Table 2.
Descriptive statistics of SF-8 MCS within the PARC Study sample versus normative health scores
| Variable | N | Sample Mean a (95 % CI) | Min-Max | Population Mean b,c | t-test unpaired p-value (two tailed) |
|---|---|---|---|---|---|
| Total | 1201 | 48.31 (47.74, 48.88) | 13–65 | 49.2 | 0.001 |
| Gender | |||||
| Male | 486 | 49.35 (48.46, 50.24) | 17–65 | 50.6 | 0.003 |
| Female | 715 | 47.61 (46.87, 48.35) | 13–65 | 48.0 | 0.358 |
| Age category | |||||
| 16–24 | 87 | 49.77 (47.63, 51.91) | 18–61 | 46.4 | 0.004 |
| 25–34 | 214 | 48.62 (47.23, 50.01) | 13–65 | 47.4 | 0.000 |
| 35–44 | 214 | 47.88 (46.56, 49.20) | 19–65 | 49.1 | 0.079 |
| 45–54 | 197 | 47.48 (46.02, 48.94) | 15–62 | 49.2 | 0.019 |
| 55–64 | 161 | 46.62 (44.92, 48.32) | 18–63 | 51.1 | 0.000 |
| 65–74 | 165 | 49.15 (47.70, 50.60) | 21–64 | 52.3 | 0.000 |
| 75 plus | 163 | 49.54 (48.16, 50.92) | 26–65 | 51.9 | 0.005 |
| NIMDM 2010 | |||||
| 1 -most deprived | 215 | 45.61 (44.02, 47.20) | 13–65 | - | - |
| 2 | 221 | 47.33 (45.94, 48.72) | 15–65 | - | - |
| 3 | 94 | 46.84 (44.77, 48.90) | 17–62 | - | - |
| 4 | 232 | 48.73 (47.47, 49.99) | 15–63 | - | - |
| 5 - least deprived | 439 | 50.23 (49.42, 51.03) | 19–65 | - | - |
SF-8 MCS Short-Form 8 Health Survey Mental Composite Score, PARC Physical Activity and the Rejuvenation of Connswater, NIMDM Northern Ireland Multiple Deprivation Measure [31]
a Bold sample mean values denote statistically significant (p < 0.05) difference to the population mean by the unpaired t-test (two-tailed)
b Population norms taken from Ware et al. [39]
c Age group of 18–24 years in population data