Which researchers really work long hours?

Main outcome measures Manuscript and peer review submissions on weekends, on national holidays, and by hour of day (to determine early mornings and late nights). Logistic regression was used to estimate the probability of manuscript and peer review submissions on weekends or holidays.

Results The analyses included more than 49 000 manuscript submissions and 76 000 peer reviews. Little change over time was seen in the average probability of manuscript or peer review submissions occurring on weekends or holidays. The levels of out of hours work were high, with average probabilities of 0.14 to 0.18 for work on the weekends and 0.08 to 0.13 for work on holidays compared with days in the same week. Clear and consistent differences were seen between countries. Chinese researchers most often worked at weekends and at midnight, whereas researchers in Scandinavian countries were among the most likely to submit during the week and the middle of the day.

Emphasis added.  Get this, you lazy bastards:

The average probability of a manuscript being submitted at the weekend for both journals was 0.14, and for a peer review it was 0.18. Peer review submissions during holidays had average probabilities of 0.13 (The BMJ) and 0.12 (BMJ Open), which were higher than the probabilities for manuscripts of 0.08 (The BMJ) and 0.10 (BMJ Open).

For weekend paper submission, China appears to be at about 0.22, India at about 0.09, see Figure 1.  France, Italy, Spain, and Brazil all submit quite late in the afternoon, often a bit after 6 p.m.

That is from a new paper by Adrian Barnett, Inger Mewburn, and Sara Schroter.  They do not tell us when they submitted it, but I wrote this blog post a wee bit after 8 p.m.

Via Michelle Dawson.