Extended Data Fig. 2: Baseline characteristics in the primary cohort training, development and test datasets.
From: A digital biomarker of diabetes from smartphone-based vascular signals
Primary cohort sample size was 53,870 individual people. Where data was only available for subgroups of the full cohort, subgroup sample size is denoted by N. Differences in means of continuous variables between 2 groups were compared using two-sample t-test. Differences in means of continuous variables between 3+ groups were compared using one-way ANOVA. Differences in proportions of categorical variables between the 2+ groups were compared using Chi-Squared. Tests of significance were 2 sided. a, b, c: Each subscript letter denotes a subset of dataset categories whose column proportions do not differ significantly from each other at the 0.05 level. Post-hoc analysis was performed using Fisher’s least significant differences to compare means of continuous variables between groups. Abbreviations: SD: Standard deviation; CAD: Coronary artery disease; CHF: Congestive heart failure; COPD: Chronic obstructive pulmonary disease; HR: Heart rate, MI: Myocardial Infarction; PVD: Peripheral Vascular Disease.
