. 2019 Nov 12;12:2341–2354. doi: 10.2147/DMSO.S219524

Table 1.

Comparison Of Baseline Demographics And Work-Related Data Of The Three Groups Of Workers, Stratified By Gender

Characteristics	Female (n=4647)						Male (n=1300)
	Day Workers		Former Shift Workers		Current Shift Workers		Day Workers		Former Shift Workers		Current Shift Workers
	(n=3049)		(n=491)		(n=1107)		(n=1046)		(n=108)		(n=146)
N	%	N	%	N	%	N	%	N	%	N	%
Age at baseline (years old)
<35	478	15.7	43	8.8^b	304	27.5^c,d	115	11.0	12	11.1	20	13.7
35–45	1697	55.6	264	53.8	603	54.4	654	62.5	64	59.3	80	54.8
46–59	874	28.7	184	37.4	200	18.1	277	26.5	32	29.6	46	31.5
Age (years; mean ± SD)	40.8± 7.4		43.0± 7.8^b		38.2 ± 7.4^c,d		40.9 ± 6.6		41.2 ± 7.3		41.1 ± 7.5
Educational level^a
6–12 years	721	23.8	86	17.6^b	422	38.3^c,d	282	27.0	50	46.7^b	115	78.8^c,d
>12 years	2311	76.2	403	82.4	681	61.7	762	73.0	57	53.3	31	21.2
Marital status^a
Single/Divorce	1446	47.6	212	43.3	567	51.5^c,d	341	32.6	31	29.0	47	32.2
Married	1589	52.4	278	56.7	534	48.5	704	67.4	76	71.0	99	67.8
Income per month^a
<20,000 Baht	734	24.2	19	18.5^b	279	25.3^d	258	24.7	41	38.3^b	88	60.3^c,d
20,000–30,000 Baht	1062	35.0	130	26.5	409	37.0	279	26.7	36	33.6	46	31.5
>30,000 Baht	1241	40.8	270	55.0	417	37.7	507	48.6	30	28.1	12	8.2
Family history of Diabetes
No/Unknown	1945	63.8	302	61.5	737	66.6	709	67.8	71	65.7	99	67.8
Yes	1104	36.2	189	38.5	370	33.4	337	32.2	37	34.3	47	32.2
Occupation
Healthcare professional	569	18.7	334	68^b	887	80.2^c,d	95	9.1	23	21.3^b	54	37.0^c,d
Academic personnel	412	13.5	15	3.1	9	0.8	316	30.2	8	7.4	1	0.7
Security guards, drivers and maintenance technicians	5	0.2	0	0.0	7	0.6	126	12.0	22	20.4	47	32.2
Fulfilled other roles	2063	67.6	142	28.9	204	18.4	509	48.7	55	50.9	44	30.1
Type of shift work
Fixed shift work					47	4.2					11	7.5
Rotated shift work					1060	95.8					135	92.5
Work duration (years)
Mean ± SD	19.9 ± 9.4		23.3 ± 8.8		21.5 ± 8.0		18.8 ± 8.9		18.3 ± 9.7		21.3 ± 8.1
Shift work duration (years)
Mean ± SD			10.8 ± 8.3		20.4 ± 8.1				7.7 ± 6.7		20.6 ± 8.3
Shift work intensity (days/month)
Median ± IQR					8 ± 4						9 ± 5
Quitting shift work (years)
Mean ± SD			9.5 ± 7.5						10.8 ± 7.2

Notes: ^aMissing data <0.5%.^bsignificant difference between former shift workers and day workers at p-value <0.05; ^csignificant difference between current shift workers and day workers at p-value <0.05; ^dsignificant difference between current shift workers and former shift workers at p-value <0.05.

Abbreviations: N, Number; SD, Standard Deviation; IQR, Interquartile range.