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Table 1 Crude and Weighted Numbers and Percentages of the Characteristics of People Who Used Methamphetamine

From: Risk factors associated with infection of blood-borne virus among people who used methamphetamine

Variable

Overall

Blood Borne Virus Positive

Blood Borne Virus Negative

P-valuea

N (%)

Weighted frequency (%)

N (%)

Weighted frequency (%)

N (%)

Weighted frequency (%)

Number

1132

11,996,319

125 (11)

1,298,339 (11)

1007 (89)

10,697,980 (89)

 

Gender

      

0.457

 Female

406 (36)

4,187,779 (35)

43 (34)

398,993 (31)

363 (36)

3,788,786 (35)

 

Age

      

< 0.001

 20–29 years

187 (17)

1,779,073 (15)

4 (3)

68,424 (5)

183 (18)

1,710,649 (16)

 

 30–39 years

319 (28)

2,968,405 (25)

22 (18)

162,889 (13)

297 (29)

2,805,516 (26)

 

 40–49 years

330 (29)

3,554,951 (30)

35 (28)

405,851 (31)

295 (29)

3,149,100 (29)

 

 50–59 years

296 (26)

3,693,889 (31)

64 (51)

661,174 (51)

232 (23)

3,032,716 (28)

 

Race

      

0.068

 Non-Hispanic White

724 (64)

9,381,391 (78)

81 (65)

1,042,032 (80)

643 (64)

8,339,359 (78)

 

 Non-Hispanic Black

65 (6)

322,951 (3)

14 (11)

65,729 (5)

51 (5)

257,221 (2)

 

 Hispanic/Other

343 (30)

2,291,977 (19)

30 (24)

190,577 (15)

313 (31)

2,101,400 (20)

 

Poverty index

      

0.001

  > =2

460 (41)

6,853,711 (57)

26 (21)

454,186 (38)

434 (43)

6,399,526 (62)

 

 1 to 1.9

325 (29)

2,749,419 (23)

39 (31)

392,263 (33)

286 (28)

2,357,156 (23)

 

 Below threshold

289 (26)

1,902,201 (16)

50 (40)

351,510 (29)

239 (24)

1,550,691 (15)

 

 Missing

58 (5)

490,988 (4)

10 (8)

100,380 (8)

48 (5)

390,608 (4)

 

Health insurance

      

0.260

 No

409 (36)

3,532,006 (29)

50 (40)

451,655 (35)

359 (36)

3,080,350 (29)

 

Healthcare access

      

0.353

 No

277 (24)

2,606,354 (22)

30 (24)

331,797 (26)

247 (25)

2,274,556 (21)

 

Education

      

0.007

  < 12 High School

259 (23)

2,059,325 (17)

39 (31)

385,837 (30)

220 (22)

1,673,488 (16)

 

Sexual partner

      

0.209

  < 2

825 (73)

9,005,285 (75)

82 (66)

899,510 (69)

743 (74)

8,105,775 (76)

 

  > =2

299 (26)

2,947,253 (25)

39 (31)

379,316 (29)

260 (26)

2,567,937 (24)

 

 Missing

8 (1)

43,782 (0)

4 (3)

19,513 (2)

4 (0)

24,269 (0)

 

Sexual identity

      

0.001

 Heterosexual

1060 (94)

11,287,813 (94)

106 (85)

1,081,527 (83)

954 (95)

10,206,286 (95)

 

 Other

70 (6)

697,104 (6)

18 (14)

210,072 (16)

52 (5)

487,032 (5)

 

 Missing

2 (0)

11,402 (0)

1 (1)

6740 (1)

1 (0)

4662 (0)

 

Number of drug use

      

< 0.001

 1 (only methamphetamine)

97 (9)

856,452 (7)

7 (6)

40,539 (3)

90 (9)

815,912 (8)

 

 2 (methamphetamine + heroin or cocaine)

828 (73)

9,139,692 (76)

57 (46)

728,512 (56)

771 (77)

8,411,180 (79)

 

 3 (methamphetamine + heroin and cocaine)

207 (18)

2,000,175 (17)

61 (49)

529,288 (41)

146 (14)

1,470,888 (14)

 

Injection drug use

      

< 0.001

 Yes

243 (21)

2,534,473 (21)

80 (64)

701,223 (54)

163 (16)

1,833,250 (17)

 

 Missing

1 (0)

7107 (0)

1 (1)

7107 (1)

0 (0)

0 (0)

 

Number of times use drug

      

0.014

  < =5 times

352 (31)

3,938,546 (33)

25 (20)

273,084 (21)

327 (32)

3,665,462 (34)

 

 6–49 times

381 (34)

4,192,770 (35)

36 (29)

406,771 (31)

345 (34)

3,785,998 (35)

 

  > =50 times

396 (35)

3,848,774 (32)

63 (50)

613,979 (47)

333 (33)

3,234,794 (30)

 

 Missing

3 (0)

16,230 (0)

1 (1)

4504 (0)

2 (0)

11,725 (0)

 

Age started using methamphetamine

      

0.001

 10–17 years

291 (26)

3,193,550 (27)

33 (26)

319,933 (25)

258 (26)

2,873,617 (27)

 

 18–25 years

576 (51)

6,382,330 (53)

50 (40)

503,483 (39)

526 (52)

5,878,847 (55)

 

 > =26 years

261 (23)

2,399,476 (20)

42 (34)

474,923 (37)

219 (22)

1,924,553 (18)

 

 Missing

4 (0)

20,963 (0)

0 (0)

0 (0)

4 (0)

20,963 (0)

 
  1. a P value for Rao-Scott χ2 test statistic, significance was denoted in bold
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