Table 3.

Prevalence of mental health issues

Characteristic	Frequency	%
Pre-existing mental health condition diagnosed before the pandemic (n=7846)
Yes	2389	30.4
No	5272	67.2
Prefer not to say	185	2.4
Self-reported mental health issues experienced since COVID-19 (n=7846)*
Anxiety	4875	62.1
Burnout	4575	58.3
Depression	2175	27.7
PTSD	427	5.4
Other mental health issues	328	4.2
No mental health issues	1431	18.2
Mental health issues assessed by validated scales
Burnout DP (n=7688)
Low	4811	62.6
Moderate	1321	17.2
High	1556	20.2
Burnout EE (n=7701)
Low	2243	29.1
Moderate	2079	27.0
High	3379	43.9
Burnout PA (n=7689)
Low	2358	30.7
Moderate	1592	20.7
High	3739	48.6
Anxiety—GAD-7 (n=7843)
None/minimal	3149	40.2
Mild	2478	31.6
Moderate	1293	16.5
Severe	923	11.8
Depression—PHQ-9 (n=7841)
None/minimal	3321	42.5
Mild	2303	29.5
Moderate	1203	15.4
Moderately severe	620	7.9
Severe	369	4.7
Impact of events/trauma—IES-6 (n=7796)
None/minimal	4641	59.5
Moderate-severe	3155	40.5
	Mean (SD)	Range
Resilience—CD-RISC2 (n=7841)	3.21 (0.66)	0–4

Burnout DP: 0 to 3=low, 4 to 6=moderate, 7 to 18=high. Burnout EE: 0 to 6=low, 7 to 10=moderate, 11 to 18=high. Burnout PA: 0 to 12= high burnout, 13 to 14=moderate burnout, 15 to 18=low burnout. IES is categorised as 0to 9=none/minimal and >9=moderate-severe. GAD-7: 0 to 4=none/minimal, 5 to 9=mild, 10 to 14=moderate, 15 to 21=severe anxiety. PHQ-9: 0 to 4=none/minimal, 5 to 9=mild, 10 to 14=moderate, 15 to 19=moderately severe, 20 to 27=severe.

*Multiple options could be chosen.

CD-RISC2, Connor-Davidson Resilience Scale-2; COVID-19, coronavirus disease 2019; DP, depersonalisation; EE, emotional exhaustion; GAD-7, Generalized Anxiety Disorder Scale-7; IES-6, Impact of Events Scale-6; PA, personal accomplishment; PHQ-9, Patient Health Questionnaire-9; PTSD, post-traumatic stress disorder.