Time-dependent variable | Means of construction | Reason for inclusion |
---|---|---|
University hospital explanatory variables | ||
University hospital yes/no (previous year) | One-year lagged variable that is 1 for working in a university hospital and 0 for all other hospitals. | To examine the influence of working in a university hospital in the previous year on the chance of promotion. |
Time in university hospitals at rank | Begins with 0 and counts the cumulated number of years working in university hospitals at a particular rank. | To examine the impact of work experience in university hospitals on the chance of promotion. |
Time in university hospitals at rank differentiated into 1–2 years, 3–4 years, 5–6 years, and > =7 years | Constructed from time in university hospitals at rank; four variables that switch from 0 to 1 in the first, third, fourth, and seventh years of working in a university hospital. | To gain a deeper understanding of the impact of short-term, mid-term, and long-term work experience in university hospitals on the chance of promotion. |
Career stage-specific control variables | ||
Time in rank | Starts with 1 and increases by 1 with each year in rank. | To examine the influence of occupational experience on the chance of promotion. |
Time in rank squared | Squared variable of time in rank. | In connection with the variable time in rank, this variable models the growth of occupational experience and takes into account that the growth rate will decline over time. |
Doctorate in medicine | Variable that switches from 0 to 1 the year a doctorate in medicine is obtained. | To examine the impact of obtaining a PhD in medicine on the chance of promotion. |
Scientific degree | Variable that switches from 0 to 1 the year a habilitation is obtained. | To examine the impact of attaining a habilitation in medicine (highest scientific degree) on the chance of promotion. |
Time to medical specialist | Starts with 1 and increases by 1 each year, remaining constant after the speciality is completed. | To examine the impact of the fast attainment of a medical specialization on the chance of promotion. |
Medical specialty completed | Variable that switches from 0 to 1 the year a medical specialty is completed. | Completion of a medical speciality is compulsory for promotion from junior to senior physician. The variable indicates the effect of this occupational demand on the chance of promotion. |
General control variables | ||
Previous hospital tenure | Presents the total tenure at the previous hospital. The variable is constant for each year in the current hospital. | In connection with the movement variables, this variable controls for continuity with previous employers. It allows us to examine the impact of a longer tenure with the previous employer on the chance of promotion. |
History of inter-organizational moves | Starts with 0 and increases by 1 for each change between hospitals. | To examine the influence of all employer changes over the course of a career on the chance of promotion. |
Inter-organizational move | Variable that is 0 in years with no inter-organizational move and 1 in years with an inter-organizational move. | To examine the impact of an inter-organizational move on the chance of promotion. |