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Table 1 Change in mean and median total NCS by treatment group

From: The improving outcomes in intermittent exotropia study: outcomes at 2 years after diagnosis in an observational cohort

  Treatment within 2 years:
Total NCS
(0-9):
Observation
(n = 191)
Vision only
(n = 63)
Non-surgical treatment
(n = 48)
Surgery
(n = 49)
Mean [SD]
median [IQR]
and (range) of NCS at enrolment
3.43 [1.44]
3 [2 to 4]
(1 to 8)
3.38 [1.53]
3 [2 to 4]
(1 to 7)
4.02 [1.47]
4 [3 to 5]
(1 to 9)
4.98 [1.94]
5 [3 to 6]
(2 to 9)
Mean [SD]
median [IQR]
and (range) of NCS at outcome
3.13 [1.65]
3 [2 to 4]
(0 to 9)
3.40 [1.89]
3 [2 to 4]
(0 to 7)
3.42 [2.01]
3 [2 to 4.75]
(0 to 8)
1.92 [2.19]
1 [0 to 3]
(0 to 9)
Mean difference[95% CIs] -0.30[-0.55 to -0.05] 0.02[-0.41 to 0.44] -0.60 [-1.15 to -0.06] -3.06[-3.83 to -2.29]
Significance of difference between enrolment and 24 months/6-month post-op, by treatment group p = 0.021*
p = 0.028†
p = 0.94*
p = 0.98†
p = 0.031*
p = 0.026†
p < 0.001*
p < 0.001†
  1. * paired samples t-test for differences in means
  2. † Wilcoxon test for differences in medians