Table 6.
Comparison of standardized questionnaire items and subscales among underweight women’s dieting experience.
| Questionnaires and subscales | Underweight women diet experience | Median (IQR) | t | df | P | 95% CI | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Non-experience n = 180 | Experienced n = 220 | ||||||||||
| Mean | SD | Low/Middle/High (n%) | Mean | SD | Low/Middle/High (n%) | ||||||
| Eating Attitude Test (EAT-26) | 6.07 | 9.88 | 81.7%/11.7%/6.6% | 10.70 | 12.75 | 64.6%/20.06%/15.5% | 5 (1–11) | −4.089 | 396.89 | <0.001 | −6.852756 ~ −2.40280 |
| eHealth Literacy Scale (eHEALTH) | 21.54 | 7.39 | 32.8%/49.4%/17.8% | 24.02 | 6.60 | 16.8%/55.9%/27.3% | 24 (18–28) | −3.508 | 362.59 | <0.001 | −3.876 ~ −1.091 |
| Sociocultural Attitudes Toward Appearance Questionnaire-3 (SATAQ-3 JS) | 29.62 | 12.72 | 35.0%/48.9%/16.1% | 35.85 | 12.63 | 16.8%/52.3%/30.9% | 34 (23.5–42) | −4.895 | 398.00 | <0.001 | −8.737 ~ −3.730 |
| SATAQ Pressures | 6.22 | 3.85 | 0%/82.2%/17.8% | 7.82 | 3.97 | 0%/72.7%/27.3% | 6 (3–10) | −4.067 | 398.00 | <0.001 | −3.730 ~ −0.827 |
| SATAQ Internalization General | 8.46 | 4.29 | 28.9%/56.7%/14.4% | 10.63 | 4.24 | 11.8%/56.4%/31.8% | 10 (6–12) | −5.065 | 398.00 | <0.001 | −3.013 ~ −1.328 |
| SATAQ Internalization-Athlete | 6.53 | 3.26 | 30.6%/53.3%/16.1% | 7.69 | 3.59 | 20.5%/59.1%/20.5% | 7 (3.25–10) | −3.348 | 398.00 | <0.001 | −1.839 ~ −0.478 |
| SATAQ Information | 8.41 | 4.17 | 30.6%/52.8%/16.7% | 9.71 | 4.01 | 17.3%/60.5%/22.3% | 9 (6–12) | −3.178 | 398.00 | <0.001 | −2.110 ~ −0.497 |
| Ten-Item Personality Inventory (TIPI-J) | |||||||||||
| TIPI-J Extraversion | 7.02 | 2.63 | 18.9%/63.3%/17.8% | 6.75 | 2.87 | 22.3%/61.8%/15.9% | 9 (5–9) | 0.997 | 398.00 | 0.319 | −0.269 ~ 0.823 |
| TIPI-J Agreeableness | 9.24 | 2.23 | 20.6%/62.8%/16.7% | 9.58 | 2.34 | 18.6%/57.7%/23.6% | 9 (8–11) | −1.471 | 398.00 | 0.142 | −0.791 ~ 0.114 |
| TIPI-J Conscientiousness | 7.44 | 2.30 | 22.8%/60.6%/16.7% | 8.00 | 2.60 | 15.9%/57.3%/26.8% | 8 (6–9) | −2.28 | 398.00 | 0.012 | −1.053 ~ −0.078 |
| TIPI-J Emotional Stability | 8.92 | 2.30 | 25.6%/50.6%/23.9% | 8.84 | 2.42 | 23.2%/54.1%/22.7% | 9 (8–10) | 0.34 | 398.00 | 0.733 | −0.387 ~ 0.549 |
| TIPI-J Openness | 7.45 | 2.41 | 11.7%/36.7%/51.7% | 6.85 | 2.39 | 17.3%/37.7%/45.0% | 8 (5–7) | 2.47 | 398.00 | 0.014 | 0.122 ~ 1.069 |
| Rosenberg’s Self Esteem Scale (RSES)† | 29.22 | 7.64 | 21.1%/53.3%/25.6% | 28.16 | 8.00 | 25.5%/52.3%/22.3% | 29 (24–33) | 1.34 | 398.00 | 0.180 | −0.492 ~ 2.607 |
IQR: Interquartile Range.
Low/Middle/High (%): Low refers to the percentage of the population below the 25th percentile, middle refers to the IQR, and High refers to the 75th percentile and above.
†
The Japanese version is a 5-point Likert scale including intermediate item 3.