Changes in pulmonary tuberculosis prevalence: evidence from the 2010 population survey in a populous province of China

Table 2 Prevalence rates of sputum positive TB cases, bacteriologically confirmed TB cases and all cases in Shandong, China, 2010

	No. of participants	Rates of sputum positive cases (per 100000)	Rates of bacteriologically confirmed cases (per 100000)	Rates of all cases (per 100000)
Crude	54279	22.1 (9.6–34.6)	36.8 (17.8–55.8)	337.1 (254.1–420.0)
Adjusted for all population^a		17.8 (8.3–17.5)	27.8 (14.8–28.0)	239.4 (179.9–298.9)
Adjusted for adults^a		21.4 (10.0–32.8)	33.5 (17.8–49.2)	285.8 (215.2–356.4)
Sex: Male^a	25406	29.5 (7.9–51.1)^b	43.3 (15.9–70.7)^b	388.0 (282.2–493.8)^b
Female^a	28873	5.4 (0.9–9.9)	15.7 (3.9–27.5)	183.4 (128.1–238.7)
Age: 15-64^a	46807	9.9 (1.4–18.3)	20.8 (5.0–36.6)	154.8 (113.9–195.6)
65 and older^a	7472	83.3 (17.2–149.4)^c	118.3 (35.0–201.7)^c	1429.9 (1011.4–1848.3)^c
Area: Urban^a	26101	9.0 (1.0–17.0)	9.0 (1.0–17.0)	139.1 (80.7–197.5)
Rural^a	28178	24.2 (4.8–43.6)	43.1 (17.0–69.2)^d	342.6 (242.4–442.8)^d

^aAdjusted for sampling errors and against China’s census population in 2010.
^bSignificantly higher than female of prevalence rates of sputum positive cases (x² = 9.702, P = 0.002), bacteriologically confirmed cases (x ² = 11.722, P = 0.001), and all TB cases (x ² = 32.378, P<0.001).
^cSignificantly higher than year 15–64 of prevalence rates of sputum positive cases (x² = 20.083, P<0.001), bacteriologically confirmed cases (x² = 22.128, P<0.001), and all TB cases (x ² = 307.665, P<0.001).
^dSignificantly higher than urban area of prevalence rates of bacteriologically confirmed cases (x ² = 6.323, P = 0.012) and all TB cases (x ² = 26.904, P<0.001).

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