Table II.

Showing drop in Hb levels

	Control	Intra-articular group	Intravenous group
Hb drop ≤ 1gm/dl	0	26	5
	(7.15) [7.15]	(11.92) [11.62]	(11.92) [4.02]
Hb drop > 1 gm/dl	21	9	30
	(13.85) [3.70]	(23.08) [8.59]	(23.08) [2.08]
			Chi-square statistic = 42.1535	P value < 0.00001 (Significant)

Chi-square table showing drop in haemoglobin between three groups. The resulting ’P’ value at < 0.00001 is very significant