Table 2.

Differences in proportion of measles IgG seroprevalence among young adults in Israel, by gender and year of recruitment (1987, 1990 and 1996 compared to 2007)

	Year	Absolute difference (%)	95% CI of difference (%)	P value (χ2 test)
Males	1987 vs. 2007	−12.3	−19.4 – (−)5.2	0.001
1990 vs. 2007	−0.2	−6.6 – 6.3	0.96
1996 vs. 2007	8.8	3.6 – 14.0	<0.001
Females	1987 vs. 2007	−12.5	−20.2 – (−)4.9	0.002
1990 vs. 2007	1.3	−5.2 – 7.8	0.69
1996 vs. 2007	12.1	7.1 – 17.1	<0.001