Background: This study was aimed to explore the secular trends of antibiotic sales over an 8-year period.
Methods: We retrospectively analysed aggregated monthly surveillance data on antibiotic sales to 586 hospitals from 28 provinces in China from January 2011 to December 2018. Information including generic name, sales amount, dosage form, strength, the route of administration, and geographical data were collected. Population weighted antibiotic sales were expressed in DDD per 1,000 inhabitants per day (DID). WHO’s ‘Access, Watch, Reserve’ categorization was also adopted to analyse antibiotic sales.
Results: Between 2011 and 2018, total antibiotic sales in China’s hospitals increased by 39.6% (from 4.8 DID in 2010 to 6.7 DID in 2018). Antibiotic sales were stable or had moderately decreased in 13 provinces, while in the other 15 provinces they had substantially increased. Cephalosporins were the most consumed antibiotics, accounting for 26.9% of the total antibiotic sales (1.8 DID/6.7 DID). In 2018, antibiotics in the Access category comprised 19.4% of the total sales (1.3 DID/6.7 DID), where antibiotics in the Watch category comprised the largest proportion of 71.6% (4.8 DID/6.7 DID). Population-weighted antibiotic sales were greater in secondary hospitals than in tertiary hospitals (7.3 DID vs 6.6 DID). The antibiotics sales of oral form were almost two times the sales of parenteral forms in secondary hospitals, whereas in tertiary hospitals the amounts were about the same.
Conclusions: Although efforts were made towards restricting antibiotics in the past decade by the Chinese government, antibiotic sales demonstrated an upward trend during the study period. More efforts are needed to explore whether the antibiotics are prudently used.

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On 23 Mar, 2020
On 20 Mar, 2020
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On 19 Mar, 2020
Posted 19 Feb, 2020
On 09 Mar, 2020
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On 17 Feb, 2020
On 17 Feb, 2020
On 27 Jan, 2020
Received 01 Jan, 2020
Received 01 Jan, 2020
On 29 Nov, 2019
Invitations sent on 20 Nov, 2019
On 20 Nov, 2019
On 06 Nov, 2019
On 05 Nov, 2019
On 05 Nov, 2019
On 01 Nov, 2019
On 23 Mar, 2020
On 20 Mar, 2020
On 19 Mar, 2020
On 19 Mar, 2020
Posted 19 Feb, 2020
On 09 Mar, 2020
On 18 Feb, 2020
On 17 Feb, 2020
On 17 Feb, 2020
On 27 Jan, 2020
Received 01 Jan, 2020
Received 01 Jan, 2020
On 29 Nov, 2019
Invitations sent on 20 Nov, 2019
On 20 Nov, 2019
On 06 Nov, 2019
On 05 Nov, 2019
On 05 Nov, 2019
On 01 Nov, 2019
Background: This study was aimed to explore the secular trends of antibiotic sales over an 8-year period.
Methods: We retrospectively analysed aggregated monthly surveillance data on antibiotic sales to 586 hospitals from 28 provinces in China from January 2011 to December 2018. Information including generic name, sales amount, dosage form, strength, the route of administration, and geographical data were collected. Population weighted antibiotic sales were expressed in DDD per 1,000 inhabitants per day (DID). WHO’s ‘Access, Watch, Reserve’ categorization was also adopted to analyse antibiotic sales.
Results: Between 2011 and 2018, total antibiotic sales in China’s hospitals increased by 39.6% (from 4.8 DID in 2010 to 6.7 DID in 2018). Antibiotic sales were stable or had moderately decreased in 13 provinces, while in the other 15 provinces they had substantially increased. Cephalosporins were the most consumed antibiotics, accounting for 26.9% of the total antibiotic sales (1.8 DID/6.7 DID). In 2018, antibiotics in the Access category comprised 19.4% of the total sales (1.3 DID/6.7 DID), where antibiotics in the Watch category comprised the largest proportion of 71.6% (4.8 DID/6.7 DID). Population-weighted antibiotic sales were greater in secondary hospitals than in tertiary hospitals (7.3 DID vs 6.6 DID). The antibiotics sales of oral form were almost two times the sales of parenteral forms in secondary hospitals, whereas in tertiary hospitals the amounts were about the same.
Conclusions: Although efforts were made towards restricting antibiotics in the past decade by the Chinese government, antibiotic sales demonstrated an upward trend during the study period. More efforts are needed to explore whether the antibiotics are prudently used.

Figure 1
Figure 2

Figure 3

Figure 4

Figure 5
This is a list of supplementary files associated with this preprint. Click to download.
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