Table 1.
Description of variables used in the mediating/moderating model (median, IQR), according to demographic and socioeconomic characteristics
| Variable | BMI (kg/m2) | BID (kg/m2) | SN score (4–16)* |
PHY-QoL (7–28)* |
PSY/SOC-QoL (7–28)* |
Total (14–56) |
|---|---|---|---|---|---|---|
| Total (N=3,016) | 31.1 (27.4 to 35.3) | 1.7 (−0.6 to 4.3) | 12 (10 to 13) | 20 (17 to 23) | 17 (14 to 19) | 37 (32 to 41) |
| Gender | ||||||
| Men | 31.2 (27.8 to 34.9) | 2.0 (−0.2 to 4.5) | 11 (9 to 12) | 21 (18 to 24) | 18 (16 to 20) | 39 (34 to 43) |
| Women | 31.1 (27.1 to 35.7) | 1.5 (−0.7 to 4.2) | 12 (10 to 13) | 20 (17 to 22) | 16 (14 to 18) | 36 (31 to 40) |
| P-value | 0.55 | 0.0006 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Age (years) | ||||||
| 18 to 40 | 30.1 (26.3 to 35.2) | 1 (−1 to 3.65) | 12 (10 to 13) | 21 (18 to 23) | 16 (14 to 18) | 37 (33 to 41) |
| 40 to 55 | 31.3 (27.6 to 35.8) | 2 (−0.4 to 4.6) | 12 (10 to 13) | 20 (17 to 23) | 17 (14 to 19) | 37 (32 to 41) |
| 55+ | 31.3 (28.4 to 35.2) | 1.9 (−0.3 to 4.4) | 11 (9 to 12) | 19 (17 to 22) | 17 (14 to 20) | 36 (32 to 41) |
| P-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | 0.45 |
| Subjective economic status | ||||||
| Easy | 30.1 (26.7 to 34.0) | 1.5 (−0.6 to 3.9) | 11 (10 to 12) | 21 (18 to 24) | 17 (15 to 20) | 38 (34 to 42) |
| Difficult | 32.1 (28.3 to 37.1) | 1.8 (−0.5 to 4.7) | 12 (10 to 13) | 19 (16 to 21) | 15 (13 to 18) | 34 (30 to 38) |
| P-value | <0.0001 | 0.0017 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Education level | ||||||
| Primary | 33.1 (29.3 to 38.9) | 3.1 (0.2 to 5.8) | 12 (10 to 13) | 17 (15 to 21) | 15 (12 to 18) | 33 (27 to 38) |
| Secondary | 32.0 (28.6 to 36.1) | 2.1 (−0.3 to 4.7) | 12 (10 to 13) | 19 (17 to 22) | 16 (13 to 18) | 35 (31 to 39) |
| Tertiary | 30.1 (26.6 to 34.5) | 1.3 (−0.7 to 3.9) | 12 (10 to 13) | 21 (18 to 23) | 17 (15 to 19) | 38 (33 to 42) |
| P-value | <0.0001 | <0.0001 | 0.47 | <0.0001 | <0.0001 | <0.0001 |
| Household size | ||||||
| 1 | 31.3 (27.6 to 36.2) | 1.6 (−0.7 to 4.4) | 12 (10 to 13) | 20 (17 to 22) | 16 (13 to 18) | 35 (31 to 39) |
| >1 | 31.1 (27.3 to 35.2) | 1.7 (−0.5 to 4.3) | 12 (10 to 13) | 20 (17 to 23) | 17 (14 to 19) | 37 (32 to 41) |
| P-value | 0.15 | 0.76 | 0.77 | 0.04 | <0.0001 | <0.0001 |
| Perceived health | ||||||
| Bad | 33.9 (30.4 to 38.6) | 2.3 (−0.2 to 5.3) | 12 (10 to 13) | 17 (14 to 19) | 14 (12 to 17) | 31 (27 to 35) |
| Good | 30.1 (26.7 to 33.9) | 1.4 (−0.6 to 3.9) | 11 (10 to 13) | 21 (19 to 23) | 17 (15 to 19) | 38 (35 to 42) |
| P-value | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 | <0.0001 |
Note:
*
Possible score ranges.
Abbreviations: BID, body image distortion; BMI, body mass index; IQR, interquartile range; PHY-QoL, physical dimension of QoL score; PSY/SOC-QoL, psychosocial dimension of QoL score; QoL, quality of life; SN, subjective norm.