Table 7.

Comparison of the two groups (age) in terms of change in mean Schirmer’s test (mm) pre-and postdelivery (n=212)

Mean Schirmer’s Test (mm)	Age				P for comparison of the two groups at each of the timepoints (Wilcoxon Test)
	<30 Years		≥30 Years
	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)
Antepartum	19.76 (6.50)	20.00 (5.25)	18.63 (4.54)	20.00 (4.50)	0.391
Postpartum	22.12 (5.28)	22.50 (5.00)	21.52 (5.46)	22.50 (6.50)	0.965
Absolute change	−2.36 (3.49)	−2.50 (5.00)	−2.89 (5.05)	−3.50 (3.00)	0.279
Percent change	−19.5% (32.7)	−11.1% (28.3)	−20.5% (31.8)	−17.6% (17.4)	0.279
P value for change in Mean Schirmer’s Test (mm) over time within each group (Wilcoxon test)	<0.001		0.001
Overall P value for comparison of change in
Mean Schirmer’s Test (mm) over time between the two groups (Generalized Estimating Equations Method)		0.609