Table 1. Demographic and clinical characteristics of study patients from the Cape Town AIDS Cohort and the Swiss HIV Cohort Study by ethnicity.

	Cape Town AIDS Cohort N = 784		Swiss HIV Cohort Study N = 2030
	White	Non-white	White	Non-white
	N = 155 (19.8%)	N = 629 (81.2%)	N = 1812 (89.3%)	N = 218 (10.7%)
No. of CD4 counts (%)	606 (23)	1988 (77)	9624 (89)	1171 (11)
No. of deaths during follow up (%)	37 (24)	120 (19)	183 (10)	6 (3)
Median No. of CD4 counts per person (IQR)	5 (3-8)	3 (2-5)	8 (5-13)	9 (4-16)
Years of follow up (IQR)	1.16 (0.50-2.09)	1.03 (0.57-1.95)	1.33 (0.53-2.45)	0.65 (0.27-1.73)
Median age (IQR)	33 (28-42)	31 (25-37)	33 (28-41)	29 (25-33)
Age ≥40 years n (%)	43 (28)	119 (19)	511 (28)	22 (10)
Female n (%)	14 (9)	364 (58)	379 (21)	139 (64)
CD4 count at enrolment (cells/μl)
Median (IQR)	321 (188-495)	279 (174-423)	460 (310-620)	415 (279-580)
50-199	45 (29)	193 (31)	184 (10)	31 (14)
200-349	43 (28)	201 (32)	391 (22)	49 (22)
350-499	34 (22)	133 (21)	506 (28)	60 (28)
500-750	33 (21)	102 (16)	731 (40)	78 (36)

^*determined by first recorded CD4 below 750

IQR; interquartile range