Table S2. The blood lead levels of Chinese population in 2009/10.
| Sub group | Frequency |
Geometric mean (95% CI), μg/L |
P10 (95% CI), μg/L |
P25 (95% CI), μg/L |
Median (95% CI), μg/L |
P75 (95% CI), μg/L |
P90 (95% CI), μg/L |
P95 (95% CI), μg/L |
P99 (95% CI), μg/L |
| * The frequency is too low for bootstrap to resample. | |||||||||
| Total | 11,090 | 36.9 (30.3–44.9) |
17.6 (14.7–20.5) |
25.7 (22.3–29.1) |
37.3 (31.0–43.5) |
55.9 (40.0–71.9) |
83.9 (38.6–129.2) |
109.7 (46.4–173.0) |
211.6 (.–.)* |
| Age, years | |||||||||
| 6–11 | 1,525 | 35.4 (30.0–41.6) |
19.96 (17.1–22.8) |
26.8 (23.0–30.6) |
35.6 (30.6–40.6) |
49.1 (34.8–63.4) |
67.6 (36.8–98.5) |
81.96 (.–.)* |
112.6 (91.0–134.3) |
| 12–18 | 3,573 | 33.3 (26.1–42.6) |
16.8 (13.0–20.6) |
23.6 (19.2–28.0) |
33.8 (26.2–41.4) |
47.8 (26.8–68.8) |
70.7 (.–.)* |
89.6 (.–.)* |
151.5 (.–.)* |
| 19–39 | 3,533 | 35.9 (28.5–45.2) |
17.2 (13.2–21.2) |
25.3 (21.3–29.3) |
36.9 (29.9–44.0) |
55.0 (36.6–73.5) |
84.1 (34.2–134.1) |
109.2 (67.0–151.3) |
176.3 (.–.)* |
| 40–60 | 2,459 | 39.7 (33.1–47.6) |
17.8 (15.2–20.4) |
26.7 (23.8–29.5) |
39.7 (34.1–45.3) |
60.4 (45.2–75.7) |
92.0 (32.2–151.7) |
126.2 (.–.)* |
262.4 (.–.)* |
| Gender | |||||||||
| Female | 5,616 | 29.9 (23.6–38.0) |
14.6 (11.4–17.8) |
21.5 (18.1–25.0) |
30.3 (24.6–36.0) |
45.1 (28.5–61.6) |
69.1 (.– .)* |
88.8 (.–.)* |
166.8 (.–.)* |
| Male | 5,474 | 45.0 (38.0–53.3) |
22.7 (18.9–26.5) |
31.5 (28.0–35.0) |
44.3 (37.8–50.8) |
65.5 (47.1–83.8) |
96.3 (58.8–133.9) |
124.2 (70.0–178.5) |
225.9 (.–.)* |
| Region | |||||||||
| Eastern China | 8,010 | 31.9 (26.6–38.3) |
21.0 (.–.)* |
27.7 (13.6–41.8) |
43.1 (20.7–65.5) |
65.0 (19.4–110.7) |
92.2 (16.6–167.9) |
114.1 (64.4–163.8) |
208.5 (.–.)* |
| Central China | 1,376 | 43.4 (29.2–64.3) |
15.7 (12.5–19.0) |
23.6 (20.4–26.9) |
33.6 (29.4–37.7) |
47.0 (40.3–53.7) |
65.95 (44.6–87.4) |
83.2 (.–.)* |
200.1 (.–.)* |
| Western China | 1,704 | 63.8 (38.5–105.9) |
30.3 (.–.)* |
43.8 (.–.)* |
66.3 (20.2–112.3) |
93.0 (55.3–130.7) |
125.4 (94.9–155.9) |
147.8 (112.0–183.6) |
227.0 (.–.)* |
| City | |||||||||
| Beijing | 568 | 33.9 (32.1– 35.9) |
18.4 (16.2– 20.6) |
26.1 (24.5– 27.6) |
36.2 (34.7–37.8) |
49.8 (47.4–52.2) |
66.3 (61.2–71.5) |
75.9 (70.2–81.7) |
100.2 (81.1–119.2) |
| Chaozhou | 699 | 47.5 (45.5–49.6) |
26.8 (24.7–28.8) |
35.3 (33.5–37.2) |
45.97 (44.1–47.8) |
63.8 (60.0–67.6) |
83.9 (78.2–89.5) |
100.3 (85.97– 114.7) |
269.7 (165.0–374.5) |
| Chengde | 554 | 29.9 (28.4–31.5) |
15.8 (14.4–17.3) |
21.1 (19.9–22.3) |
30.4 (27.7–33.1) |
44.3 (41.1–47.5) |
54.7 (50.7–58.7) |
60.1 (51.4–68.8) |
81.8 (.–.)* |
| Dandong | 492 | 33.0 (31.3–34.8) |
19.4 (18.1–20.7) |
25.8 (24.4–27.2) |
33.8 (32.5–35.2) |
44.0 (40.7–47.2) |
56.2 (50.2–62.2) |
66.1 (56.5–75.6) |
83.9 (.–.)* |
| Haidong | 560 | 44.7 (42.3–47.3) |
