| Characteristics | 
        Men | 
        Women | 
        P-value | 
       
      
        |   | 
        n=97 | 
        n=96 | 
          | 
       
      
        | Mean age (SD), years | 
        57.2 (5.8) | 
        58.0 (5.9) | 
        0.34 | 
       
      
        | Mean weight (SD), kg | 
        64.5 (11.0) | 
        65.5 (13.5) | 
        0.57 | 
       
      
        | Mean height (SD), cm | 
        176 (8) | 
        163 (7) | 
        <0.001 | 
       
      
        | Mean BMI (SD), kg/m2 | 
        20.8 (3.4) | 
        24.5 (4.5) | 
        <0.001 | 
       
      
        | Underweight | 
        28 (29%) | 
        11 (11%) | 
        <0.001 | 
       
      
        | Normal | 
        60 (62%) | 
        42 (44%) | 
       
      
        | Overweight | 
        8 (8%) | 
        30 (31%) | 
       
      
        | Obesity | 
        1 (1%) | 
        13 (14%) | 
       
      
        | At least one risk factor | 
        29 (30%) | 
        12 (13%) | 
        0.003 | 
       
      
        | Previous fracture | 
        7 (7%) | 
        5 (5%) | 
        0.77 | 
       
      
        | Parent fractured hip | 
        4 (4%) | 
        5 (5%) | 
        0.75 | 
       
      
        | Currentsmoker | 
        17 (18%) | 
        1 (1%) | 
        <0.001 | 
       
      
        | Alcohol(≥ 3 units/day) | 
        3 (3%) | 
        0 | 
        0.25 | 
       
      
        | Corticosteroid use | 
        0 | 
        1 (1%) | 
        0.50 | 
       
      
        | Rheumatoidarthritis | 
        0 | 
        2 (2%) | 
        0.25 | 
       
      
        | Secondaryosteoporosis | 
        4 (4%) | 
        1 (1%) | 
        0.37 | 
       
      
        | Post-menopausal (n=94) | 
          | 
        93 (99%) | 
          | 
       
      
        | Physicalactivity | 
          | 
          | 
          | 
       
      
        | Low | 
        26 (27%) | 
        36 (38%) | 
        <0.001 | 
       
      
        | Moderate | 
        38 (39%) | 
        50 (52%) | 
       
      
        | High | 
        33 (34%) | 
        10 (10%) | 
       
      
        |   | 
          | 
          | 
          | 
       
      
        | Median ART duration (IQR), years | 
        7.2 (4.0-10.4) | 
        5.7 (3.6-8.8) | 
        0.16 | 
       
      
        | Current PI use | 
        16 (16%) | 
        20 (21%) | 
        0.44 | 
       
      
        | Current TDF use | 
        22 (23%) | 
        24 (25%) | 
        0.71 | 
       
      
        | Median CD4 count nadir (IQR), cells/μLa | 
        108 (47-190) | 
        144 (81-243) | 
        0.029 | 
       
      
        | CD4 count nadir<200 cells/μL* | 
        72 (77%) | 
        61 (66%) | 
        0.12 | 
       
      
        | Median current CD4 count (IQR), cells/μLa | 
        422 (294-588) | 
        470 (346-722) | 
        0.13 | 
       
      
        | CD4 cell count<350 cells/μLa | 
        29 (37%) | 
        17 (25%) | 
        0.13 | 
       
      
        | Undetectable viral loada | 
        37 (82%) | 
        33 (87%) | 
        0.56 | 
       
     
      SD: Standard Deviation; BMI: Body Mass Index; ART: Antiretroviral Treatment;
    IQR: Interquartile Range; PI: Protease Inhibitor; TDF: Tenofovir Disoproxyl
    Fumarate 
    aCD cell count, CD4 nadir and viral load were available for 145, 186 and 83
    subjects respectively. |