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Table 2 A modified Poisson regression of the relationship between IPSV and current smoking status

From: Association between experiences of intimate partner sexual violence and cigarette smoking among women in union in Papua New Guinea: evidence from a nationally representative survey

Predictors Model ICrude RR (95%CI) Model II Adjusted RR (95%CI) Model III Adjusted RR (95%CI) Model IV Adjusted RR (95%CI)
Experience sexual violence
 No 1.00 1.00 1.00 1.00
 Yes 1.33(1.18–1.50)*** 1.24(1.09–1.43)** 1.24(1.08–1.42)** 1.24(1.08–1.42)**
Age groups (yrs)
 15–19   1.00 1.00 1.00
 20–24   0.91(0.62–1.34) 0.90(0.61–1.34) 0.92(0.62–1.36)
 25–29   0.96(0.64–1.44) 0.96(0.64–1.46) 0.97(0.64–1.47)
 30–34   0.89(0.59–1.35) 0.89(0.58–1.36) 0.91(0.59–1.38)
 35–39   0.76(0.49–1.17) 0.76(0.49–1.18) 0.76(0.49–1.18)
 40–44   0.64(0.40–1.01) 0.63(0.39–1.00) 0.64(0.40–1.02)
 45–49   0.50(0.30–0.84)** 0.52(0.31–0.88)* 0.53(0.32–0.90)*
Region
 Southlands   1.00 1.00 1.00
 Highlands   1.47(1.21–1.79)*** 1.48(1.23–1.81)*** 1.47(1.20–1.80)***
 Momase   1.81(1.50–2.19)*** 1.82(1.50–2.21)*** 1.79(1.48–2.18)***
 Islands   1.40(1.14–1.72)** 1.40(1.14–1.73)** 1.40(1.13–1.72)**
Place of residence
 Rural   1.00 1.00 1.00
 Urban   1.51(1.28–1.77)*** 1.42(1.20–1.70)*** 1.31(1.09–1.58)**
Religion
 Christian   1.00 1.00 1.00
 Non-Christian   0.65(0.18–2.34) 0.69(0.19–2.52) 0.66(0.18–2.39)
 No religion   1.80(1.10–2.96)* 1.92(1.19–3.10)** 1.88(1.18–2.99)**
Highest education level
 No education   1.00 1.00 1.00
 Primary   0.94(0.76–1.17) 0.93(0.75–1.16) 0.92(0.74–1.15)
 Secondary   1.11(0.82–1.49) 1.02(0.75–1.39) 1.03(0.75–1.41)
 Higher   1.04(0.66–1.62) 0.87(0.54–1.41) 1.00(0.61–1.65)
Literacy level
 Cannot read at all   1.00 1.00 1.00
 Able to read only parts of sentence   0.93(0.74–1.16) 0.91(0.72–1.15) 0.89(0.70–1.13)
 Able to read whole sentence   0.78(0.62–0.99)* 0.75(0.58–0.97)* 0.75(0.58–0.96)*
 No card with required language   0.60(0.23–1.56) 0.60(0.22–1.60) 0.61(0.23–1.64)
 Blind/visually impaired   2.17(0.37–12.75) 1.98(0.35–11.27) 1.89(0.30–12.01)
Marital status
 Married   1.00 1.00 1.00
 Co-habiting   0.96(0.81–1.14) 0.96(0.81–1.13) 1.01(0.85–1.37)
Currently residing with partner     
 Living together   1.00 1.00 1.00
 Staying elsewhere   0.86(0.70–1.06) 0.86(0.70–1.06) 0.85(0.69–1.05)
Number of partner’s wives
 No other wife   1.00 1.00 1.00
 1   1.16(0.96–1.39) 1.16(0.96–1.39) 1.14(0.94–1.37)
 2   0.96(0.65–1.43) 0.96(0.65–1.43) 1.01(0.68–1.50)
 3 or more   1.67(1.16–2.39)** 1.76(1.22–2.53)** 1.70(1.19–2.43)**
 Don’t know   1.08(0.66–1.77) 1.07(0.66–1.74) 1.04(0.64–1.68)
Partner’s age
 15–24   1.00 1.00 1.00
 25–34   0.94(0.70–1.26) 0.96(0.71–1.29) 0.94(0.70–1.28)
 35–44   1.07(0.77–1.49) 1.10(0.79–1.54) 1.11(0.80–1.55)
 45 +    1.14(0.80–1.64) 1.15(0.80–1.66) 1.14(0.79–1.64)
 55 +      
Partner’s educational level
 No education   1.00 1.00 1.00
 Primary   0.85(0.71–1.03) 0.86(0.71–1.04) 0.91(0.75–1.11)
 Secondary   0.94(0.75–1.16) 0.91(0.72–1.14) 0.94(0.74–1.18)
 Higher   0.90(0.66–1.24) 0.85(0.62–1.17) 0.91(0.66–1.25)
Insurance cover
 No    1.00 1.00
 Yes    0.89(0.62–1.28) 0.90(0.63–1.30)
Internet access
 No    1.00 1.00
 Yes    1.24(0.97–1.57) 1.28(1.00–1.63)
Ownership of mobile phone
 No    1.00 1.00
 Yes    1.00(0.85–1.18) 1.00(0.85–1.18)
Watch television
 No    1.00 1.00
 Yes    1.02(0.85–1.24) 1.05(0.86–1.27)
Listen to radio
 No    1.00 1.00
 Yes    1.18(0.99–1.40) 1.19(1.00–1.42)
Read newspapers/magazines
 No    1.00 1.00
 Yes    1.05(0.86–1.29) 1.03(0.84–1.27)
Occupation
 Not working     1.00
 Professional/technical/managerial     0.66(0.45–0.96)*
 Clerical     0.45(0.23–0.89)*
 Sales     1.22(0.94–1.59)
 Agricultural     0.74(0.60–0.91)**
 Services     1.07(0.86–1.33)
 Manual job     0.49(0.18–1.37)
Wealth index
 Poorest     1.00
 Poorer     1.05(0.85–1.30)
 Middle     0.75(0.59–0.95)*
 Richer     1.00(0.79–1.27)
 Richest     0.96(0.72–1.28)
Financial inclusion
 No     1.00
 Yes     1.14(0.94–1.39)
  1. RR Relative Risk
  2. *p < 0.05, **p < 0.01, ***p < 0.0001