Table 3.

The “dizzy feeling” complaint prevalence according to the various age groups in the population of the city of São Paulo.

							Age
Have you ever felt dizzy?	Total		18 to 25 years		26 to 35 years		36 to 45 years		46 to 55 years		56 to 65 years		Over 65 years
	n	%	n	%	n	%	n	%	n	%	n	%	n	%
Yes	831	42	117	42	166	41	128	37	158	49	118	43	144	44
No	1129	58	161	58	238	59	221	63	167	51	155	57	184	56
Sample Base	1960		278		404		349		325		273		328

Chi-squared test
	Value	DF	P
Pearson's chi-squared	12.705a	6	0,048
Odds ratio	13,822	6	0,032
Linear by linear association	1,275	1	0,259

n: Sample size; % Percentage of the sample; DF: Difference; p: Statistical significance (two-tails); a: 2 cells (14.3%) expected count less than 5. The minimum expected count is 1.27.