameter, base diameter and hole height between secondary closure types in reopened cases in type 2 closure group.

	Type 1	Type 2	p value
The mean preoperative MLD	278.5 ± 98.33 µm (range: 183–392)	572.83 ± 136.83 µm (range: 507–820)	p = 0.03
The mean preoperative BHD	630.25 ± 179.31 µm (range: 401–810)	1456.83 ± 446.17 µm (range: 1125–1549)	p = 0.04
The mean preoperative HH	113.67 ± 56.83 µm (range: 277–524)	543.17 ± 99.69 µm (range: 418–690)	p = 0.393

BD, base diameter; HH, hole height; MLD, minimum linear diameter.