LOWBRTH.DES year lowbrth infmort afdcprt popul pcinc physic afdcprc d90 lpcinc cafdcprc clpcinc lphysic clphysic clowbrth cinfmort afdcpay afdcinc lafdcpay clafdcpy cafdcinc stateabb state beds bedspc lbedspc clbedspc povrate cpovrate afdcpsq cafdcpsq physicpc lphypc clphypc lpopul clpopul Obs: 100 1. year 1987 or 1990 2. lowbrth perc. births low weight 3. infmort infant mortality rate 4. afdcprt # participants in AFDC, 1000s 5. popul population, 1000s 6. pcinc per capita income, $ 7. physic Drs. per 100,000 population 8. afdcprc percent of pop on AFDC 9. d90 =1 if year == 1990 10. lpcinc log of pcinc 11. cafdcprc change in afdcprc 12. clpcinc change in lpcinc 13. lphysic log of physic 14. clphysic change in lphysic 15. clowbrth change in lowbrth 16. cinfmort change in infmort 17. afdcpay avg monthly AFDC payment 18. afdcinc afdcpay as % pcinc 19. lafdcpay log of afdcpay 20. clafdcpy change in lafdcpay 21. cafdcinc change in afdcinc 22. stateabb state postal code 23. state name of state 24. beds # hospital beds, 1000s 25. bedspc beds per capita 26. lbedspc log(bedspc) 27. clbedspc change in lbedspc 28. povrate % people below poverty line 29. cpovrate change in povrate 30. afdcpsq afdcper^2 31. cafdcpsq change in afdcpsq 32. physicpc physicians per capita 33. lphypc log(physicpc) 34. clphypc change in lphypc 35. lpopul log(popul) 36. clpopul change in lpopul