Case Control Study
Copyright ©The Author(s) 2019.
World J Clin Cases. Aug 26, 2019; 7(16): 2165-2175
Published online Aug 26, 2019. doi: 10.12998/wjcc.v7.i16.2165
Table 1 Comparison of baseline data between the two groups
GroupMale / femaleAge in yrNYHA class
Hospital stay in dBody mass index as kg/m2Education background
IIIIIIVMiddle school and underHigh school or technical schoolJunior college, university and above
Intervention group, n = 5031/1968.21 ± 4.691724915.63 ± 3.2122.78 ± 3.943893
Control group, n = 5029/2168.57 ± 4.121825715.21 ± 3.0523.03 ± 4.1135105
χ2/t value0.1670.4080.2990.6710.3100.457
P value0.6830.6840.8610.5040.7570.499