Demographic and cognitive characteristic

Dependent VariablesEthnic Minorities GroupEthnic MinoritiesStatistic
NMean (SD)NMean (SD)tdfP-valueCI 95%
Age2067.55 (6.19)2266.59 (8.71)–0.4140.000.69(–5.71 3.80)
Education RQF208.05 (13.26)2216.79 (20.89)1.6335.940.11(–2.12 19.59)
Education level202.30 (0.57)222.50 (0.80)0.9240.000.36(–0.24 0.64)
Years in the UK2065.70 (7.71)2339.84 (14.07)–7.6034.99< 0.001(–32.77 –18.95)
Percentage years in the UK2097.37 (7.94)2258.88 (18.63)–8.8428.95< 0.001(–47.38 –29.58)
English proficiency204.75 (0.55)233.48 (0.73)–6.5040.24< 0.001(–1.67 –0.88)
Multi-ethnic Acculturation Scale2085.05 (12.10)2364.61 (13.43)–5.2141.00< 0.001(–28.36 –12.52)
Neuropsychological tests
Cross-Linguistic Naming Test2039.90 (0.31)2138.05 (3.87)–2.1920.270.04(–3.62 –0.09)
M-ACE2027.15 (2.94)2321.39 (7.44)–3.4229.52< 0.001*(–9.20 –2.32)
RUDAS2028.30 (2.64)2224.95 (6.73)–2.1627.820.04*(–6.52 –0.17)
VSTMBT Perception209.90 (0.31)229.64 (1.14)–1.0524.350.31*(–0.78 0.26)
VSTMBT 2 Shapes2015.10 (1.83)2214.18 (2.22)–1.4540.000.15*(–2.19 0.36)
VSTMBT 2 Bindings2013.20 (2.19)2211.27 (2.55)–2.6240.000.01*(–3.42 –0.44)
VSTMBT Cost 22012.54 (10.12)2219.72 (16.39)1.7340.000.09*(–1.25 15.63)
VSTMBT 3 Shapes2013.65 (2.43)2212.91 (2.52)–0.9740.000.34*(–2.29 0.81)
VSTMBT 3 Bindings2011.75 (1.89)2210.23 (1.54)–2.8740.000.01*(–2.59 –0.45)
VSTMBT Cost 3209.67 (30.68)2218.4 (16.59)1.1640.000.27*(–6.45 23.90)

M-ACE: Mini Addenbrooke’s Cognitive Examination; RQF: Regulated Qualifications Framework; RUDAS: Rowland Universal Dementia Assessment Scale; VSTMBT: Visual Short-Term Memory Binding Test. * not all the neuropsychological variables were normally distributed, see Tables S1 and S2, for non-parametric Mann-Whitney U tests. There were a few missing data from the Ethnic Minorities Group: one participant did not report on age or percentage years in the UK, and one did not report on education. One did not contribute data on the Cross-Linguistic Naming Test or RUDAS, and one did not contribute data on the Cross-Linguistic Naming Test or the VSTMBT