1-month prevalence of self-reported ADEs and preventable ADEs, by ADE category and age group (n = 7099).

ADE = adverse drug event; CI = confidence interval.
aAs one person could have multiple ADEs, the combined prevalence is lower than the sum of the prevalences of the ADE categories.
bFor testing the statistical significance between all three age groups using χ2 test, with the exception of using Fisher’s exact test for drug intoxications from overdose due to low number of cases.
cNon-significant difference between all the three age groups.
dSignificant difference between all three age groups; for all pairwise age group comparisons p<0.01.
eSignificant difference between all three age groups; for a pairwise comparison 18–44 vs. ≥65 years p<0.001; other pairwise age group comparisons p>0.05.
fSignificant difference between all three age groups; for pairwise comparisons 18–44 vs. ≥65 years and 45–64 vs. ≥65 years p<0.01; for 18–44 vs. 45–64 years p>0.05.

ADE=药品不良反应（adverse drug event）；CI=置信区间（confidence interval）。
a 由于单一个体可能发生多种药品不良反应，因此合并患病率低于各ADE类别患病率之和。
b 采用χ²检验对三个年龄组间的统计学差异进行整体检验；因药物过量中毒的病例数较少，故针对该类别采用Fisher精确检验。
c 三个年龄组间无统计学差异。
d 三个年龄组间存在统计学差异；所有年龄组两两比较的P值均<0.01。
e 三个年龄组间存在统计学差异；其中18–44岁组与≥65岁组的两两比较P<0.001，其余年龄组两两比较P>0.05。
f 三个年龄组间存在统计学差异；其中18–44岁组与≥65岁组、45–64岁组与≥65岁组的两两比较P<0.01，18–44岁组与45–64岁组的两两比较P>0.05。