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Table 4 Changes in perceived cognition of illness at the 6th month after discharge in the intervention and usual care groups

From: Efficacy of a self-management program in patients with chronic viral hepatitis in China

Mann-Whitney U-test Analysis of covariance
Measure   Baseline 6th month   (ANCOVA)
n Median Interquartile range Median Interquartile range p value I - J SE p value
Perceived susceptibility IV 30 3.5 1–5 4.5 2–5 0.170 0.517 0.297 0.087
UC 26 3.5 2–5 4 2–5
Perceived severity IV 30 4 4–5 5 4–5 0.057 0.332 0.154 0.036
UC 26 4 4–5 5 3–5
Perceived benefit IV 30 4 3–4 4 3–5 <  0.001 1.180 0.185 <  0.001
UC 26 4 3–5 3 2–4
Perceived barriers IV 30 3 1–4 4 1–5 <  0.001 1.233 0.245 <  0.001
UC 26 3 2–4 2.5 1–4
  1. SE Standard Error, IV Intervention group, UC Usual care group, I – J = Difference in average value