Table 5.
Original and revised scale reliability and validity
| Mean | SD | αordinal | α | Lived poverty index r (p value) |
WHO-5 r (p value) |
Did not miss work due to last period OR (95% CI) |
Very confident managing menses at home OR (95% CI) |
Confident managing menses at work OR (95% CI) |
|
| Original Subscales | |||||||||
| Material and home environment needs (n=525) | 2.70 | 0.33 | 0.81 | 0.65 | −0.25 (<0.001) | 0.24 (<0.001) | 1.86 (0.95 to 3.64) | 4.11 (2.19 to 7.73) | 3.88 (2.21 to 6.83) |
| Insecurity (n=525) | 2.06 | 0.82 | 0.83 | 0.71 | −0.34 (<0.001) | 0.15 (<0.001) | 1.80 (1.14 to 2.83) | 1.13 (0.79 to 1.62) | 4.49 (2.99 to 6.76) |
| Material reliability concerns (n=523) | 2.54 | 0.49 | 0.71 | 0.64 | −0.32 (<0.001) | 0.19 (<0.001) | 1.57 (1.18 to 2.08) | 1.13 (0.92 to 1.41) | 2.27 (1.80 to 2.87) |
| Transport and work needs (n=483) | 2.16 | 0.78 | 0.83 | 0.76 | −0.26 (<0.001) | 0.15 (<0.001) | 1.15 (0.84 to 1.59) | 0.97 (0.76 to 1.22) | 2.60 (1.99 to 3.39) |
| Reuse needs (n=145) | 2.59 | 0.47 | 0.83 | 0.66 | −0.30 (<0.001) | 0.18 (.032) | 1.62 (0.73 to 3.60) | 1.74 (0.79 to 3.81) | 2.19 (1.04 to 4.61) |
| Reuse insecurity (n=145) | 2.08 | 0.86 | 0.77 | 0.69 | −025 (<0.001) | 0.25 (.003) | 1.75 (1.11 to 2.76) | 2.39 (1.49 to 3.84) | 1.29 (0.88 to 1.89) |
| Total score (original) (n=525) | 2.48 | 0.38 | 0.93 | 0.87 | −0.39 (<0.001) | 0.25 (<0.001) | 2.58 (1.43 to 4.63) | 1.76 (1.09 to 2.84) | 12.10 (6.78 to 21.56) |
| Revised adult subscales | |||||||||
| Material and home environment needs (n=525) | 2.66 | 0.40 | 0.72 | 0.57 | −0.34 (<0.001) | 0.26 (<0.001) | 1.83 (1.08 to 3.13) | 3.73 (2.18 to 6.36) | 2.32 (1.48 to 3.63) |
| Material and home insecurity (n=525) | 2.50 | 0.47 | 0.74 | 0.56 | −0.25 (<0.001) | 0.17 (<0.001) | 2.31 (1.45 to 3.67) | 1.31 (0.90 to 1.92) | 3.32 (2.20 to 5.01) |
| Disposal (n=421) | 2.42 | 0.77 | 0.77 | 0.64 | −0.09 (.078) | 0.06 (0.216) | 1.16 (0.82 to 1.64) | 1.01 (0.78 to 1.30) | 2.13 (1.62 to 2.81) |
| Work practice needs (n=481) | 2.26 | 0.73 | 0.86 | 0.79 | −0.36 (<0.001) | 0.14 (.002) | 1.30 (0.93 to 1.81) | 0.89 (0.70 to 1.15) | 3.51 (2.59 to 4.75) |
| Reuse needs (n=145) | 2.53 | 0.53 | 0.79 | 0.64 | −0.31 (<0.001) | 0.18 (.029) | 1.55 (0.77 to 3.10) | 1.48 (0.76 to 2.91) | 1.91 (1.00 to 3.65) |
| Reuse insecurity (n=145) | 2.08 | 0.86 | 0.77 | 0.69 | −0.24 (<0.001) | 0.25 (0.003) | 1.75 (1.11 to 2.76) | 2.39 (1.49 to 3.84) | 1.29 (0.88 to 1.89) |
| Total score (revised) (n=525) | 2.47 | 0.40 | 0.91 | 0.85 | −0.39 (<0.001) | 0.24 (<0.001) | 2.47 (1.42 to 4.30) | 1.64 (1.05 to 2.57) | 10.19 (5.94 to 17.51) |