Table 3.

Comparative analysis of the clinical profile of presentation.

Clinical profile	Time interval		p	OR	CI
	07/77–07/88 (n = 248)	08/88–02/00 (n = 454)
Age at primary episode (years) (mean ± DP/median)	8.8 ± 5.5/8.8	9.4 ± 3.1/9.0	0.0823
Gender (F/M)	1.2	1.01	0.9090	1.041	0.598–1.812
Large/small joints (%)	86.7/13.3	84.5/15.3	0.3548	1.084	0.744–1.580
ΣMR, MR+AR, AR+MR+MS, MR+MS /other associations (%)	94.2/5.8	95.6/4.4	0.3637	1.532	0.419–5.603

MS, mitral stenosis; MR, mitral regurgitation; AR, aortic regurgitation.