Table A3b.

Negative binomial regression statistics for the 1994–2003 and the 1994–1998 exposure periods - FL.

Exposure period (Years)	Scaling factor (km)	Effect	Level (in kg)	Risk ratio	95% CI	p-value
1994–1998	4	Exposure: Level 2 vs. Level 1	[8.2e-07–0.0038] vs. [3.3e-17–8.2e-07]	0.97	(0.83, 1.12)	0.6477
		Exposure: Level 3 vs. Level 1	[0.0038–6.4] vs. [3.3e-17–8.2e-07]	1.22	(1.07, 1.40)	0.0028
		Exposure: Level 4 vs. Level 1	[6.4–70] vs. [3.3e-17–8.2e-07]	1.26	(1.09, 1.45)	0.0018
		Exposure: Level 5 vs. Level 1	[70–200,000] vs. [3.3e-17–8.2e-07]	1.03	(0.89, 1.20)	0.6756
1994–1998	8	Exposure: Level 2 vs. Level 1	[0.037–3.8] vs. [8.7e-07–0.037]	1.08	(0.94, 1.25)	0.2844
		Exposure: Level 3 vs. Level 1	[3.8–98] vs. [8.7e-07–0.037]	1.26	(1.10, 1.44)	0.0009
		Exposure: Level 4 vs. Level 1	[98–360] vs. [8.7e-07–0.037]	1.34	(1.17, 1.55)	<0.0001
		Exposure: Level 5 vs. Level 1	[360–320000] vs. [8.7e-07–0.037]	1.05	(0.90, 1.22)	0.5339
1994–1998	16	Exposure: Level 2 vs. Level 1	[23–160] vs. [0.12–23]	1.24	(1.08, 1.43)	0.0024
		Exposure: Level 3 vs. Level 1	[160–630] vs. [0.12–23]	1.27	(1.11, 1.45)	0.0005
		Exposure: Level 4 vs. Level 1	[630–1100] vs. [0.12–23]	1.26	(1.09, 1.46)	0.0019
		Exposure: Level 5 vs. Level 1	[1100–410,000] vs. [0.12–23]	0.98	(0.84, 1.14)	0.8043
1994–1998	24	Exposure: Level 2 vs. Level 1	[290–1100] vs. [2.2–290]	1.21	(1.06, 1.38)	0.0046
		Exposure: Level 3 vs. Level 1	[1100–1600] vs. [2.2–290]	1.26	(1.10, 1.44)	0.0007
		Exposure: Level 4 vs. Level 1	[1600–1900] vs. [2.2–290]	1.16	(1.00, 1.34)	0.0448
		Exposure: Level 5 vs. Level 1	[1900–440,000] vs. [2.2–290]	0.78	(0.67, 0.91)	0.0014
1994–2003	4	Exposure: Level 2 vs. Level 1	[9.8e-06–0.018] vs. [2e-13–9.8e-06]	0.96	(0.83, 1.11)	0.5606
		Exposure: Level 3 vs. Level 1	[0.018–19] vs. [2e-13–9.8e-06]	1.19	(1.04, 1.35)	0.0113
		Exposure: Level 4 vs. Level 1	[19–250] vs. [2e-13–9.8e-06]	1.20	(1.04, 1.39)	0.0116
		Exposure: Level 5 vs. Level 1	[250–230,000] vs. [2e-13–9.8e-06]	1.03	(0.89, 1.20)	0.6614
1994–2003	8	Exposure: Level 2 vs. Level 1	[0.17–11] vs. [2.9e-05–0.17]	1.00	(0.86, 1.16)	0.9911
		Exposure: Level 3 vs. Level 1	[11–270] vs. [2.9e-05–0.17]	1.19	(1.04, 1.36)	0.0105
		Exposure: Level 4 vs. Level 1	[270–1300] vs. [2.9e-05–0.17]	1.27	(1.10, 1.46)	0.0009
		Exposure: Level 5 vs. Level 1	[1300–370,000] vs. [2.9e-05–0.17]	1.06	(0.92, 1.23)	0.4385
1994–2003	16	Exposure: Level 2 vs. Level 1	[56–370] vs. [0.17–56]	1.23	(1.07, 1.42)	0.0043
		Exposure: Level 3 vs. Level 1	[370–1600] vs. [0.17–56]	1.17	(1.02, 1.35)	0.0271
		Exposure: Level 4 vs. Level 1	[1600–3900] vs. [0.17–56]	1.39	(1.20, 1.59)	<0.0001
		Exposure: Level 5 vs. Level 1	[3900–460,000] vs. [0.17–56]	1.05	(0.90, 1.22)	0.5115
1994–2003	24	Exposure: Level 2 vs. Level 1	[570–1800] vs. [3.9–570]	1.10	(0.96, 1.27)	0.1814
		Exposure: Level 3 vs. Level 1	[1800–4100] vs. [3.9–570]	1.24	(1.09, 1.42)	0.0013
		Exposure: Level 4 vs. Level 1	[4100–6200] vs. [3.9–570]	1.19	(1.03, 1.37)	0.0197
		Exposure: Level 5 vs. Level 1	[6200–500,000] vs. [3.9–570]	0.93	(0.80, 1.08)	0.3386