3rd Trimester Labour Post-partum Chronic disease Type II diabetes Kidney disease Asthma Unavailable SaO2 (%) <70 [70 - 84] [85 - 98] >98 Diagnosis Suspected cases Confirmed cases | 13 00 00 n = 18 01 01 01 15 n = 18 00 01 11 06 n = 18 05 13 | 72.2 00 00 % 05.6 05.6 05.6 83.3 % 00 05.6 61.1 33.3 % 27.8 72.2 |