Table 1.

The demographic characterizers of the participants.

Demographic factors		N	%
Gender	Male	325	22.8
	Female	1098	77.2
	Total	1423	100
Age	20–29	561	39.4
	30–39	492	34.6
	40–49	268	18.8
	50–59	76	5.3
	60–69	26	1.8
	Total	1423	100
Marriage status	Single	423	29.7
	Married/ Defector	966	66.3
	Divorced/Separated/ Widowed	34	2.4
	Total	1423	100
Education	Lower than undergraduate	404	28.4
	Undergraduate	857	60.2
	Masters	144	10.1
	Medical doctorate	15	1.1
	Other doctorate	3	0.2
	Total	1423	100
Professional position in the hospital	Doctor	459	32.3
	Nurse	861	60.5
	Pharmacist	73	5.1
	Intern	30	2.1
	Total	1423	100
Professional title	Senior professional post	41	2.9
	Associate senior professional post	154	10.8
	Intermedium professional post	411	28.9
	Junior professional post	817	57.4
	Total	1423	100
Annual income	Less than￥50,000	305	21.4
	￥50,001–￥100,000	610	42.9
	￥100,001–￥150,000	269	18.9
	￥150,001–￥200,000	153	10.8
	￥200,001–￥300,000	41	2.9
	￥300,001–￥400,000	9	0.6
	￥400,001–￥500,000	29	2.0
	Higher than ￥500,001	7	0.5
Average weekly working hours	Up to 40 hours	404	28.4
	41–50 hours	807	56.7
	51–60 hours	142	10.0
	Over 60 hours	70	4.9
	Total	1423	100

Annual income was in RMB. 1RMB = 0.14 USD roughly at the time of data collection.