Table 1

Baseline characteristics shown as mean (SD) or number

Demographic variablesHA→salineSaline→HA
Age (years)60.0  (13.5)62.3  (14.8)
Height (cm)164.1 (7.4)164.7 (7.1)
Weight (kg)63.6 (11.8)65.6 (13.7)
Duration of symptoms (months)52.6 (52.2)42.2 (49.5)
No of drops of previous treatment1.5 (0.7)1.6 (0.8)
Frequency (per day)4.7 (3.0)5.2 (4.7)
Sex:
 M39
 F3127
Centre:
 135
 21212
 31817
 412
Schirmer’s test
 Left eye (mm)4.4 (4.7)4.3 (4.3)
 Right eye (mm)3.9 (5.2)4.4 (4.2)
Rose bengal
 Left eye4.9 (1.8)4.4 (2.2)
 Right eye4.9 (1.8)4.4 (2.1)