## 3 Results
### Pre- and Post-Effectiveness Evaluation of Web-Based Nutrition Education  
The results of the pre- and post-web-based nutrition education are shown in Table 5. Nutritional knowledge increased statistically significantly from 13.6 \(\pm\) 1.7 points before nutrition education to 14.6 \(\pm\) 2.2 points after nutrition education (_p_ = 0.015). In addition, in this study, web-based nutrition education was conducted for 12 weeks for 35 people who had no experience in nutrition education or dietary control, and the results of pre- and \begin{table}
\begin{tabular}{c c c} \hline \hline
**Characteristic** & **Categories** & **M \(\pm\) SD or n (\%)** \\ \hline \multirow{2}{*}{Sex} & Male & 15 (30.6) \\  & Female & 34 (69.4) \\ \hline \multirow{2}{*}{Age (years)} & & 26.5 \(\pm\) 5.1 \\  & 20–29 & 38 (77.6) \\  & 30–39 & 11 (22.4) \\ \hline \multirow{2}{*}{Physical activity} & Low intensity & 10 (20.4) \\  & Moderate & 28 (57.1) \\  & Strenuous & 11 (22.4) \\ \hline \multirow{2}{*}{Stress status} & Low & 5 (10.2) \\  & Moderate & 14 (28.6) \\  & High & 30 (61.2) \\ \hline \multirow{4}{*}{Experience with nutrition education or dietary modification} & No experience & 35 (71.4) \\  & Nutrition education & 3 (6.1) \\ \cline{1-1}  & Dietary modification & 9 (18.4) \\ \cline{1-1}  & Both & 2 (4.1) \\ \hline \hline \end{tabular}
\end{table} 
Table 3: General characteristics of IBS patients who received web-based nutrition education. post-education are shown in Figure 3. Self-efficacy increased statistically significantly from 3.7 \(\pm\) 2.4 points before nutrition education to 4.5 \(\pm\) 2.0 points after nutrition education (\(p\) = 0.044), and nutrition knowledge increased statistically significantly from 13.4 \(\pm\) 1.7 points before nutrition education to 14.3 \(\pm\) 2.4 points after nutrition education (\(p\) = 0.016). \begin{table}
\begin{tabular}{p{113.8 pt} p{113.8 pt} p{113.8 pt}} \hline
**Area** & **Details of Contents** & **M \(\pm\) SD** \\ \hline \multirow{6}{*}{Content aspects of web-based education} & Do you think the information provided in the nutrition education for IBS symptom relief is accurate and up to date? & 4.7 \(\pm\) 0.5 \\ \cline{2-3}  & Is the information provided in the nutrition education for IBS symptom relief easy to understand without confusion? & 4.6 \(\pm\) 0.5 \\ \cline{2-3}  & Do you think there is enough information available in nutrition education to relieve IBS symptoms? & 4.5 \(\pm\) 0.7 \\ \cline{2-3}  & Do you think the content of the nutrition education for IBS symptoms will be useful in your daily life in the future? & 4.5 \(\pm\) 0.6 \\ \cline{2-3}  & How satisfied were you with the content of the nutrition education to relieve IBS symptoms? & 4.6 \(\pm\) 0.5 \\ \cline{2-3}  & Sub-total & 4.9 \(\pm\) 0.5 \\ \hline \multirow{6}{*}{Tool utilization aspects of web-based education} & Do you think web-based nutrition education helps you understand and accept the content? & 4.2 \(\pm\) 0.7 \\ \cline{2-3}  & Do you feel that web-based nutrition education provides you with psychological stability (emotional support)? & 4.0 \(\pm\) 0.8 \\ \cline{2-3}  & Do you think the amount of time you spend viewing and understanding web-based nutrition education is appropriate? & 4.3 \(\pm\) 0.6 \\ \cline{2-3}  & Sub-total & 4.2 \(\pm\) 0.6 \\ \hline \multirow{6}{*}{Overall satisfaction with web-based education} & How satisfied are you with the web-based nutrition education for IBS symptoms? & 4.5 \(\pm\) 0.6 \\ \cline{2-3}  & Would you continue to utilize web-based nutrition education to reduce IBS symptoms? & 4.4 \(\pm\) 0.7 \\ \cline{2-3}  & Do you feel your symptoms are less severe than before the education? & 4.3 \(\pm\) 0.7 \\ \cline{2-3}  & Sub-total & 4.4 \(\pm\) 0.6 \\ \cline{2-3}  & Average & 4.4 \(\pm\) 0.5 \\ \hline \end{tabular}
\end{table} 
Table 4: Satisfaction scores of the patients with IBS regarding web-based nutrition education. IBS indicates irritable bowel syndrome.