Table 2 Multivariable regression analysis with factors associated with the children and caregivers’ quality of life.
Variables | Children HRQOL | Caregivers RAND 36 | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
IDQOL | CDLQI | Physical health | Mental health | |||||||||
IRR | 95% CI | P-value | IRR | 95% CI | P-value | IRR | 95% CI | P-value | IRR | 95% CI | P-value | |
Age of child (years) | 1.02 | [0.98, 1.06] | 0.44 | 0.99 | [0.98, 1.00] | 0.02 | 1.01 | [1.00, 1.01] | 0.03 | 1.00 | [0.99, 1.01] | 0.44 |
Gender | ||||||||||||
Male | 1(Ref) | |||||||||||
Female | 1.09 | [0.93, 1.27] | 0.31 | 0.99 | [0.94, 1.05] | 0.80 | 0.99 | [0.96, 1.03] | 0.69 | 1.00 | [0.94, 1.06] | 0.94 |
Disease duration (years) | 1.01 | [0.98, 1.05] | 0.51 | 1.00 | [1.00, 1.01] | 0.16 | 1.00 | [0.99, 1.00] | 0.44 | 1.00 | [0.99, 1.01] | 0.60 |
Disease severity* | ||||||||||||
Mild | 1(Ref) | |||||||||||
Moderate | 1.42 | [1.20, 1.67] | p < 0.001 | 1.08 | [1.02, 1.14] | 0.01 | 0.98 | [0.94, 1.02] | 0.35 | 0.97 | [0.90, 1.05] | 0.49 |
Severe | 1.72 | [1.32, 2.24] | p < 0.001 | 1.05 | [0.96, 1.15] | 0.29 | 0.94 | [0.89, 0.99] | 0.03 | 1.03 | [0.93, 1.15] | 0.57 |
Ethnicity | ||||||||||||
Chinese | 1 (Ref) | |||||||||||
Indian | 1.12 | [0.91, 1.38] | 0.30 | 1.02 | [0.95, 1.11] | 0.56 | 0.93 | [0.88, 0.97] | 0.003 | 1.00 | [0.90, 1.10] | 0.97 |
Malay | 1.28 | [0.91, 1.80] | 0.15 | 1.01 | [0.94, 1.08] | 0.82 | 0.95 | [0.88, 1.02] | 0.13 | 1.03 | [0.89, 1.20] | 0.65 |
Others | 1.28 | [0.90, 1.81] | 0.17 | 1.03 | [0.93, 1.14] | 0.58 | 1.03 | [0.96, 1.11] | 0.41 | 1.04 | [0.88, 1.23] | 0.67 |
Educational attainment | ||||||||||||
Polytechnic and professional | 1 (Ref) | |||||||||||
Primary and secondary | 1.16 | [0.90, 1.49] | 0.27 | 1.01 | [0.94, 1.09] | 0.79 | 1.01 | [0.96, 1.06] | 0.72 | 0.99 | [0.90, 1.08] | 0.77 |
University | 0.95 | [0.79, 1.13] | 0.54 | 0.99 | [0.93, 1.05] | 0.72 | 0.99 | [0.95, 1.03] | 0.58 | 0.99 | [0.92, 1.07] | 0.82 |
Number of children in family | 1.00 | [0.90, 1.11] | 0.95 | 1.02 | [0.98, 1.05] | 0.42 | 0.99 | [0.97, 1.01] | 0.47 | 0.97 | [0.93, 1.01] | 0.19 |
Type of housing | ||||||||||||
HDB 1–3 rooms | 1 (Ref) | |||||||||||
HDB 4–5 rooms | 0.95 | [0.71, 1.28] | 0.76 | 1.01 | [0.94, 1.10] | 0.73 | 1.04 | [0.98, 1.10] | 0.21 | 1.09 | [0.97, 1.23] | 0.17 |
Private housing (condo, landlord) | 1.01 | [0.71, 1.44] | 0.95 | 1.01 | [0.92, 1.11] | 0.84 | 1.09 | [1.02, 1.17] | 0.01 | 1.10 | [0.96, 1.26] | 0.19 |
Children’s HRQOL~ | 0.99 | [0.99, 1.00] | p < 0.001 | 0.98 | [0.97, 0.99] | p < 0.001 |