Latar belakang: Influenza-like illness merupakan penyakit yang terbanyak dijumpai di PT. X, yang dikhawatirkan akan menurunkan produktivitas kerja. Program imunisasi influenza baru diikuti oleh 30% pekexja Belum diketahui efektivitas imunisasi tersebut terhadap kejadian influenza-like illness. Penelitian ini dilakukan untuk melihat efektivitas imunisasi influenza di PT. X
Metode penelitian: Penelitian ini menggunakan disain kasus-kontrol dengan perbandingan l:l. Jumlah sampel perkelompok 88 orang. Sampel dipilih dengan random. Data dikumpulkan dengan menggunakan kuisioner, wawancara, pemeriksaan fisik dan rekam medik serta dari dokumen sumber daya manusia.
Hasil penelitian: lnfluenza~Iike illness dipengaruh oleh imunisasi (OR=4.83), lokasi kerja (0R=3.94), kebiasaan olahraga (OR=3.86), kebiasaan merokok (OR=2.86), dan Indeks Massa Tubuh (0R=0.44). Subyek yang mendapat imunisasi median lama sakit 3 (3-5) sedangkan pada yang tidak diimmmisasi median larna sakit 4 (2-7) hari. Dua nilai tersebut berbeda bermakna (p 0.008). Efektivitas imunisasi influenza terhadap kejadian influenza-like illness sebesar 69.4%.
Kesimpulan Imunisasi influenza merupakan falctor determinan utama influenza illness dengan efektivitas 69.4%.
Background : Influenza-like illness is an illness found mostly among staff members in PT X. It?s great concem due to the fact of lowering workers? productivity. Influenza immunization program in PT X has just covered 30% of the whole number of workers. So far, the effectiveness regarding the immunization on the Influenza-like illness symptoms is not known yet. This research is carried out to observe, etfectiveness of influenza immunization in PT X.Methods: This research used the design of Case-control of l:l. The number of random samples per group was 88 persons. Data was collected through carrying out questionainnaires, interview, physical observation; medical record and human resources document observation.Result: Influenza-like illness was influenced by immunization (OR=4.83), workers location (OR=3.94), sport activities (OR=3.86), smoking (OR=2.86) and Body Mass Index (0R=0.44). Workers who got imunization, their length of illness was 3 (3-5) days, while those who did not get immunization, their length of illness was 4 (2-7) days. The difference was significant with p value of 0.008. The effectiveness of influenza immunization on Influenza-like illness symptoms is 69.4%.Conclusion: The influenza immunization was main determinant factor of the influenza-like illness, the effectiveness was 69.4%.