Table 4

Comparisons of year 1 data for active (remained active to the end of year 3) v inactive team members (not active in year 3) (independent samples t tests)

Variable	Active	Inactive	p Value
Liver function tests:
Alkaline phosphatase (U/l)		83 (21)	76 (25)	0.231
Alkaline phosphatase (U/l)		n=313	n=23
Aspartate aminotransferase (U/l)		25 (10)	24 (9)	0.927
Aspartate aminotransferase (U/l)		n=313	n=24
Alanine aminotransferase (U/l)		36 (20)	38 (22)	0.694
Alanine aminotransferase (U/l)		n=313	n=24
Renal function tests:
Blood urea nitrogen (mmol/l)^6-150		5.7 (1.4)	5.7 (1.1)	0.660
Blood urea nitrogen (mmol/l)^6-150		n=315	n=24
Creatinine (μmol/l)^6-151		97 (18)	106 (8.8)	0.102
Creatinine (μmol/l)^6-151		n=315	n=24
Haematological tests:
White blood cells (×10⁹/l)		6.6 (2.1)	6.1 (1.3)	0.078
White blood cells (×10⁹/l)		n=313	n=24
Packed cell volume (volume fraction)		0.45 (0.02)	0.45 (0.02)	0.256
Packed cell volume (volume fraction)		n=312	n=24
Platelet count (×10⁹/l)		243 (53)	228 (48)	0.151
Platelet count (×10⁹/l)		n=314	n=24

↵6-150 mg/dl=2.81 (mmol/l).
↵6-151 mg/dl=μmol/(88 l).