Major Census Region (Britain)
1 = South-east
2 = East Anglia
3 = Greater London
4 = South West
5 = West Midlands
6 = East Midlands
7 = Yorkshire and Humberside
8 = North West
9 = North
10 = Wales
11 = Scotland

Type of marginal 2005
1 = Ultra marginal: majority 1997 lt 4.99%
2 = Fairly marginal: maj 2005 5.0-9.99%
3 = Fairly Safe: maj 2005 10.0-14.99
4 = Very Safe: maj 2005 15.0-19.99%
5 = Ultra safe: maj 2005 20%+

Type of battleground 2005
1 = Con-Lab seat 2005
2 = Con-LD seat 2005
3 = Con-Nat seat 2005
4 = Lab-Con seat 2005
5 = Lab-LD seat 2005
6 = Lab-Nat seat 2005
7 = LD-Con seat 2005
8 = LD-Lab seat 2005
9 = LD-Nat seat 2005
10 = Nat-Con seat 2005
11 = Nat-Lab seat 2005
12 = Nat-LD seat 2005

Winner of seat 2005
1 = Con
2 = Lab
3 = LDem
4 = PC
5 = SNP
6 = Other
7 = Speaker
9 = Missing

Party in 2nd place 2005
1 = Con 2nd
2 = Lab 2nd
3 = LibDem 2nd
4 = PC 2nd
5 = SNP
6 = Other 2nd
9 = Missing

Seat change 2001-5
0 = None
1 = Seat change
9 = Missing

Minister or shadow minister during the 2005 election
0 = Not
1 = Minister/Shadow Minister

Incumbent MP retiring in 2005
0 = Not
1 = Retiring MP

Byelection in seat during 2001-2005
0 = None
1 = Byelection

Gender of Consevative PPC 2005
0 = Male
1 = Female
9 = Missing

Gender of Labour PPC 2005
0 = male
1 = female

Gender of Liberal Democrat PPC 2005
0 = Male
1 = Female

All woman shortlist used in Labour selection 2005
0 = Not
1 = All woman shortlist
9 = Missing

Ethnicity of Conservative PPC 2005
0 = White
1 = Asian/Black

Ethnicity of Labour PPC 2005
0 = white
1 = asian/black

Incumbency status of Conservative candidate 2005
0 = PPC
1 = MP

Conservative 'city seat initiative' 2005
0 = Not
1 = City seat initiative

Type of marginal 2001
1 = Ultra marginal: maj01 lt 4.9%
2 = Fairly marginal: maj01 5.0-9.9%
3 = Fairly Safe: maj01 10.0-14.9
4 = Very Safe: maj01 15.0-19.9%
5 = Ultra safe: maj01 20%+

Type of battleground seat 2001
1 = Con-Lab seat 2001
2 = Con-LD seat 2001
3 = Con-Nat seat 2001
4 = Lab-Con seat 2001
5 = Lab-LD seat 2001
6 = Lab-Nat seat 2001
7 = LD-Con seat 2001
8 = LD-Lab seat 2001
9 = LD-Nat seat 2001
10 = Nat-Con seat 2001
11 = Nat-Lab seat 2001
12 = Nat-LD seat 2001
13 = Other

Winner of seat 2001
1 = Con win
2 = Lab win
3 = Lib Dem win
4 = PC win
5 = SNP win
6 = Other win
7 = Speaker

Party in 2nd place 2001
1 = Con 2nd
2 = Lab 2nd
3 = LibDem 2nd
4 = PC 2nd
5 = SNP 2nd
6 = Other 2nd

Seat changed in 2001
0 = No
1 = Yes

Winner of seat 1997
1 = Con
2 = Lab
3 = LibDem
4 = PC
5 = SNP
6 = Oth

Party in second place1997
0 = Other 2nd
1 = Con 2nd
2 = Lab 2nd
3 = LibDem 2nd
4 = PC 2nd
5 = SNP 2nd

Seat gain in 1992-1997
1 = Con gain
2 = Lab gain
3 = LD gain
4 = PC gain
5 = SNP gain

Ethnicity of Conservative PPC
1 = Asian/Black

Winner 1992
1 = Con
2 = Lab
3 = LDem
4 = PC
5 = SNP

Second 1992
1 = Con 2nd
2 = Lab 2nd
3 = LD 2nd
4 = PC 2nd
5 = SNP 2nd