Table 9 Cox model results for male household heads’ duration considering family members traveling or waiting (selected variables)

Consensual union

0.758***

0.757***

0.818***

0.818***

(0.037)

(0.037)

(0.049)

(0.049)

Never married

0.633***

0.632***

0.454***

0.456***

(0.081)

(0.081)

(0.066)

(0.066)

Once married but not now

0.690**

0.685**

0.596***

0.598***

(0.118)

(0.117)

(0.099)

(0.099)

Married

1.556***

1.588***

2.108***

2.196***

(0.164)

(0.167)

(0.243)

(0.255)

Num. of children under 18 waiting

1.023***

1.020**

1.018**

1.023**

1.017*

1.016

(0.008)

(0.008)

(0.008)

(0.010)

(0.010)

(0.010)

Num. of children under 18 traveling

0.765***

0.808***

0.809***

0.773***

0.845***

0.833***

(0.021)

(0.024)

(0.024)

(0.035)

(0.040)

(0.040)

Num. of adult children waiting

0.979

0.978

0.978

0.977

0.983

0.984

0.984

0.985

(0.015)

(0.015)

(0.015)

(0.015)

(0.015)

(0.015)

(0.015)

(0.015)

Num. of adult children traveling

0.936*

0.939*

0.937*

0.931**

0.941

0.944

0.943

0.950

(0.033)

(0.033)

(0.034)

(0.034)

(0.041)

(0.041)

(0.043)

(0.044)

Num. of daughters under 18 waiting

1.010

1.012

(0.012)

(0.015)

Num. of sons under 18 waiting

1.033***

1.038**

(0.011)

(0.015)

Num. of daughters under 18 traveling

0.717***

0.744***

(0.037)

(0.059)

Num. of sons under 18 traveling

0.796***

0.797***

(0.034)

(0.054)

Spouse traveling with

0.630***

0.613***

0.589***

0.555***

(0.039)

(0.038)

(0.041)

(0.039)

Spouse visited

0.411***

0.211***

(0.045)

(0.032)

Total num. of US trips

1.045***

1.045***

1.045***

1.045***

1.060***

1.060***

1.059***

1.058***

(0.004)

(0.004)

(0.004)

(0.004)

(0.005)

(0.005)

(0.005)

(0.005)

Distance (Mexico-US)

0.9998***

0.9998***

0.9998***

0.9998***

0.9997***

0.9997***

0.9997***

0.9997***

(0.00003)

(0.00003)

(0.00003)

(0.00003)

(0.00005)

(0.00005)

(0.00005)

(0.00005)

Log pseudolikelihood

–139,731.05

–139,729.74

–139,707.86

–139,633.21

–28,508.61

–28,507.19

–28,486.20

–28,419.71

Num. of obs

17,052

17,052

17,052

17,052

4894

4894

4894

4894