Table 3.

Regression analysis of possible factors affecting IOP change after provocative tests of water-drinking test and pharma- cologic mydriasis in patients with primary angle closure suspect after laser peripheral iridotomy

Factors	Simple Linear Regression	Multiple Regression
	P -value	Coefficient	P -value
Age	0.332
Sex	0.094*
Test (WDT vs. pharmacologic mydriasis)	0.002*	2.664	0.002
Baseline IOP	0.225
SE Refraction	0.359
Anterior chamber depth	0.406
Anterior chamber volume	0.301
Anterior chamber angle	0.278
Axial Length	0.565
Central corneal thickness	0.814
Mean keratometry	0.118
*Factors with P-value less than 0.1 were entered into a multiple stepwise regression model
IOP, intraocular pressure; SE, spherical equivalent; WDT, water-drinking test