Independent variables
Prevalence of paternal perinatal depression was significant different during the 4 periods of COVID-19 pandemic (Table 3). From the official published unknown pneumonia in December, 2019 to the announcement of human to human transmission of COVID-19, the prevalence of paternal perinatal depression was significantly higher than other 3 periods (p =0.001). Moreover, majority of fathers (86.18%) reported good family function, and they had lower depression compared with those reported fair of family function (11.53% vs 32.31%,p <0.0001).