Table 4 Trends in HIV prevalence by selected socio-demographic characteristics in rural and urban areas of Zambia, results of multivariate logistic regression and chi square tests for linear trend, 1995–2003: Age group 15–49 years

R

Education (~age)‡

0–7 years

0.93(0.62–1.34)

0.72(0.47–1.09)

0.227

1.07(0.57–2.01)

1.03(0.62–1.72)

0.838

U

8–9 years

0.74(0.29–1.88)

0.84(0.28–2.46)

0.731

0.52(0.24–1.13)

0.50(0.22–1.14)

0.104

≥10 years

0.38(0.15–0.98)

0.44(0.22–0.87)

0.223

0.33(0.17–0.65)

0.29(0.08–0.96)

0.043

R

Marital status

Single

1.48(0.76–2.86)

0.50(0.22–1.12)

0.188

0.74(0.23–2.4)

0.31(0.06–1.49)

0.021

Married

0.66(0.38–1.15)

0.63(0.42–0.96)

0.096

0.91(0.53–1.57)

0.82(0.49–1.37)

0.112

A

Employed

Yes

0.66(0.42–1.03

0.76(0.48–1.21

0.914

0.81(0.21–3.15)

0.73(0.22–2.42)

0.479

No

1.03(0.57–1.84)

0.55(0.34–0.89)

0.026

0.82(0.48–1.38)

0.78(0.47–1.31)

0.055

Travels

Never

0.99(0.52–1.91)

1.36(0.86–2.16)

0.180

0.93(0.54–1.60

1.09(0.70–1.71)

0.644

L

Sometimes

0.66(0.44–0.98)

0.43(0.27–0.70)

0.019

0.76(0.33–1.71)

0.59(0.31–1.10)

0.024

Often

0.76(0.21–2.75)

0.62(0.19–1.94)

0.563

0.92(0.23–3.67)

0.44(0.07–2.89)

0.051

Duration lived

<1 year

0.25(.10–0.63)

0.63(0.22–1.81

0.733

0.57(0.33–0.99)

0.79(0.35–1.82)

0.199

(In current residence)

1–5 yrs

0.74(0.36–1.52)

0.57(0.26–1.28)

0.069

1.79(0.88–3.62)

1.41(0.74–2.69)

0.234

≥6 yrs

1.24(0.76–2.03)

0.95(0.60–1.51)

0.937

0.45(0.23–0.89)

0.48(0.26–0.88)

0.011

Migration

Village

0.72(0.43–1.22)

0.99(0.51–1.94)

0.922

1.12(0.58–2.16)

1.04(0.55–1.97)

0.840

(origin 5 years)

Town

0.48(0.22–0.98)

0.30(0.13–0.72)

0.041

1.75(0.99–3.01)

1.31(0.75–2.32)

0.586

Given birth

Yes

--

--

0.75(0.42–1.34)

0.58(0.30–1.11)

0.019

(ever): age, 15–29

No

--

--

0.56(0.23–1.33)

0.27(0.07–0.99)

0.012

U

Education (~age)‡

0–7 years

1.66(0.80–3.42)

1.34(0.72–2.49)

0.398

0.83(0.59–1.16)

1.11(0.71–1.76)

0.498

R

8–9 years

0.42(0.14–1.26)

0.52(0.26–1.06)

0.305

1.10(0.76–1.61)

0.66(0.39–1.08)

0.179

≥10 years

1.03(0.72–1.49)

0.55(0.40–0.74)

0.001*

0.91(0.61–1.34)

0.53(0.39–0.72)

0.001*

B

Marital status

Single

0.95(0.62–1.46)

0.51(0.33–0.79)

0.001*

1.05(0.69–1.58)

0.49(0.35–0.69)

0.001*

Married

1.04(0.72–1.52)

0.71(0.47–0.98)

0.035

0.92(0.74–1.14)

0.73(0.57–0.94)

0.002

A

Employed

Yes

0.97(0.69–1.36)

0.64(0.44–0.95)

0.001

0.98(0.67–1.41)

0.69(0.51–0.95)

0.018

No

0.99(0.60–1.64)

0.52(0.37–0.74)

0.001*

0.93(0.76–1.15)

0.63(0.47–0.85)

0.001*

N

Travels

Never

0.81(0.57–1.16)

0.57(0.32–1.02)

0.001

0.88(0.70–1.11)

0.64(0.49–0.83)

0.003

Sometimes

1.14(0.86–1.49)

0.52(0.34–0.81)

0.001*

1.06(0.84–1.35)

0.71(0.52–0.97)

0.008

Often

1.11(0.55–2.21)

0.80(0.38–1.70)

0.189

0.77(0.23–2.59)

0.44(0.23–0.82)

0.002

Duration lived

<1 year

1.62(0.83–3.19)

0.47(0.28–0.76)

0.052

0.83(0.54–1.27)

0.66(0.45–0.97)

0.196

(In current residence)

1–5 yrs

0.85(0.54–1.35)

0.71(0.47–1.09)

0.007

0.83(0.59–1.16)

0.56(0.40–0.79)

0.001*

≥6 yrs

0.90(0.56–1.46)

0.53(0.29–0.99)

0.001*

1.31(0.95–1.81)

0.86(0.57–1.33)

0.129

Migration

Village

1.01(0.39–2.59)

0.39(0.09–1.54)

0.314

0.98(0.42–2.32)

0.93(0.42–2.09)

0.651

(origin 5 years)

Town

1.03(0.63–1.68)

0.69(0.49–0.96)

0.001

0.83(0.64–1.06)

0.58(0.45–0.74)

0.001*

Given birth

Yes

--

--

0.73(0.63–0.35)

0.51(0.38–0.67)

0.001*

(ever): age, 15–29

No

--

--

0.87(0.64–1.19)

0.52(0.35–0.75)

0.042