Table 2.

Unstandardized regression coefficient (B), SE, and standardized regression coefficients (β) for the total sample (N = 85) and stratified samples (controlling for hormonal contraception use when applicable)

Dependent variableMetabolism
BSEβ
Total
    mPuff-Vol2.1881.0290.237*
    mPuff-Dur−0.4320.411−0.119
    mPuff-Inter0.9931.0790.102
    mPuff-Vel0.3190.3610.102
    totPuff-Vol183.923171.0070.121
Male (n = 30)
    mPuff-Vol9.5723.4040.469
    mPuff-Dur−2.0490.992−0.363*
    mPuff-Inter−0.4362.644−0.031
    mPuff-Vel1.6231.2300.242
    totPuff-Vol−6.75010.692−0.147
Female (n = 55)
    mPuff-Vol1.3570.8660.202
    mPuff-Dur−0.3090.443−0.095
    mPuff-Inter0.9451.1960.103
    mPuff-Vel0.1480.3510.060
    totPuff-Vol189.850159.1390.153
Euro. American
    mPuff-Vol1.5791.3760.156
    mPuff-Dur−0.2600.554−0.066
    mPuff-Inter1.6481.5640.142
    mPuff-Vel0.2950.4610.090
    totPuff-Vol105.294217.4060.066
African American
    mPuff-Vol2.2151.6970.268
    mPuff-Dur−0.6960.707−0.205
    mPuff-Inter−1.5031.240−0.250
    mPuff-Vel−0.3420.616−0.118
    totPuff-Vol140.310307.2840.126
  • Abbreviations: mPuff-Dur, mean puff duration; mPuff-Inter, mean puff interval; mPuff-Vel, mean puff velocity.

  • * P < 0.05.

  • P < 0.01.