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. 2012 Nov 20;2(6):e001600. doi: 10.1136/bmjopen-2012-001600

Table 2.

Univariate model
Multivariate model*
Variable OR (95% CI) p Value OR (95% CI) p Value
Panel A: logistic regression analyses for modelling anaemia, haemoglobin (g/dl) <12 vs ≥12
HIV status, HIV+ vs HIV− 3.84 (2.17 to 6.82) <0.001 NA†
HIV+, CD4 >350 vs HIV− 1.27 (0.59 to 2.75) 0.54 1.47 (0.68 to 3.21) 0.33
HIV+, CD4 200–350 vs HIV− 3.09 (1.64 to 5.81) <0.001 3.59 (1.88 to 6.83) <0.001
HIV+, CD4 <200 vs HIV− 7.42 (4.05 to 13.58) <0.001 8.09 (4.37 to 14.97) <0.001
Age (years), 30–40 vs <30 0.84 (0.54 to 1.31) 0.44
Age (years), 40+ vs <30 0.65 (0.40 to 1.06) 0.08
10–35 k Rwf vs <10 k 0.67(0.46 to 0.98) 0.04 0.68 (0.45 to 1.03) 0.07
>35 k Rwf vs <10 k 0.80 (0.47 to 1.38) 0.43 0.94 (0.52 to 1.70) 0.85
Some primary school 0.96 (0.61 to 1.51) 0.87
Secondary or university 1.00 (0.65 to 1.56) 0.98
BMI (per kg/m2) per unit 0.87 (0.82 to 0.92) <0.001 0.87 (0.82 to 0.93) <0.001
Alcohol 1–4 drinks/week 0.97 (0.42 to 2.25) 0.95
Alcohol >4 drinks/week 1.09 (0.68 to 175) 0.71
Co-trimoxazole or dapsone use 2.45 (1.54 to 3.89) 0.0002
WHO stage 4 illness, Yes vs No 2.40 (1.68 to 3.43) <0.001
Widowed vs married/partner 0.99 (0.67 to 1.47) 0.96
Other vs married/partner 1.29 (0.80 to 2.07) 0.30
Smoking vs not smoking 0.98 (0.33 to 2.92) 0.98
Employed vs not employed 1.07 (0.71 to 1.63) 0.73
Panel B: logistic regression analyses for modelling neutropenia WBC (cells/mm3) <2000 vs ≥2000
HIV status, HIV+ vs HIV− 9.68 (1.31 to 71.58) 0.03 NA†
HIV+, CD4 >350 vs HIV− 2.51 (0.23 to 27.89) 0.45 1.03 (0.08 to 13.15) 0.98
HIV+, CD4 200–350 vs HIV− 5.44 (0.68 to 45.51) 0.12 1.86 (0.78 to 65.82) 0.60
HIV+, CD4 <200 vs HIV− 20.37 (2.71 to 153.1) 0.003 7.18 (0.78 to 65.82) 0.08
Age (years), 30–40 vs <30 0.77 (0.33 to 1.77) 0.54
Age (years), 40+ vs <30 0.28 (0.08 to 0.92) 0.04
10–35 k Rwf vs <10 k 1.07 (0.47 to 2.42) 0.87
>35 k Rwf vs <10 k 1.41 (0.48 to 4.14) 0.53
Some primary school 1.05 (0.39 to 2.80) 0.92
Secondary or university 1.20 (0.46 to 3.09) 0.71
BMI (per kg/m2) per unit 0.96 (0.86 to 1.06) 0.40
Alcohol 1–4 drinks/week 0.71 (0.09 to 5.43) 0.74
Alcohol >4 drinks/week 1.07 (0.40 to 2.89) 0.89
WHO stage 4 illness yes vs no 3.36 (1.57 to 7.21) 0.002
Co-trimoxazole or dapsone use 12.18 (1.65 to 90.0) 0.014 5.69 (0.63 to 52.5) 0.12
Widowed vs married/partner 1.15 (0.50 to 2.66) 0.74
Other vs married/partner 1.19 (0.43 to 3.34) 0.74
Smoking vs not smoking 1.28 (0.17 to 9.83) 0.81
Employed vs not employed 0.36 (0.11 to 1.22) 0.10
Panel C: logistic regression analyses for thrombocytopenia, platelets (mm3) <125 vs ≥125
HIV status, HIV+ vs HIV− 1.64 (0.96 to 2.80) 0.07 NA†
HIV+, CD4 >350 vs HIV− 1.66 (0.87 to 3.16) 0.13 2.18 (1.10 to 4.32) 0.03
HIV+, CD4 200–350 vs HIV− 1.81 (0.99 to 3.29) 0.05 2.36 (1.25 to 4.45) 0.008
HIV+, CD4 <200 vs HIV− 1.47 (0.79 to 2.75) 0.23 1.95 (1.01 to 3.79) 0.05
Age (years), 30–40 vs <30 1.33 (0.74 to 2.37) 0.34 1.29 (0.72 to 2.33) 0.40
Age (years), 40+ vs <30 1.61 (0.88 to 2.95) 0.12 2.32 (1.20 to 4.50) 0.01
10–35 k Rwf vs <10 k 0.89 (0.58 to 1.38) 0.61
>35 k Rwf vs <10 k 0.74 (0.38 to 1.45) 0.38
Some primary school 0.66 (0.40 to 1.11) 0.12
Secondary or university 0.77 (0.47 to 1.26) 0.29
BMI (per kg/m2) per unit 0.96 (0.90 to 1.01) 0.12 0.95 (0.89 to 1.00) 0.06
Alcohol 1–4 drinks/week 0.17 (0.02 to 1.22) 0.08
Alcohol >4 drinks/week 0.87 (0.49 to 1.53) 0.62
WHO stage 4 illness vs No 0.78 (0.50 to 1.22) 0.28
Co-trimoxazole or dapsone use 1.10 (0.69 to 1.74) 0.69
Widowed vs married/partner 0.63 (0.40 to 0.98) 0.04 0.49 (0.29 to 0.80) 0.005
Other vs married/partner 0.62 (0.34 to 1.10) 0.10 0.59 (0.32 to 1.07) 0.08
Smoking vs not smoking 0.71 (0.16 to 3.09) 0.65
Employed vs not employed 1.15 (0.71 to 1.86) 0.57

*By Stepwise selection with overall p=0.05 to enter and p=0.10 to remain for the entire variable. Only the variables selected into the final model are included.

†HIV+ status was fit into the multivariate model by CD4 category with HIV− as baseline.

BMI, body mass index; WBC, white blood cells.