Table 4.

Results by income class. Percent correct/acceptable replies in % (mean, range) and number (mean, range). The income classes were upper middle (UM), lower middle (LM), and lower (L) resource countries

	Test 1		Test 2
Countries by income class	% (95% CI)	n (95% CI)	% (95% CI)	n (95% CI)	Relative accuracy (95% CI)
UM (non-web)	65.8 (63.7–67.9)	10.5 (10.2–10.9)	76.3 (74.4–78.2)	12.2 (11.9–12.5)	1.16 (1.10–1.23)
LM (non-web)	61.0 (57.9–64.3)	9.8 (9.3–10.3)	72.0 (69.1–75.1)	11.5 (11.1–12.0)	1.18 (1.09–1.27)
L (non-web)	47.4 (44.0–51.1)	7.6 (7.0–8.2)	61.8 (58.5–65.4)	9.9 (9.4–10.5)	1.30 (1.16–1.46)
UM (web)	64.1 (61.6–66.8)	10.3 (9.9–10.7)	71.0 (68.6–73.5)	11.4 (11.0–11.8)	1.11 (1.03–1.19)