. 2005 Aug;54(8):1121–1125. doi: 10.1136/gut.2004.049460

Table 2.

Sensitivity analysis of lymphoma risk when individual studies were excluded from the analysis

Study excluded	SIR (95% CI)	Test of heterogeneity p value*
Connell¹⁴	5.21 (2.59–9.35)	0.09
Kinlen¹²	3.64 (1.65–6.94)	0.03
Farrell¹⁵	3.49 (1.58–6.66)	0.12
Lewis¹	5.02 (2.39–9.27)	0.03
Fraser ¹⁶	4.03 (1.72–7.98)	0.01
Korelitz¹⁷	3.95 (1.69–7.84)	0.01

SIR, standardised incidence ratio (expected/observed).

*p<0.05 implies there is significant heterogeneity among the studies included in the analysis.