In addition we calculated the influence of specific types of progestogen after adjustment for length of use.
Conclusion After adjustment for length of use, users of oral contraceptives with desogestrel, gestodene, or drospirenone were at least at twice the risk of venous thromboembolism compared with users of oral contraceptives with levonorgestrel.
For a given progestogen type and after adjustment for length of use, the risk of venous thromboembolism decreased with decreasing dose of oestrogen (table 3).
The association between meropenem use and emergence of resistance remained even after adjustment for length of stay.
After statistical adjustment for length of disease, the significant increase of chemerin levels in the oldest T2DM group remained significant, suggesting that chemerin levels are dependent on age.
We observed in this study that exposure to meropenem, as short as 8 days, was already associated with emergence of resistance in Pseudomonas aeruginosa, even after adjustment for length of stay.
After statistical adjustment for length of disease, there was a loss of significance for adiponectin (P = 0.119) and for leptin in female patients (P = 0.117).
After statistical adjustment for length of disease, there was a loss of significance, between T2DM groups, for adiponectin and, in female, for leptin.
In multiple linear regression analyses, we assessed whether the contribution to AFP or oestradiol differed between cases of severe pre-eclampsia and controls, after adjustment for length of gestation, birth weight and offspring sex.
There was no effect on the risk estimate of further adjustment for age at menarche (IRR=1.13; 95% CI=1.08 1.19), whereas adjustment for length of schooling had a minimal effect (IRR=1.12; 95% CI=1.07 1.18).
Besides, as the significant difference of adiponectin levels found between T2DM age groups was lost after adjustment for length of the disease, it seems that, in T2DM patients, adiponectin levels are also dependent on the length of the disease.
