The Cox model allowed for separate baseline hazard functions for mortality during stay in the intensive care unit compared with after stay, as defined by a time varying indicator of discharge from the intensive care unit.
However, divergent institutional approaches, varying indicators across organizations, and a lack of robust research addressing the underlining relationship between governance and corruption, currently pose challenges to promoting anti-corruption activities, especially in the health sector.
Also Rosholm (2008) finds substantial effects, but he also shows that when controlling for time-varying indicators of treatment all positive effects vanish and some even become negative, the so-called locking-in effect.
Various time-varying indicators of the respondent's own resources were included.
In the present case, the institutional context is taken into account by controlling for any factors that affect STW but do not vary over time through the use of country fixed effects as well as by including a time-varying indicator of the stringency of employment protection.
We try to avoid seasonal or business cycle shocks that could be correlated with the start of the treatment by conditioning on a time-varying indicator of the local unemployment rate.
It is equivalent to a stratified Cox model in which death is regressed on a time-varying indicator of vaccination.
We also controlled for a time-varying indicator of the presence of extra-articular manifestations of the disease during the follow up; this included rheumatoid lung, Felty's syndrome, rheumatoid carditis, eye involvement, dermatological complications (vasculitis, pyoderma gangrenosum), neuropathies and amyloidosis.
We have explored the implications of this by refitting our candidate models with the inclusion of time-varying indicators for calendar year.
While the results vary in the magnitude of the impacts and are difficult to compare, either because they focused on specific sub-populations, or because varying methodologies (including indicators of health shocks) were used, non-medical consumption fell in nearly two-thirds of the studies we analyzed.
