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Table 3 Group demographics and differences between regions

From: Clinical prevalence of Lewy body dementia

Demographics North-East England East Anglia Group difference
Gender (PDD), males/females 78/23 35/14 χ2 = 6.0, p = 0.44
Gender (all PD), males/females 587/385 328/260 χ2 = 3.2, p = 0.07
Age (years) at PDD onset, mean (± SD) 75.6 (± 6.7) 78.3 (± 7.3) t = −2.1, p = 0.03
Age (years) at PD onset, mean (± SD) 70.3 (± 9.7) 73.1 (± 8.6) t = 5.8, p < 0.01
Age at midpoint of screening period (all PD), mean (± SD) 76.9 (± 7.2) 78.7  (± 6.9) t = 4.7, p < 0.01
  1. PD Parkinson’s disease, PDD Parkinson’s disease dementia, SD standard deviation