Parameter | 1998–2002 | 2006–2010 | P of coefficient equality test | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Estimate | SEb | 95%CIc | P value | Estimate | SEb | 95%CIc | P | ||||
For ophthalmologist | |||||||||||
Opt densityd | − 60.34 | 14.16 | [−88.09 | −32.59] | < .001 | −42.94 | 16.55 | [− 75.38 | − 10.50] | 0.01 | 0.43 |
Other physician densitye | 1.95 | 0.88 | [0.22 | 3.68] | 0.027 | 5.41 | 1.06 | [3.33 7.50] | <. 001 | 0.013 | |
Urban center | −1.92 | 1.32 | [−4.51 | 0.67] | 0.15 | 2.87 | 1.51 | [−0.09 | 5.83] | 0.06 | 0.018 |
Suburban | −1.24 | 0.58 | [−2.39 | −0.10] | 0.034 | 0.73 | 0.71 | [−0.66 | 2.13] | 0.3 | 0.033 |
others | reference | reference | NA | ||||||||
SES Indexf | 1.04 | 0.41 | [0.23 | 1.84] | 0.012 | 0.18 | 0.5 | [−0.79 | 1.15] | 0.72 | 0.18 |
For physicians other than ophthalmologists | |||||||||||
Opt densityd | − 143.69 | 126.77 | − 392.15 | 104.77 | 0.26 | 233.81 | 159.71 | −79.22 | 546.84 | 0.14 | 0.065 |
Other physician densitye | 5.27 | 7.89 | − 10.2 | 20.75 | 0.5 | 51.26 | 10.27 | 31.14 | 71.39 | <. 001 | <. 001 |
Urban center | −21.78 | 11.82 | −44.95 | 1.4 | 0.07 | 72.66 | 14.58 | 44.08 | 101.24 | <. 001 | <. 001 |
Suburban | −7.14 | 5.23 | −17.4 | 3.12 | 0.17 | −5.04 | 6.89 | −18.54 | 8.45 | 0.46 | 0.81 |
others | reference | reference | NA | ||||||||
SES Indexf | 7.51 | 3.68 | 0.29 | 14.73 | 0.041 | 10.89 | 4.78 | 1.52 | 20.25 | 0.023 | 0.58 |