Table 4: Survey question results timolol hemihydrate BID vs timolol maleate in sorbate

Question		Timolol hemihydrate BID						Timolol maleate in sorbate
		N		Mean score ± SD				N		Mean score ± SD		p-value*
1		31		1.2 ± 1.2				39		2.4 ± 1.4		<0.001
2		31		0.8 ± 0.9				39		1.0 ± 0.9		0.53
3		31		0.9 ± 0.9				39		1.1 ± 1.0		0.32
4		31		1.0 ± 1.1				39		1.6 ± 1.6		0.07
5		31		0.6 ± 0.8				38		0.4 ± 0.9		0.35
6		31		0.7 ± 1.0				39		0.6 ± 1.0		0.66
7		31		0.1 ± 0.3				39		0.2 ± 0.5		0.60
8		6		0.2 ± 0.4				7		0.1 ± 0.4		0.92
10		16		1.3 ± 0.9				26		1.6 ± 1.1		0.33
Question 9
response		Timolol hemihydrate BID						Timolol maleate in sorbate				Total
1				3						5		8
2				1						0		1
6				0						1		1
Total				4						6		10
p-value**						0.33

*2-tailed p-value, t-test; **Chi-square test