Table 1

Binary logistic regression showing variables entered into the weighted score and derived score weights

	Number of cases with symptom	Beta	SE	P value	Weighting (beta/0.751)	Rounded weight
Ante-mortem diagnosis of diabetes	140	6.462	0.357	<0.001	8.6045273	9
Polyuria	265	1.542	0.583	0.008	2.05326232	2
Polydipsia	2539	1.406	0.353	<0.001	1.87217044	2
Confusion	1569	0.751	0.352	0.033	1	1
TB and chronic cough	944	−1.627	0.716	0.023	−2.1664447	−2
Chronic diarrhoea	992	−2.058	0.795	0.01	−2.7403462	−3
Constant	–	−7.114	0.357	<0.001	–	–