Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
General stress level (change from baseline/day 1 to post-measurement/day 14) |
General stress level was assessed using the German version of the stress module of the patient health questionnaire (PHQ-). It measures the degree of impairment (not at all, a little, very much; 0-2) in the past four weeks due to nine different sources of stress (assessed by 10 items), such as health worries (item 1), stress due to care issues for family members (item 5), stress at work or in school (item 6), financial concerns (item 7) or having nobody to talk (item 8). |
change from baseline/day 1 to post-measurement/day 14 |
|
Primary |
General stress level (change from post-measurement/day 14 to follow-up/day 28) |
General stress level was assessed using the German version of the stress module of the patient health questionnaire (PHQ-). It measures the degree of impairment (not at all, a little, very much; 0-2) in the past four weeks due to nine different sources of stress (assessed by 10 items), such as health worries (item 1), stress due to care issues for family members (item 5), stress at work or in school (item 6), financial concerns (item 7) or having nobody to talk (item 8). |
change from post-measurement/day 14 to follow-up/day 28 |
|
Primary |
Symptoms of depression (change from baseline/day 1 to post-measurement/day 14) |
As a measure of depression, we used the nine items of the depression module of the patient health questionnaire (PHQ-9). The instrument assesses impairment (not at all, on some days, more than half of the days, almost every day; 0-3) due to symptoms such as loss of interest and joy in one's activities (item 1) or fatigue and low energy (item 4) over the last two weeks. |
change from baseline/day 1 to post-measurement/day 14 |
|
Primary |
Symptoms of depression (change from post-measurement/day 14 to follow-up/day 28) |
As a measure of depression, we used the nine items of the depression module of the patient health questionnaire (PHQ-9). The instrument assesses impairment (not at all, on some days, more than half of the days, almost every day; 0-3) due to symptoms such as loss of interest and joy in one's activities (item 1) or fatigue and low energy (item 4) over the last two weeks. |
change from post-measurement/day 14 to follow-up/day 28 |
|
Primary |
Anxiety (change from baseline/day 1 to post-measurement/day 14) |
Anxiety over the last two weeks was assessed using the 10-item German short version of the State-Trait-Anxiety Inventory (trait version, referenced to the last two weeks). The frequency of feelings of calmness (item 3, reversed), lack of self-confidence (item 6), negative thoughts (item 9), feelings of nervousness and unrest (item 10) etc. were rated on an 8-point scale from "almost never" to "almost always" (1-8; due to technical problems, item 7 is missing from this scale). |
change from baseline/day 1 to post-measurement/day 14 |
|
Primary |
Anxiety (change from post-measurement/day 14 to follow-up/day 28) |
Anxiety over the last two weeks was assessed using the 10-item German short version of the State-Trait-Anxiety Inventory (trait version, referenced to the last two weeks). The frequency of feelings of calmness (item 3, reversed), lack of self-confidence (item 6), negative thoughts (item 9), feelings of nervousness and unrest (item 10) etc. were rated on an 8-point scale from "almost never" to "almost always" (1-8; due to technical problems, item 7 is missing from this scale). |
change from post-measurement/day 14 to follow-up/day 28 |
|
Primary |
Subjective vitality (change from baseline/day 1 to post-measurement/day 14) |
Five items measuring participants' general subjective vitality were included to measure the influence of social distancing on a dynamic feeling of energy and psychosomatic well-being. Participants rated their agreement to statements regarding their general feelings of vitality and aliveness on a 7-point Likert scale from "not at all" to "a lot" (1-7). |
change from baseline/day 1 to post-measurement/day 14 |
|
Primary |
Subjective vitality (change from post-measurement/day 14 to follow-up/day 28) |
Five items measuring participants' general subjective vitality were included to measure the influence of social distancing on a dynamic feeling of energy and psychosomatic well-being. Participants rated their agreement to statements regarding their general feelings of vitality and aliveness on a 7-point Likert scale from "not at all" to "a lot" (1-7). |
change from post-measurement/day 14 to follow-up/day 28 |
|
Primary |
Overall well-being (change from baseline/day 1 to post-measurement/day 14) |
Overall well-being was assessed using five items of the World Health Organization Well-being Index (WHO-5). Participants needed to determine on a 6-point Likert scale to what extent the items regarding the person's happy mood, calmness, feelings of energy, feelings of recovery in the morning and interest in daily activities had applied during the last two weeks (at no point in time - all the time; 0-5). |
change from baseline/day 1 to post-measurement/day 14 |
|
Primary |
Overall well-being (change from post-measurement/day 14 to follow-up/day 28) |
Overall well-being was assessed using five items of the World Health Organization Well-being Index (WHO-5). Participants needed to determine on a 6-point Likert scale to what extent the items regarding the person's happy mood, calmness, feelings of energy, feelings of recovery in the morning and interest in daily activities had applied during the last two weeks (at no point in time - all the time; 0-5). |
change from post-measurement/day 14 to follow-up/day 28 |
|
Secondary |
Coping strategies |
All participants received a daily review questionnaire which contained two open questions instructing participants to write down 1) relevant events during the day, and 2) things that had helped them in coping positively with the current situation. From these two questions, we extracted implicit coping strategies. |
Daily for 14 consecutive days |
|
Secondary |
Daily questionnaire |
All participants received a daily review questionnaire which contained two open questions (see above) in addition to 20 items assessing: interest and joy during daily activities, nervousness/anxiety, subjective vitality, feelings of optimism, feelings of connectedness, feelings of control (over one's own life), feelings of competency, acceptance of current situation, happiness with the day, physical activity, time spent outside, time spent in the presence of others, time spent virtually with others, structure of the day, influence of the Corona crisis on one's day, stress elicited by the Corona crisis, unhealthy ways of stress regulation, healthy ways of stress regulation, behavior today (adequate - overreacting), feelings of sickness |
Daily for 14 consecutive days |
|