Table 2. Back pain prevalence and intensity, adults aged 50-plus years, by country and pooled, SAGE Wave 1.

	Back Pain Prevalence		Back Pain Intensity
	n	% (95% CI e )	n	Low	Moderate	High
China	11,525	22.0 (19.9,24.1)	2,490	18.5 (16.5,20.7)	77.4 (75.7,79.1)	4.1 (2.5,6.5)
Ghana	4,059	40.5 (38.1,42.8)	1,622	8.8 (7.0,11.0)	83.1 (80.5,85.4)	8.1 (6.4,10.2)
India	6,329	39.1 (36.6,41.7)	2,466	8.8 (7.4,10.5)	79.0 (76.7,81.1)	12.2 (10.5,14.2)
Mexico	2,103	35.5 (28.5,43.1)	746	22.0 (14.9,31.1)	74.2 (64.8,81.8)	3.9 (1.8,8.1)
Russian Fed a	2,973	55.7 (50.2,61.2)	1,565	19.9 (15.3,23.5)	72.0 (66.8,76.6)	8.1 (5.5,11.8)
Sth Africa b	2,720	38.5 (34.9,42.2)	1,019	13.5 (10.4,17.3)	82.3 (78.3,85.6)	4.3 (3.0,6.0)
Pooled	30,146	29.7 (28.1,31.4)	8,815	14.9 (13.6,16.2)	77.2 (75.8,78.5)	7.9 (6.9,9.2)

^aRussian Federation

^bSouth Africa

^eConfidence Interval

Intensity sample conditioned on prevalence