# Circadian, Weekly and Seasonal Variability of Postoperative Mortality and Morbidity (Zirkadianest)

> **NCT01903382** · — · COMPLETED · sponsor: **Charite University, Berlin, Germany** · enrollment: 247506 (actual)

## Conditions studied

- Postoperative Mortality and Morbidity

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01903382
- **Lead sponsor:** Charite University, Berlin, Germany
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-01
- **Primary completion:** 2014-06
- **Final completion:** 2014-06
- **Target enrollment:** 247506 (ACTUAL)
- **Last updated:** 2014-11-10


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01903382

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01903382, "Circadian, Weekly and Seasonal Variability of Postoperative Mortality and Morbidity (Zirkadianest)". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT01903382. Licensed CC0.

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