TABLE II.

Survival function (proportion of injured workers not reinjured), by timescale

Quarter	Calendar quarters			Quarters with any wages			FTE quarters (hours worked/520)
	N at risk	Survival Function	95% CI	N at risk	Survival function	95% CI	N at risk	Survival function	95% CI
0	43,114	1.00		43,114	1.00	-	43,114	1.00
1	42,733	0.97	0.97–0.98	41,060	0.96	0.96–0.96	36,165	0.95	0.95–0.95
4	40,232	0.91	0.91–0.92	33,704	0.88	0.88–0.88	27,283	0.84	0.84–0.84
8	35,590	0.85	0.84–0.85	25,123	0.78	0.78–0.79	18,915	0.74	0.73–0.74
12	30,161	0.79	0.79–0.80	18,272	0.71	0.71–0.72	13,114	0.66	0.66–0.67
24	17,080	0.69	0.69–0.70	6,450	0.57	0.57–0.58	4,299	0.52	0.52–0.53
36	6,930	0.63	0.63–0.64	1,332	0.49	0.48–0.50	1,008	0.45	0.44–0.46
48	576	0.59	0.58–0.60	38	0.44	0.42–0.46	146	0.38	0.37–0.40
60	12	0.56	0.54–0.58	1	0.41	0.36–0.47	28	0.34	0.30–0.37

Abbreviations: CI, confidence interval; FTE, full-time equivalent.