Table 2 Survey coverage

SADHS 1998

70.3 (66.7; 74.1)

SADHS 2003

54.0 (51.3; 56.9)

NIDS 2008

35.8 (34.1; 37.6)

NIDS 2010

27.9 (26.4; 29.5)

NIDS 2012

35.8 (33.9; 37.8)

NIDS 2014

31.2 (29.4; 33.1)

SABSSM 2005

48.7 (45.6; 52.1)

SABSSM 2008

27.0 (25.6; 28.6)

SABSSM 2012

25.6 (24.2; 27.0)

SANHANES 2012

33.6 (31.9; 35.4)

WHS 2003

52.6 (50.7; 54.5)

SADHS 2016

72.7 (69.1; 76.7)