THIRUVANANTHAPURAM: The district took more than a year to breach the 1,000-death mark during the first wave of Covid-19 last year.
However, it recorded the next 1,000 deaths in less than a month, indicating the severity of the second wave of infections.
As on Sunday, total Covid deaths in the district stood at 2,071.
A month ago the number of officially confirmed Covid deaths in the district was 989; as on April 30.
A comparison of deaths in two waves of the pandemic in the district shows that mortality rates in two age groups — 60-69 and 70 plus — decreased after April 18 whereas mortality rates in the comparatively younger age groups — 10-39 and 40-59 — increased considerably in the last two months.
If the death rate among the 10-39 age group was 4% before April, it increased to 5% in the next two months.
The mortality rate among the 40-59 age group increased from 25% to 31% in the same period.
The older age groups which faced the brunt of Covid-19 in the first wave saw the mortality rates dip from 39% to 38% in 70 plus age category and from 32% to 26% in 60-69 age category.
The proportional share of cases in all age groups has remained the same in first and second wave.
Since the fourth week of April, the weekly number of cases in 40-60 age group had peaked from 3,912 to 8,369 by the second week of May.
While the number of cases has now come down to 5,987 by the fourth week of May, number of deaths in this age group for every week rose from 16 in the fifth week of April to 66 in the fourth week of May.
The mortality rate in the age groups, 10-19, 30-39 and 40-49 have increased considerably since April 18.
The mortality rates among other age groups — 50-59, 60-69, 70-79, 80-89 and 90 plus — dipped from the pre-vaccination days.
As on Wednesday, 917 deaths happened across all age groups in Thiruvananthapuram and after April 18, 962 deaths were recorded.
There has also been a change in number of deaths in males and females in the first and second wave of pandemic.
The mortality rate among women, which was 35% in 2020, has now increased to 40% in the second wave whereas the male mortality rate decreased from 65% to 60%.
Between April and June, the number of confirmed Covid positive cases increased from 1.45 lakh to 2.6 lakh.