Table 2.
Normative values of subjective quality of life domain scores by age groups*.
| Physical health | Psychological health | Social relations Domain | Environment domain | General facet on health & OQOL | |
|---|---|---|---|---|---|
| Age groups*:yrs: Males** | Mean(SD) [95% C.I] |
Mean(SD) [95% C.I] |
Mean(SD) [95% C.I] |
Mean(SD) [95% C.I] |
Mean(SD) [95% C.I] |
| 14-15: N = 230 | 75.3(16.3) [73.1-77.4] |
66.8(17.5) [64.5-69.2] |
75.8(21) [73.0-78.5] |
74.9(17.5) [72.6-77.3] |
73.8(24) [70.7-76.9] |
| 16-17: N = 1338 | 72.5(15.6) [71.6-73.3] |
65.4(17.2) [64.2-66.3] |
74.4(22) [73.3-75.6] |
73.5(17.1) [72.0-74.5] |
71.8(22) [71.6-73.9] |
| 18-19: N = 527 | 69.0(15.5) [67.7-70.4] |
64.4(17.1) [62.9-65.9] |
73.6(22) [71.7-75.4] |
70.5(17.6) [68.9-72.1] |
69.9(23) [68.0-71.9] |
| 20-23: N = 62 | 67.3(13.3) [63.8-70.8] |
59.9(16.8) [55.6-64.3] |
70.4(20) [65.2-75.6] |
67.0(17.9) [62.3-71.7] |
65.5(22) [60.0-71.0] |
| Total: N = 2157 | 71.8(15.7) [71.1-72.5] |
65.1(17.2) [64.4-65.9] |
74.2(21) [73.3-75.2] |
72.8(17.4) [71.9-73.5] |
72.0(23) [71.0-72.9] |
| Adjusted scores (SE): All males*** | 71.1(0.34) [70.4 - 71.7] |
63.7(0.33) [63.1 - 64.4] |
73.5(0.46) [72.6 - 74.4] |
71.7(0.37) [70.9 - 72.4] |
70.5(0.45) [69.6 - 71.4] |
| Females** | Physical health | Psychological health | Social relations | Environment domain | General facet on health & OQOL |
| 14-15: N = 234 | 73.2(15.1) [71.2-75.2] |
61.1(18.0) [58.8-63.5] |
74.9(19) [72.3-77.4] |
71.7(18.0) [69.3-74.1] |
72.7(22) [69.8-75.5] |
| 16-17: N = 1432 | 69.3(16.4) [68.4-70.1] |
59.8(17.7) [58.9-60.7] |
71.7(21) [70.6-72.9] |
70.5(18.7) [69.5-71.5] |
69.3(23) [68.1-70.5] |
| 18-19: N = 554 | 64.6(16.8) [63.2-66.0] |
56.7(17.6) [55.3-58.2] |
69.3(22) [67.4-71.2] |
64.9(19.6) [63.3-66.7] |
65.7(24) [63.8-67.7] |
| 20-23: N = 56 | 61.4(17.5) [56.4-66.3] |
51.2(20.4) [45.7-56.7] |
67.6(24) [61.1-74.2] |
60.9(20.3) [55.3-66.5] |
57.1(26) [50.2-64.1] |
| Total: N = 2276 | 68.4(16.6) [67.7-69.0] |
58.9(17.0) [58.2-59.7] |
71.3(21) [70.5-72.2] |
69.0(19.1) [68.2-69.8] |
68.5(23) [67.5-69.4] |
| Adjusted scores (SE): All females*** | 69.7(0.33) [69.1 - 70.4] |
60.6(0.33) [59.9 - 61.3] |
72.6(0.46) [71.7 - 73.5] |
70.7(0.36) [69.9 - 71.4] |
70.5(0.32) [69.7 - 71.4] |
| All participants: N = 4276 |
70.0(16.3) [69.5-70.5] |
61.9(17.8) [61.4-62.5] |
72.8(21) [72.1-73.4] |
70.8(18.4) [70.3-71.4] |
70.2(23) [69.5-70.9] |
| Adjusted scores (SE): All participants*** | 70.4(0.24) [69.9 - 70.9] |
62.2(0.23) [61.7 - 62.6] |
73.1(0.32) [72.4 - 73.7] |
71.2(0.26) [70.7 - 71.7] |
70.5(0.32) [69.9 - 71.1] |
* Using the 0-100% scoring method: Mean (SD) [95% Confidence Intervals]
* In all domains and for both sexes, quality of life decreased with age, such that those aged 14-15 and 16-17 had significantly higher scores than those aged 18-19 and 20-23: KWχ2 = 13.9 - 93.4, df = 3, P < 0.001..
** In all domains, males had significantly higher QOL than females: Mann-Whitney U = 1859917 - 2262080, Z = 5.2 - 11.6, P < 0.0001.
*** Adjusted for age, father's occupation, depression and anxiety scores.