Age Groups, interaction with sex category, i.e.:
 MODEL: 
CON1= A_M_A1*WIN1*(SEX=M)*(AGE_GROUP=1)+ ... +A_M_A6*WIN1*(SEX=M)*(AGE_GROUP=6)+
     A_F_A1*WIN1*(SEX=F)*(AGE_GROUP=1) + ... + A_F_A6*WIN1*(SEX=F)*(AGE_GROUP=6)


TOBIT ESTIMATION
      Dependent variable: CON1

  Number of observations = 456  Schwarz B.I.C. = 1459.29
 Number of positive obs. = 331  Log likelihood = -1422.56
 Fraction of positive obs. =    0.725877    

                           Standard
 Parameter   Estimate        Error       t-statistic   P-value
 WIN1SEXMA1  .258339       .099738       2.59017       [.010]
 WIN1SEXMA2  .668406       .094823       7.04897       [.000]
 WIN1SEXMA3  .155728       .028432       5.47727       [.000]
 WIN1SEXMA4  .382144       .073651       5.18856       [.000]
 WIN1SEXMA5  .623310       .161118       3.86864       [.000]
 WIN1SEXMA6  .854554       .125853       6.79011       [.000]
 WIN1SEXFA1  .458626       .247256       1.85486       [.064]
 WIN1SEXFA2  .687374       .097320       7.06305       [.000]
 WIN1SEXFA3  .337621       .088756       3.80393       [.000]
 WIN1SEXFA4  .388324       .067745       5.73213       [.000]
 WIN1SEXFA5  .596581       .117971       5.05702       [.000]
 WIN1SEXFA6  .027041       .194649       .138923       [.890]
 SIGMA       12.5037       .515078       24.2754       [.000]

 Standard Errors computed from   analytic second derivatives 
 (Newton)
                                      dP/dX

                        0             1 
 WIN1SEXMA1    -0.0067481     0.0067481 
 WIN1SEXMA2     -0.017460      0.017460 
 WIN1SEXMA3    -0.0040678     0.0040678 
 WIN1SEXMA4    -0.0099821     0.0099821 
 WIN1SEXMA5     -0.016282      0.016282 
 WIN1SEXMA6     -0.022322      0.022322 
 WIN1SEXFA1     -0.011980      0.011980 
 WIN1SEXFA2     -0.017955      0.017955 
 WIN1SEXFA3    -0.0088191     0.0088191 
 WIN1SEXFA4     -0.010144      0.010144 
 WIN1SEXFA5     -0.015583      0.015583 
 WIN1SEXFA6   -0.00070635    0.00070635