Table 6.

Comparison of absolute risk of MS per 100,000 population with 95% confidence intervals by age at immigration: age 0 to 14 versus older ages

AAI	At risk population	MS	Risk	95% CI	Significance
Total	696,735	258	37.03	32.64–41.84
0–14	250,631	56	22.34	16.88–29.02	Reference
15–19	52,335	30	57.32	38.68–81.84	+
15–24	131,907	73	55.34	43.38–69.60	+
15–29	218,185	129	59.12	49.36–70.25	+
15–34	292,784	168	57.38	49.03–66.74	+
15–39	350,778	189	53.88	46.47–62.13	+
15–44	388,338	200	51.50	44.61–59.16	+
15–49	408,856	201	49.16	42.60–56.45	+
15–54	420,522	202	48.04	41.64–55.14	+
15+	446,104	202	45.28	39.25–51.98	+

UKI immigrants (Group II) with MS onset after migration who entered Australia in or after 1947 and were age 0–79 in 1981, Four States combined