Table 7.

Summary of stepwise multiple linear regression models for FTBUT.

	Type 1		Type 2		Type 3		Type 4		Type 1–4
	Beta	p	Beta	p	Beta	p	Beta	p	Beta	p
LLT (nm)	0.600	<0.001	0.616	<0.001	0.572	<0.001	0.383	<0.001	0.328	<0.001
Schirmer score (mm)	0.182	<0.001	0.140	0.008	0.110	<0.001	0.142	<0.001	0.117	<0.001
Age (Y)			0.189	0.019	0.167	0.001	0.194	<0.001	0.237	<0.001
MGE (upper)					0.102	0.002	0.133	<0.001	0.127	<0.001
MGE (lower)							0.083	0.001	0.070	<0.001
Sex	0.059	0.012			0.038	0.041	0.057	<0.001	0.057	<0.001
Meiboscale (grades)	0.121	0.004							0.083	<0.001
Adjusted R2	0.810		0.838		0.874		0.830		0.826

LLT: average lipid-layer thickness; MGE: number of expressible meibomian glands; TB: number of total blinks; PB: number of partial blinks; PB (%): partial blink rate; FTBUT: fluorescein tear-film break-up time; SPK: superficial punctate keratitis; Beta: standardized coefficients; p: statistical significance by stepwise multiple regression analysis.