Found 140 MRIs.

Merged IDs with Age0, Sex, Education, Race, PovStat, BPsys, BPdia

Distribution by race, sex, and poverty status:

, , PovStat = Above

       Sex
Race    Women Men
  White    44  34
  AfrAm     9  10

, , PovStat = Below

       Sex
Race    Women Men
  White    12   8
  AfrAm    13  10

Mean systolic blood pressure by sex, race and poverty status

     Sex  Race PovStat  N   Mean
1: Women White   Above 44 115.44
2: Women White   Below 12 121.96
3: Women AfrAm   Above  9 116.62
4: Women AfrAm   Below 13 120.45
5:   Men White   Above 34 117.03
6:   Men White   Below  8 130.50
7:   Men AfrAm   Above 10 125.89
8:   Men AfrAm   Below 10 115.25

Mean diastolic blood pressure by sex, race and poverty status

     Sex  Race PovStat  N  Mean
1: Women White   Above 44 70.89
2: Women White   Below 12 72.67
3: Women AfrAm   Above  9 68.81
4: Women AfrAm   Below 13 79.55
5:   Men White   Above 34 70.22
6:   Men White   Below  8 78.75
7:   Men AfrAm   Above 10 80.78
8:   Men AfrAm   Below 10 70.62