Skip to main content

Table 4 Comparison of mean scores of knowledge, attitude, perceived behavioral control, subjective norms, behavioral intention and nutritional performance of pregnant women in experimental and control groups before and three months after educational intervention

From: Effect of educational program based on theory of planned behavior on promoting nutritional behaviors preventing Anemia in a sample of Iranian pregnant women

Variable group Before intervention
M ± SD
After intervention
M ± SD
P-value
Knowledge Experimental 4.14 ± 1.25 8.19 ± 1.05 0.001
Control 4.25 ± 1.08 4.39 ± 1.14 0.262
The significance level 0.258 0.001  
Attitude Experimental 26.14 ± 4.55 50.24 ± 4.28 0.001
Control 28.50 ± 4.16 29.18 ± 4.22 0.233
The significance level 0.239 0.001  
Perceived behavioral control Experimental 10.26 ± 1.73 20.88 ± 1.64 0.001
Control 10.15 ± 1.66 11.02 ± 1.68 0.237
The significance level 0.287 0.001  
Subjective Norms Experimental 13.18 ± 1.92 23.10 ± 1.70 0.001
Control 12.58 ± 1.89 13.35 ± 1.78 0.253
The significance level 0.241 0.001  
Behavioral intention Experimental 15.86 ± 1.40 25.57 ± 1.66 0.001
Control 14.17 ± 1.62 16.02 ± 1.58 0.214
The significance level 0.224 0.001  
Performance Experimental 17.05 ± 2.21 31.03 ± 2.19 0.001
Control 18.06 ± 2.27 19.26 ± 2.34 0.251
The significance level 0.245 0.001  
paired t-test