Table 4

Final before enrolment LME results

Parameter	Estimate	SE	95% CI	T
−2 restricted log likelihood: 24 603.78 Month: F(1, 568.00)=198.82; p<0.001 Group: F(1, 549.00)=0.01; p=0.94 Site: F(14, 549.00)=8.47; p<0.001 Decade of birth: F(4, 549.00)=2.60; p=0.04
Intercept (baseline)	2.80	0.30	(2.20, 3.39)	9.20*
Month	0.15	0.01	(0.13, 0.17)	14.10*
UCare	0.01	0.11	(−0.20, 0.22)	0.08
Partics	Reference
Site 1	−0.10	0.46	(−1.00, 0.81)	−0.21
Site 2	1.12	0.38	(0.38, 1.86)	2.98*
Site 3	1.21	0.28	(0.65, 1.76)	4.29*
Site 4	0.62	0.32	(−0.01, 1.25)	1.93+
Site 5	1.50	0.28	(0.95, 2.06)	5.33*
Site 6	N/A	N/A	N/A	N/A
Site 7	0.72	0.27	(0.20, 1.24)	2.72*
Site 8	0.11	0.41	(−0.70, 0.92)	0.28
Site 9	0.43	0.29	(−0.15, 1.01)	1.46
Site 10	−0.18	0.29	(−0.75, 0.40)	−0.61
Site 11	0.10	0.31	(−0.51, 0.72)	0.33
Site 12	−0.84	0.48	(−1.80, 0.11)	−1.74+
Site 13	0.26	0.27	(−0.28, 0.79)	0.95
Site 14	0.25	0.28	(−0.30, 0.79)	0.89
Site 15	−1.46	0.46	(−2.36 to 0.55)	−3.16*
Site 16	Reference
Born: 1940s and 1950s	0.52	0.22	(0.09, 0.94)	2.38*
Born: 1960s	0.16	0.22	(−0.27, 0.58)	0.73
Born: 1970s	0.10	0.22	(−0.34, 0.54)	0.43
Born: 1980s	0.20	0.23	(−0.26, 0.65)	0.84
Born: 1990s and 2000s	Reference