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. 2022 Mar 21;10(2):e02729-21. doi: 10.1128/spectrum.02729-21

TABLE 2.

Comparison of demographic and clinical parameters between B.1.36 and B.1.617.2 lineages

Parameter Groups B.1.36 lineage B.1.617.2 lineage P value
Sex Males 59 (65.6%) 176 (61.1%) P = 0.52
Females 31 (34.4%) 112 (38.8%)
Age Age group I (0–10 yr) 22 (24.4%) 16 (5.5%) P = 0.02*
Age group II (11–25 yr) 23 (25.5%) 104 (36.1%) P = 0.17
Age group III (26–50 yr) 32 (35.5%) 124 (43%) P = 0.602
Age group IV (≥51 yr) 13 (14.4%) 44 (15.3%) P = 0.72
Clinical symptoms Symptomatic 31 (34.4%) 188 (65.3%) P = 1 × 10−4***
Asymptomatic 59 (65.6%) 100 (34.7%)
Severe acute respiratory illness Yes 3 (3.3%) 56 (19.4%) P = 4 × 10−4***
No 87 (96.7%) 232 (80.6%)
Influenza-like illness Yes 28 (31.1%) 132 (45.8%) P = 0.01**
No 62 (68.9%) 156 (54.1%)
Outcome Survived 89 (98.9%) 250 (86.8%) P = 2 × 10−3**
Deceased 1 (1.1%) 38 (13.2%)