Table 5.
Unadjusted | Adjusted for age | |||||
---|---|---|---|---|---|---|
Education tertile | OR | 95 % CI | OR | 95 % CI | P value* | |
Pitkäranta | ||||||
Men† | ||||||
1997 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·53 | 0·29, 0·96 | 0·49 | 0·27, 0·90 | 0·02 | |
Low | 0·58 | 0·28, 1·19 | 0·59 | 0·28, 1·23 | 0·16 | |
2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·35 | 0·18, 0·67 | 0·31 | 0·16, 0·61 | 0·001 | |
Low | 0·10 | 0·04, 0·26 | 0·09 | 0·03, 0·25 | <0·001 | |
1997 and 2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·44 | 0·28, 0·68 | 0·40 | 0·26, 0·63 | <0·001 | |
Low | 0·27 | 0·15, 0·47 | 0·27 | 0·15, 0·47 | <0·001 | |
Women | ||||||
1997 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·83 | 0·49, 1·39 | 0·86 | 0·51, 1·45 | 0·57 | |
Low | 0·28 | 0·15, 0·52 | 0·27 | 0·14, 0·51 | <0·001 | |
2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·79 | 0·43, 1·44 | 0·85 | 0·46, 1·57 | 0·61 | |
Low | 0·46 | 0·25, 0·87 | 0·46 | 0·24, 0·86 | 0·02 | |
1997 and 2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·81 | 0·55, 1·20 | 0·86 | 0·58, 1·27 | 0·44 | |
Low | 0·36 | 0·23, 0·56 | 0·35 | 0·23, 0·55 | <0·001 | |
North Karelia | ||||||
Men | ||||||
1992 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·64 | 0·31, 1·29 | 0·65 | 0·32, 1·34 | 0·24 | |
Low | 0·54 | 0·28, 1·05 | 0·51 | 0·26, 1·01 | 0·054 | |
1997 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·63 | 0·29, 1·36 | 0·62 | 0·28, 1·36 | 0·23 | |
Low | 0·50 | 0·24, 1·05 | 0·49 | 0·23, 1·02 | 0·06 | |
2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·67 | 0·43, 1·04 | 0·67 | 0·43, 1·04 | 0·07 | |
Low | 0·94 | 0·61, 1·43 | 0·94 | 0·62, 1·44 | 0·81 | |
1992, 1997 and 2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 0·65 | 0·46, 0·91 | 0·65 | 0·47, 0·92 | 0·01 | |
Low | 0·73 | 0·53, 1·00 | 0·72 | 0·53, 1·00 | 0·05 | |
Women | ||||||
2002 | High | 1·00 | – | 1·00 | – | |
Intermediate | 1·03 | 0·68, 1·54 | 1·04 | 0·69, 1·56 | 0·85 | |
Low | 0·75 | 0·51, 1·13 | 0·76 | 0·51, 1·13 | 0·17 |
*P value for age-adjusted figures.
†The data from Pitkäranta in 1992 were omitted from the logistic regression analyses because of the skewed distribution in plasma vitamin C concentration.