Table 1.

Characteristics of Indigenous and non-Indigenous patients during treatment with metformin

Characteristic	Indigenous	Non-Indigenous
n	50	120
Age (years)	55 (48–62)	65 (59–74)**
Bodyweight (kg)	85 (74–95)	86 (75–102)
Body mass index (kg m−2)	29 (27–35)	30 (26–34)
Creatinine clearance (l h−1)	4.3 (3.4–5.6)	4.0 (2.8–4.9)*
Metformin dosage (mg day−1)†	1500 (500−3000)	2000 (250–3000)
Haemoglobin A1C (%)	8.5 (7.1–10.4)	7.2 (6.5–7.8)**
Lactate (mmol l−1)	1.55 (1.20–1.88)	1.60 (1.35–2.10)
Vitamin B12 (pmol l−1)†	306 (105–920)	–

The data are shown as the median and interquartile range.

^*P < 0.05,

^**P < 0.001.

^†Data are shown as the median and range.