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Table 3 Unadjusted modified Poisson regression investigating tobacco use with demographic characteristics and health outcomesa

From: Tobacco use and nicotine dependence among people living with HIV who drink heavily in South Africa: a cross-sectional baseline study

 

Ever smoking

Current smoking

Ever snuff use

Current snuff use

ATPU

RRR (95% CI)

p

RRR (95% CI)

p

RRR (95% CI)

p

RRR (95% CI)

p

RRR (95% CI)

p

Gender

 Maleb

1

 

1

 

1

 

1

 

1

 

 Female

0.33 (0.27–0.40)

< 0.001*

0.17 (0.12–0.24)

< 0.001*

5.45 (3.47–8.58)

0.001*

28.62 (9.19–89.14)

< 0.001*

0.76 (0.64–0.90)

0.001*

Age

 18–24b

1

 

1

 

1

 

1

 

1

 

 25–34

1.27 (0.70–2.30)

0.436

1.95 (0.65–5.86)

0.235

1.07 (0.41–2.82)

0.888

1.56 (0.38–6.32)

0.535

1.68 (0.74–3.78)

0.212

 35–44

1.12 (0.62–1.99)

0.708

1.85 (0.63–5.42)

0.264

1.66 (0.67–4.11)

0.278

2.52 (0.66–9.66)

0.177

2.10 (0.96–4.61)

0.064

 45–54

1.43 (0.80–2.56)

0.230

2.52 (0.86–7.43)

0.093

1.48 (0.59–3.76)

0.406

2.15 (0.55–8.41)

0.272

2.37 (1.08–5.24)

0.032*

 55–65

1.66 (0.90–3.07)

0.105

3.07 (1.01–9.35)

0.049*

1.66 (0.61–4.53)

0.321

2.81 (0.68–11.63)

0.154

2.76 (1.23–6.22)

0.014*

 65+

2.16 (0.97–4.78)

0.059

1.92 (0.26–14.17)

0.524

0

0

1.15 (0.18–7.44)

0.883

SES

 Lowb

1

 

1

 

1

 

1

 

1

 

 Average

1.00 (0.68–1.47)

0.993

0.76 (0.48–1.18)

0.217

1.21 (0.64–2.30)

0.554

1.60 (0.69–3.71)

0.276

0.97 (0.70–1.35)

0.856

 High

0.98 (0.67–1.44)

0.917

0.61 (0.39–0.97)

0.036*

1.10 (0.58–2.10)

0.767

1.20 (0.51–2.82)

0.675

0.74 (0.52–1.03)

0.076

Marital Status

 Marriedb

1

 

1

 

1

 

1

 

1

 

 Cohabiting

0.93 (0.68–1.27)

0.649

1.26 (0.83–1.92)

0.285

1.19 (0.70–2.03)

0.524

1.23 (0.61–2.50)

0.566

1.22 (0.89–1.68)

0.209

 Never married

0.79 (0.65–0.96)

0.020*

0.88 (0.65–1.18)

0.383

1.27 (0.91–1.78)

0.166

1.65 (1.07–2.54)

0.023*

1.11 (0.90–1.38)

0.319

 Others

0.82 (0.60–1.13)

0.227

0.88 (0.55–1.41)

0.589

1.33 (0.82–2.14)

0.246

1.68 (0.94–3.03)

0.082

1.11 (0.81–1.52)

0.507

Employment

 Unemployedb

1

 

1

 

1

 

1

 

1

 

 Employed

1.28 (1.06–1.54)

0.010*

1.50 (0.13–1.98)

0.004*

0.75 (0.57–0.97)

0.031*

0.65 (0.47–0.90)

0.010*

1.04 (0.88–1.24)

0.635

Education

  < Grade 12b

1

 

1

 

1

 

1

 

1

 

 Grade 12

0. 81 (0.64–1.02)

0.072

0.78 (0.56–1.08)

0.140

0.55 (0.37–0.80)

0.002*

0.50 (0.32–0.80)

0.003*

0.64 (0.51–0.82)

< 0.001*

  > Grade 12

1.18 (0.93–1.48)

0.174

0.98 (0.67–1.43)

0.916

0.56 (0.34–0.93)

0.023*

0.47 (0.25–0.89)

0.020*

0.74 (0.55–0.99)

0.041*

Years on ARV

  < one yearb

1

 

1

 

1

 

1

 

1

 

 1–3 years

1.40 (0.84–2.38)

0.199

1.15 (0.61–2.16)

0.677

0.86 (0.39–1.92)

0.714

0.63 (0.27–1.45)

0.275

0.98 (0.63–1.51)

0.911

 4–6 years

1.24 (0.74–2.08)

0.416

0.94 (0.50–1.77)

0.852

1.10 (0.52–2.34)

0.806

0.84 (0.39–1.81)

0.652

1.94 (0.62–1.44)

0.782

 7+ years

1.08 (0.65–1.80)

0.768

0.80 (0.43–1.48)

0.470

1.31 (0.63–2.72)

0.463

0.96 (0.46–2.01)

0.912

0.92 (0.61–1.39)

0.689

Viral Load

 Low VLb

1

 

1

 

1

 

1

 

1

 

 Moderate VL

1.09 (0.72–1.65)

0.696

1.49 (0.90–2.45)

0.120

0.61 (0.25–1.51)

0.283

0.60 (0.21–1.77)

0.359

1.14 (0.77–1.68)

0.510

 High VL

0.79 (0.43–1.45)

0.452

0.93 (0.43–2.01)

0.852

0.19 (0.03–1.29)

0.089

0

0.55 (0.26–1.18)

0.123

Depression

 Non-significantb

1

 

1

 

1

 

1

 

1

 

 Significant

1.00 (0.84–1.19)

0.987

1.10 (0.85–1.43)

0.455

1.55 (1.18–2.03)

0.002*

1.71 (1.23–2.38)

0.001*

1.29 (1.08–1.53)

0.004*

  1. ATPU any tobacco product use, RRR Unadjusted Relative Risk Ratio
  2. aModified Poisson regression with DVs: smoking behaviour; IVs: socio-demographic variables, HIV outcome, and depression
  3. breference variable; “other” marital status includes divorced, separated, or widowed
  4. *significant at p ≤ .05