
Figure 1
Model of job stress among Thai nurse-midwives.

Figure 2
Random sampling of hospitals and convenience sampling of participants by head nurses (H).
Table 1
The demographic characteristics of the participants (n = 272).
| Characteristics | n | % |
|---|---|---|
| Age (years) (mean = 36.8, SD =10.14, minimum = 23, maximum = 60) | ||
| ≤30 years | 112 | 41.2 |
| 31–40 years | 55 | 20.2 |
| 41–50 years | 70 | 25.7 |
| 51–60 years | 35 | 12.9 |
| Marital status | ||
| Single | 119 | 43.8 |
| Married | 138 | 50.7 |
| Widowed/divorced/separated | 15 | 5.5 |
| Having children | ||
| No child | 162 | 59.6 |
| Having children | 110 | 40.4 |
| Education | ||
| Bachelor's degree in nursing | 257 | 94.5 |
| Master's degree (unspecified) | 15 | 5.5 |
| Work experience (years) (mean = 12.9, SD = 9.70, minimum = 1, maximum = 36) | ||
| ≤10 years | 149 | 54.8 |
| 11–20 years | 57 | 21.0 |
| 21–30 years | 48 | 17.6 |
| ≥31 years | 18 | 6.6 |
| Shift work | ||
| Day shift only | 28 | 10.3 |
| Rotating shift | 244 | 89.7 |
| Number of shifts/month (mean = 25.6, SD = 4.86, minimum = 20, maximum = 40) | ||
| 20–25 shifts | 172 | 63.3 |
| 26–30 shifts | 16 | 5.9 |
| 31–35 shifts | 76 | 27.9 |
| >36 shifts | 8 | 2.9 |
| Knowledge and skills training in the past year | ||
| ≤10 h/year | 93 | 34.2 |
| >10 h/year | 179 | 65.8 |
| Monthly income | ||
| ≤20,000 baht | 35 | 12.9 |
| 20,001–25,000 baht | 35 | 12.9 |
| 25,001–30,000 baht | 72 | 26.5 |
| >30,001 baht | 130 | 47.8 |
[i] Note: SD, standard deviation.
Table 2
Means, SDs and correlations for key variables (n = 272).
Table 3
Model fitness indices between the hypothesized model and the modified model (n = 272).
| Model | χ2 | df | CMIN/df | GFI | AGFI | CFI | RMSEA |
|---|---|---|---|---|---|---|---|
| Model fit criterion | - | - | <3.0 | >0.90 | >0.90 | ≥0.90 | ≤0.05 |
| Hypothesized | 57.70 | 21 | 2.74 | 0.96 | 0.91 | 0.95 | 0.08 |
| Modified model | 57.76 | 22 | 2.62 | 0.96 | 0.91 | 0.95 | 0.07 |
[i] Note: CMIN/df = χ2/df.
[ii] AGFI, adjusted goodness of fit; CFI, comparative fit index; GFI, goodness of fit; RMSEA, root mean square error of approximation.

Figure 3
The modified model of job stress among Thai nurse-midwives.