# Influenza A H1N1: Retrospective Analysis of PCR Confirmed Cases of H1N1 Infections in Styria - Risk Factors, Clinical Features and Outcome.

> **NCT01343979** · — · COMPLETED · sponsor: **Medical University of Graz** · enrollment: 800 (actual)

## Conditions studied

- Clinically Suspected H1N1 Infection

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01343979
- **Lead sponsor:** Medical University of Graz
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2010-10
- **Primary completion:** 2014-12
- **Final completion:** 2015-01
- **Target enrollment:** 800 (ACTUAL)
- **Last updated:** 2015-04-06


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01343979

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01343979, "Influenza A H1N1: Retrospective Analysis of PCR Confirmed Cases of H1N1 Infections in Styria - Risk Factors, Clinical Features and Outcome.". Retrieved via AI Analytics 2026-05-28 from https://api.ai-analytics.org/clinical/NCT01343979. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*