Table 4.

Impact of patient characteristics on objective outcome variables.

Characteristic	Test statistic, P value
Age <12 years	Z = −3.847, p < 0.001
Age ≥12 years	Z = −3.471, p < 0.001
Duration of disease < 2 years	Z = −3.975, p < 0.001
Duration of disease ≥ 2 years	Z = −.214, p = 0.027
Treatment group 1 (steroid drops or tablets only)	Z = −3.448, p < 0.001
Treatment group 2 (steroids and at least one other agent)	Z = −2.433, p = 0.015
Treatment group 3 (steroids and at least one other agent and at least one surgical intervention)	Z = −2.032, p = 0.042

Objective knowledge scores were compared using the Wilcoxon Signed Ranks test. Note: p values in bold indicate significance less than 0.05.