The coronavirus disease (COVID-19) has spread worldwide with an unprecedented impact on society. In the Philippines, several interventions such as mobility restrictions for different age groups and vaccination prioritization programs have been implemented to reduce the risks of infections and mortality. This study aimed to identify age-sex composition with greater susceptibility, longer hospitalization and higher fatality. The COVID-19 cases from March 2020 to April 2021 provided by the Department of Health Davao Region in the Philippines were analyzed. A Chi-square test was used to determine the difference in proportions of COVID-19 cases among age-sex compositions. A correlation plot of \c{hi}2 test residual was employed to investigate the differences in susceptibility. Boxplots and Kruskal-Wallis tests were utilized to compare the length of hospitalizations. The study found a significant difference in the COVID-19 susceptibility among age-sex compositions (p < 0.01). Male children and female senior citizens were the most susceptible age-sex compositions. Furthermore, senior citizens had the longest hospital days wherein the median and IQR days were 19 (15-27) for men and 18 (16-29) for women. Male senior citizen was the subgroup with the highest case fatality (21.4%, p < 0.01). It is recommended that the number of cases among senior citizens be used as an input in the planning and allocation of medical resources at the provincial and regional levels. The local government unit executives in the region can also take advantage of the availability of age-sex composition data in stratifying localities, planning, allocating COVID-19-related resources and imposing mobility restrictions.

翻译：新型冠状病毒肺炎（COVID-19）已在全球范围内传播，对社会造成空前影响。在菲律宾，当局实施了不同年龄段的出行限制及疫苗接种优先计划等干预措施，以降低感染和死亡风险。本研究旨在识别易感性更高、住院时间更长且致死率更高的年龄-性别构成群体。研究分析了菲律宾达沃区卫生部提供的2020年3月至2021年4月期间的COVID-19病例数据。采用卡方检验确定各年龄-性别构成组中COVID-19病例比例的差异，通过卡方检验残差的相关性图探究易感性差异，并运用箱线图与Kruskal-Wallis检验比较住院时长。研究发现，不同年龄-性别构成组对COVID-19的易感性存在显著差异（p < 0.01）。儿童男性与老年女性是最易感的年龄-性别构成群体。此外，老年公民的住院天数最长，其中男性中位住院天数及四分位距为19天（15-27天），女性为18天（16-29天）。老年男性是病死率最高的亚组（21.4%，p < 0.01）。研究建议，应将老年公民的病例数作为省级和地区级医疗资源规划与分配的参考依据。地方政府行政长官亦可利用年龄-性别构成数据的可得性，对地方进行分层、规划与分配COVID-19相关资源，并实施出行限制措施。