Table 4.

Loadings for factors identified after varimax rotation of the results of principal component analysis.

	Factor 1	Factor 2	Factor 3	Factor 4
Age	−0.01	0.86⋆	0.02	0.06
Sex	−0.06	−0.17	0.14	0.83⋆
Body mass index	0.26	−0.63⋆	−0.26	0.01
Taking metformin	0.59⋆	0.10	−0.24	−0.01
Pulse rate	0.36⋆	0.08	−0.62⋆	−0.17
Serum creatinine	0.06	0.32	−0.16	0.77⋆
Serum bicarbonate	−0.19	0.15	0.51⋆	−0.11
Fasting plasma glucose	0.66⋆	−0.18	0.16	0.08
Fasting plasma lactate	0.70⋆	−0.18	−0.12	−0.07
Taking β-adrenoceptor blocker	0.30	0.17	0.69⋆	0.02
Variance explained (%)	20.3	13.5	11.7	11.1

^⋆Loading > ± 0.34.