Table 4.
Assessment of intervention-related changes in vitamin D-related knowledge by age, sex, place of living, education, financial status, health status, and employment (analyses on N = 373 subjects, included in both April and December 2020 sampling).
| Variables | Levels | N (%) | Subjects with increase1 in vitamin-D related knowledge; N (%) | Odds ratio (CI) |
|---|---|---|---|---|
| Overall | 373 (100) | 274 (73.5) | ||
| Age groups | 66 years and above | 27 (7.2) | 21 (77.8) | 1.21 (0.40–3.60) |
| 50–65 years of age | 144 (38.6) | 109 (75.7) | 1.10 (0.56–2.18) | |
| 36–49 years of age | 117 (31.4) | 82 (70.1) | 0.86 (0.44–1.68) | |
| 18–35 years of age | 85 (22.8) | 62 (72.9) | 1 | |
| Sex | Female | 177 (47.4) | 135 (76.3) | 1.36 (0.83–2.23) |
| Male | 196 (52.6) | 139 (70.9) | 1 | |
| Place of living | Urban | 79 (21.2) | 60 (76.0) | 1 |
| Intermediate | 124 (33.2) | 95 (76.6) | 1.08 (0.54–2.16) | |
| Rural | 170 (45.6) | 119 (70.0) | 0.82 (0.43–1.57) | |
| Education | Higher | 178 (47.7) | 128 (71.9) | 5.36 (1.61–17.78)b |
| Medium | 181 (48.5) | 141 (77.9) | 6.34 (1.93–20.78)b | |
| Lower | 14 (3.8) | 5 (35.7) | 1a | |
| Financial status | Above average | 60 (16.1) | 40 (66.7) | 0.71 (0.31–1.62) |
| Average | 225 (60.3) | 170 (75.6) | 1.08 (0.59–1.99) | |
| Below average | 88 (23.6) | 64 (72.7) | 1 | |
| Health status | Low | 13 (3.5) | 10 (76.9) | 1 |
| Average | 81 (21.7) | 55 (67.9) | 0.46 (0.10–2.07) | |
| High | 279 (74.8) | 209 (74.9) | 0.73 (0.17–3.14) |
Increase in December 2020 vitamin D-related knowledge score, in comparison with April 2020 scoring. Three respondents showed no change in vitamin D related knowledge. Identified factors based on contrast of marginal linear predictions accounting for increase in vitamin D-related knowledge: p < 0.01 (education). Predictor levels not sharing the same superscript are significantly different at p < 0.05 using pairwise comparisons of predictive margins with Sidak's adjustment method. Area under receiver operating characteristic (ROC) curve: 0.62.