TABLE 2.

Odds ratios in multiple logistic regression modeling of surgical coverage for cataract-related moderate vision impairment or worse (< 20/63), severe vision impairment or worse (< 20/200) and blindness (< 20/400) within the 2014 study sites. Age in years and education level were modeled as continuous variables.

Study Site	Surgical Coverage Percentage (95%Confidence Interval)	Odds Ratio (P Value) a
		Female Sex	Age (years)	Education (level)
Beijing
<20/63	48.2 (42.1–54.3)	1.13 (0.670)	0.99 (0.522)	1.19 (0.326)
<20/200	83.6 (76.3–90.8)	0.79 (0.651)	0.97 (0.404)	1.10 (0.713)
<20/400	88.1 (82.4–93.8)	0.94 (0.921)	0.95 (0.374)	1.10 (0.775)
Jiangsu
<20/63	29.7 (26.3–33.0)	0.90 (0.695)	0.96 (0.002) **	1.22 (0.088)
<20/200	57.4 (51.3–63.6)	0.86 (0.716)	0.98 (0.216)	1.10 (0.713)
<20/400	68.5 (62.3–74.6)	1.20 (0.720)	0.95 (0.074)	1.22 (0.499)
Guangdong
<20/63	29.7 (25.6–33.0)	1.13 (0.392)	0.99 (0.280)	1.03 (0.755)
<20/200	63.4 (56.6–70.2)	0.64 (0.078)	0.98 (0.080)	0.97 (0.852)
<20/400	80.3 (73.3–87.3)	0.48 (0.112)	0.98 (0.172)	0.87 (0.478)
Heilongjiang
<20/63	22.9 (17.8–27.9)	0.84 (0.562)	0.99 (0.731)	0.97 (0.824)
<20/200	59.4 (50.2–68.6)	0.72 (0.491)	1.00 (0.971)	0.96 (0.892)
<20/400	66.3 (56.4–76.1)	0.62 (0.372)	1.01 (0.689)	0.96 (0.903)
Jiangxi
<20/63	33.8 (29.7–37.8)	0.86 (0.467)	0.98 (0.256)	1.21 (0.101)
<20/200	77.9 (70.8–85.1)	0.56 (0.230)	0.96 (0.150)	1.09 (0.715)
<20/400	89.7 (83.8–95.6)	0.38 (0.233)	0.96 (0.413)	1.28 (0.488)
Hebei
<20/63	31.5 (25.8–37.2)	0.97 (0.900)	0.98 (0.080)	1.23 (0.045) *
<20/200	70.8 (63.6–78.1)	0.68 (0.342)	0.95 (0.055)	1.07 (0.641)
<20/400	83.3 (76.6–89.8)	0.71 (0.526)	1.00 (0.950)	1.15 (0.538)
Ningxia
<20/63	31.3 (23.9–38.8)	1.47 (0.229)	0.99 (0.576)	1.49 (0.011) *
<20/200	64.6 (55.0–74.3)	1.07 (0.893)	1.00 (0.901)	1.76 (0.047) *
<20/400	73.5 (65.3–81.8)	1.19 (0.791)	1.00 (0.937)	2.29 (0.127)
Chongqing
<20/63	32.0 (24.2–39.8)	1.10 (0.636)	1.04 (0.001) **	1.37 (0.034) *
<20/200	69.3 (61.0–77.6)	0.93 (0.792)	1.01 (0.711)	1.53 (0.011) *
<20/400	75.2 (67.3–83.1)	0.85 (0.564)	0.99 (0.451)	1.43 (0.048) *
Yunnan
<20/63	25.1 (22.8–27.4)	1.05 (0.713)	0.95 (0.002) **	0.89 (0.583)
<20/200	43.3 (38.2–48.5)	0.99 (0.962)	0.92 (0.004) **	1.33 (0.032) *
<20/400	48.0 (41.8–54.2)	0.93 (0.744)	0.91 (0.002) **	1.51 (0.551)
All Study Sites
<20/63	30.6 (28.8–32.4)	1.05 (0.517)	0.99 (0.012) *	1.23 (<0.001) **
<20/200	62.7 (59.7–65.8)	0.90 (0.334)	0.97 (<0.001) **	1.31 (<0.001) **
<20/400	71.7 (68.5–74.9)	0.96 (0.750)	0.96 (<0.001) **	1.39 (<0.001) **

^aStatistical significance at the P ≤0.050 level is indicated by 1 asterisk (*) and significance at the P ≤0.010 level by 2 asterisks (**).