Table 3 Events that happened on the day of the blast and their associations with having a high risk of developing PTSS four months following Beirut’s blast

Got injured the day of the blast

51 (10%)

12 (4%)

39 (17%)

 < 0·001

Loss of a relative, a friend or a co-worker the day of the blast

100 (19%)

35 (12%)

65 (28·5%)

 < 0·001

Injury of a relative, a friend or a co-worker the day of the blast

317 (61%)

171 (59%)

146 (64%)

0·15

Tested positive for COVID-19 virus during the two weeks’ period that followed the blast

57 (11%)

9 (3%)

48 (21%)

 < 0·001

Home severely damaged by the blast

89 (17%)

32 (11%)

57 (25%)

 < 0·001

Work lost following the blast

13 (2·5%)

3 (1%)

10 (4%)

0·03

Number of examined injuries during the 24 h that followed the blast

19 (19)

14 (15)

25 (22)

 < 0·001

Number of encountered blast-related deaths during the 24 h that followed the blast

3 (3)

2 (3)

4 (5)

 < 0·001

Proud of your work on that day

364 (70%)

205 (70·5%)

159 (70%)

0·86

Participant’s location at the time of the blast

0·1

At home

238 (45·8%)

129 (44·3%)

109 (47·8%)

At the hospital

177 (34·2%)

104 (35·7%)

73 (32%)

On the road (Beirut area)

57 (11%)

26 (8·9%)

31 (13·6%)

Other

47 (9%)

32 (11%)

15 (6·6%)