22.4 (20.7–24.0) |
30.8 (28.6–33.0) |
42.9 (40.4–45.4) |
62.4 (56.9–67.9) |
95.5 (77.0–114.0) |
130.4 (114.5–146.3) |
177.9 (.–.)* |
| Heze | 313 | 9.8 (8.2–11.8) |
2.3 (0.9–3.6) |
5.9 (4.3–7.6) |
13.9 (11.9–15.8) |
23.5 (20.1–26.8) |
33.1 (28.2–38.0) |
41.3 (29.6–53.0) |
66.4 (.–.)* |
| Jiaozuo | 463 | 60.3 (56.9–64.1) |
32.8 (30.1–35.5) |
40.6 (37.3–43.9) |
57.5 (53.2–61.8) |
82.5 (76.8–88.3) |
108.3 (98.9–117.7) |
135.7 (93.3–178.1) |
311.1 (.–.)* |
| Jinan | 465 | 22.7 (20.9–24.7) |
8.6 (6.5–10.7) |
16.6 (14.7–18.4) |
25.8 (23.6–27.9) |
36.4 (34.4–38.4) |
47.0 (43.4–50.5) |
56.8 (50.2–63.3) |
71.0 (30.9–111.2) |
| Jinzhou | 566 | 31.3 (29.9–32.8) |
17.8 (16.7–19.0) |
23.6 (22.1–25.1) |
30.1 (28.7–31.5) |
42.2 (39.3–45.2) |
55.3 (51.3–59.4) |
63.9 (55.2–72.7) |
81.9 (.–.)* |
| Langfang | 549 | 36.8 (34.6–39.2) |
19.9 (17.9–22.0) |
27.9 (26.3–29.5) |
37.6 (35.3–40.0) |
51.8 (47.7–55.9) |
68.1 (64.2–72.0) |
75.9 (70.6–81.2) |
110.9 (.–.)* |
| Lianyungang | 455 | 34.5 (33.1–36.0) |
22.0 (20.7–23.3) |
27.6 (26.4–28.8) |
34.9 (33.5–36.3) |
43.95 (40.9–47.0) |
55.4 (52.5–58.3) |
60.5 (55.9–65.0) |
76.6 (.–.)* |
| Pingdingshan | 467 | 32.4 (30.5–34.4) |
18.4 (17.0–19.8) |
22.6 (21.4–23.8) |
30.8 (28.4–33.1) |
44.5 (41.4–47.6) |
54.1 (48.1–60.1) |
72.7 (43.9–101.5) |
151.9 (.–.)* |
| Puyang | 446 | 39.96 (37.4–42.7) |
19.4 (18.3–20.5) |
25.1 (23.4–26.9) |
39.1 (34.4–43.8) |
62.8 (57.3–68.2) |
83.6 (75.1–92.1) |
109.1 (92.7–25.5) |
144.8 (.–.)* |
| Qingdao | 313 | 20.4 (18.1–23.0) |
7.1 (5.3–9.0) |
13.2 (11.2–5.2) |
21.9 (18.4–25.4) |
35.4 (29.2–41.6) |
56.1 (50.1–62.1) |
61.3 (52.7–69.9) |
97.0 (.–.)* |
| Qingyuan | 530 | 83.1 (76.3– 90.6) |
34.7 (32.1–37.3) |
47.0 (43.4–50.6) |
76.9 (67.8–86.0) |
136.7 (113.5–159.8) |
227.6 (188.1–267.0) |
298.6 (161.3–435.8) |
604.7 (.–.)* |
| Shenyang | 247 | 25.9 (24.3–27.5) |
14.9 (13.4–16.4) |
19.3 (17.2–21.4) |
27.4 (25.0–29.7) |
33.7 (30.5–36.9) |
44.1 (41.3– 46.9) |
47.8 (43.8–51.2) |
66.1 (.–.)* |
| Shijiazhuang | 543 | 32.1 (30.8–33.3) |
19.4 (18.0–20.7) |
25.1 (23.5–26.6) |
31.3 (29.5–33.1) |
41.6 (39.8–43.4) |
52.9 (48.5– 57.2) |
58.9 (54.3–63.6) |
80.1 (.–.)* |
| Suzhou | 522 | 33.3 (31.7–35.1) |
18.9 (17.1–20.6) |
25.2 (23.7–26.6) |
33.5 (31.7–35.4) |
45.4 (43.5–47.2) |
57.1 (50.8– 63.3) |
68.8 (61.8–75.8) |
85.2 (68.1–102.3) |
| Taizhou | 549 | 35.7 (34.4–37.0) |
23.2 (21.7–24.8) |
28.2 (27.1–29.4) |
35.6 (34.1–37.0) |
44.2 (42.5–46.0) |
55.1 (51.4– 58.8) |
62.7 (56.6–68.9) |
84.3 (.–.)* |
| Xining | 1,144 | 76.0 (73.4–78.6) |
41.6 (38.8–44.4) |
57.4 (54.8–60.0) |
76.3 (73.5–79.1) |
100.4 (96.4–104.4) |
131.7 (122.8– 140.6) |
157.1 (139.7–174. 6) |
261.2 (182.8–339.7) |
| Zhanjiang | 645 | 22.9 (21.1–24.9) |
10.6 (9.0–12.3) |
17.7 (16.5–18.9) |
26.1 (24.8–27.5) |
36.9 (34.4–39.4) |
48.8 (42.7– 55.0) |
60.7 (54.9–66.5) |
91.5 (32.5–150.5) |