Table 6 Correlation coefficients (95% CIs) and multivariable regression (standardized beta coefficients) exploring correlates of HRQoL

Physical health summary score (PHS)

Physical component summary scale(PCS)

Mental health summary score (MHS)

Mental component summary scale(MCS)

r (95% CI)

r (95% CI)

r (95% CI)

r (95% CI)

β (p value)

β (p value)

β (p value)

β (p value)

Age

r = -0.011

r = -0.067

r = 0.128

r = 0.228

(-0.211, 0.189)

(-0.767, 0.543)

(-0.074, 0.320)

(0.029, 0.409)

β = -0.063 (p = 0.579)

β = -0.116 (p = 0.321)

β = 0.153 (p = 0.169)

β = 0.215 (p = 0.052)

Male Gender

r = 0.155

r = 0.115

r = 0.222

r = 0.164

(-0.046, 0.344)

(-0.087, 0.308)

(0.023, 0.404)

(-0.037, 0.352)

β = 0.174 (p = 0.099)

β = 0.102 (p = 0.345)

β = 0.260 (p = 0.013)

β = 0.199 (p = 0.052)

Years living w HIV

r = -0.117

r = -0.166

r = -0.059

r = 0.197

(-0.310, 0.085)

(-0.354, 0.035)

(-0.143, 0.256)

(-0.003, 0.382)

β = -0.163 (p = 0.161)

β = -0.213 (p = 0.076)

β = -0.016 (p = 0.886)

β = 0.130 (p = 0.246)

Current smoker

r = -0.113

r = -0.069

r = -0.011

r = 0.044

(-0.306, 0.089)

(-0.265, 0.133)

(-0.211, 0.189)

(-0.157, 0.242)

β = -0.973 (p = 0.646)

β = -1.279 (p = 0.556)

β = 4.226 (p = 0.044)

β = 1.867 (p = 0.363)

Former smoker

r = -0.105

r = -0.064

r = -0.014

r = 0.048

(-0.299, 0.097)

(-0.261, 0.138)

(-0.213, 0.187)

(-0.153, 0.246)

β = 0.869 (p = 0.681)

β = 1.240 (p = 0.568)

β = -4.254 (p = 0.043)

β = -1.865 (p = 0.364)

Currently uses marijuana

r = -0.099

r = -0.065

r = -0.032

r = -0.045

(-0.293, 0.103)

(-0.262, 0.137)

(-0.231, 0.169)

(-0.243, 0.156)

β = -0.186 (p = 0.098)

β = -0.097 (p = 0.397)

β = -0.128 (p = 0.244)

β = -0.143 (p = 0.187)

Has used drugs (including cocaine and heroin)

r = -0.216

r = -0.157

r = -0.119

r = -0.103

(-0.399, -0.017)

(-0.346, 0.044)

(-0.312, 0.083)

(-0.297, 0.099)

β = -0.199 (p = 0.081)

β = -0.129 (p = 0.266)

β = -0.179 (p = 0.109)

β = -0.094 (p = 0.392)

Currently receiving PI-based regimen

r = 0.016

r = -0.027

r = 0.084

r = 0.137

(-0.185, 0.215)

(-0.226, 0.174)

(-0.118, 0.279)

(-0.065, -0.128)

β = 0.067 (p = 0.582)

β = 0.025 (p = 0.843)

β = 0.117 (p = 0.326)

β = 0.157 (p = 0.185)

Currently receiving NNRTI-based regimen

r = 0.177

r = 0.141

r = 0.125

r = 0.181

(-0.024, 0.364)

(-0.061, 0.332)

(-0.077, 0.317)

(-0.020, 0.368)

β = 0.087 (p = 0.479)

β = 0.116 (p = 0.357)

β = 0.006 (p = 0.961)

β = 0.050 (p = 0.672)

Hours slept each night

r = 0.078

r = -0.008

r = 0.194

r = 0.207

(-0.124, 0.274)

(-0.208, 0.192)

(-0.006, 0.379)

(0.007, 0.391)

β = 0.141 (p = 0.209)

β = -0.018 (p = 0.877)

β = 0.283 (p = 0.011)

β = 0.270 (p = 0.014)

Nadir CD4 cell count

r = -0.057

r = -0.067

r = -0.093

r = -0.045

(-0.254, 0.154)

(-0.263, 0.135)

(-0.288, 0.109)

(-0.767, -0.543)

β = -0.018 (p = 0.883)

β = -0.080 (p = 0.515)

β = -0.018 (p = 0.880)

β = 0.112 (p = 0.336)