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This study is aimed to investigate the extent to which electronic word of mouth (eWOM) affects brand image and purchase intention. Further, other variables employed in this study are message source credibility and information quality. These variables are employed to explore the influence of eWOM on brand image and purchase intention by simultaneously involving message source credibility and information quality as independent variables. Message source credibility and information quality become important, because they can affect persuasion of customers. The research type is explanatory research with quantitative approach. The sampling technique used in this study was purposive sampling. The model was tested empirically using sample of 138 members of MIUI Indonesia Fansite. Analysis data technique in this study uses Generalized Structured Component Analysis (GSCA) to examine the effect of electronic word of mouth, message source credibility, information quality on brand image and purchase intention. Results showed that electronic word of mouth, message source credibility, information quality have positive and significant effect on brand image and purchase intention. Key words: electronic word of mouth; message source credibility; information; brand image; purchase intention

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Latar belakang. Gawai adalah salah satu perkembangan teknologi yang digunakan secara merata pada semua kalangan usia, termasuk anak-anak berusia di bawah 5 tahun. Penggunaan gawai pada anak balita menyebabkan anak kurang tertarik untuk berinteraksi dengan lingkungannya atau bermain dengan teman sebaya sehingga mengganggu proses perkembangan secara alami. Tujuan. Mengetahui hubungan antara intensitas penggunaan gawai dengan perkembangan anak usia 24-60 bulan.Metode. Penelitian analitik observasional dengan pendekatan crosssectional dilakukan pada anak usia 24-60 bulan di Kelurahan Simomulyo Surabaya. Pengambilan sampel dilakukan dengan consecutive sampling. Intensitas penggunaan gawai diukur menggunakan kuesioner penilitian sedangkan perkembangan anak diukur dengan melakukan pemeriksaan perkembangan menggunakan formulir KPSP. Analisis dilakukan dengan uji korelasi Spearman.Hasil. Terdapat 66 anak yang ikut serta dalam penelitian. Anak-anak dengan intensitas penggunaan gawai rendah menunjukkan hasil pemeriksaan perkembangan sesuai, sedangkan intensitas penggunaan gawai tinggi menunjukkan hasil pemeriksaan meragukan. Terdapat hubungan antara intensitas penggunaan gawai dengan perkembangan anak usia 24-60 bulan (p=0,000), dengan kekuatan sedang dan arah hubungan positif (koefisien korelasi = 0,521)Kesimpulan. Intensitas penggunaan gawai yang tinggi dapat mempengaruhi proses perkembangan anak usia 24-60 bulan, dibutuhkan peran aktif orang tua dan tenaga kesehatan dalam memantau dan mendukung perkembangan anak.

Background The number of diphtheria cases recently increased, such that an outbreak was declared in East Java Province, which includes the Sampang District. Immunization completion status is a determining factor for diptheria infection. Objective To investigate for correlations between immunization status and outcomes (severity level, fatality, and complications) of diphtheria patients in the Sampang District. Methods This analytic, cross-sectional study used secondary data from the East Java Provincial Health Office on diphteria patients aged 0-20 years during the 2011-2015 outbreak in the Sampang District and interviews with diphtheria patients in that region. The Diphtheria Research Team of Soetomo Hospital collected data on immunization status, diphtheria severity (mild, moderate, or severe), case fatality (died or survived), and complications in the patients (with or without complications). Spearman’s, Chi-square, and Fisher’s exact tests were used for data analyses, accordingly. Results Seventy-one patients with clinical diphtheria were identified, 17 of whom were confirmed with positive culture results. The case fatality rates were 7% in patients with clinical and 5.9% in confirmed diphtheria. There were no correlations between patient immunization status and severity (P=0.469 clinical, P=0.610 confirmed), or fatality (P=0.618 clinical, P=0.294 confirmed) of diphtheria in the clinical and confirmed diphtheria patients. However, there was a correlation between patient immunization status and the emergence of complications in clinical (P=0.013), but not in confirmed (P=0.620) diphtheria patients. Conclusion There is a correlation between immunization status and complications in clinical diphtheria patients. Such a correlation is not found in confirmed diphtheria cases because none of the patients had complete immunization status.